CN111167981B

CN111167981B - Medical suture needle bending device

Info

Publication number: CN111167981B
Application number: CN202010112329.2A
Authority: CN
Inventors: 张乃明; 李伟; 吴旋; 仇超; 汪菊萍; 高柏; 吕平平
Original assignee: Huaiyin Medical Instruments Co ltd
Current assignee: Huaiyin Medical Instruments Co ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2021-02-19
Anticipated expiration: 2040-02-24
Also published as: CN112589014A; CN112387909A; CN111167981A; CN112589013A; CN112605321A

Abstract

The invention discloses a medical suture needle bending device, and belongs to the field of mechanical manufacturing. The device includes: a frame; the bending device comprises a driving wheel, a driven wheel, a forming wheel, a first belt and a second belt, wherein the first belt is sleeved on the driving wheel and the driven wheel, the second belt is sleeved on the forming wheel, and the driving wheel, the driven wheel and the forming wheel are arranged in a triangular shape; the guiding device comprises two adjusting plates which are oppositely arranged, the adjusting plates are fixedly arranged on the rack and positioned above the second belt, and the guiding devices are used for adjusting the feeding direction of the sewing needle; the adjusting plates are arc-shaped and gradually draw close in opposite directions along the conveying direction of the second belt, and the gap between the near ends of the two adjusting plates is slightly larger than the maximum width of the suture needle. The invention can avoid the problem of waste products caused by the fact that the suture needle enters the bending device after deflecting.

Description

Medical suture needle bending device

Technical Field

The invention relates to the field of mechanical manufacturing, in particular to a medical suture needle bending device.

Background

The suture needle is called suture needle for short, and is an instrument for suturing various tissues. The needle is divided into a straight needle, a semi-curved needle and a curved needle according to whether the two points of the needle tip and the needle tail have arc degrees clinically. The curved needle has the widest clinical application and is suitable for suturing narrow or deep tissues. The arc camber is divided into 1/2, 1/4, 3/8, 5/8 and the like, and almost all tissues and organs can be sutured by curved needles with different sizes and radians, so that the demand of the curved needles is the largest. The curved needle is formed by bending under external force on the basis of a straight needle, the bending process of the curved needle is difficult to realize automation due to different sizes of the curved needle, such as diameter, radian, length and the like, the bending process of most domestic suture needle manufacturers is manual bending or semi-automatic bending (manual feeding and mechanical impact bending), and the manual feeding has the problems of low positioning precision, high randomness, high rejection rate, high labor intensity, low production efficiency and the like, and simultaneously has a plurality of potential safety hazards. The quality of the product depends on the proficiency of workers, so that the production scale and the production efficiency are greatly limited.

The invention patent with application number 201610129429.X discloses a full-automatic bending machine for medical suture needles, which comprises a rack body, wherein a power driving device, a bending device, an automatic feeding device and a beating plane deviation rectifying device are arranged on the rack body. The invention effectively solves the problems that the prior medical suture needle with radian adopts manual operation bending or semi-automatic bending, the product quality and the production efficiency of the bent needle mainly depend on the proficiency of workers, and the production scale and the production efficiency are greatly limited.

The semi-finished product of the sewing needle is a flat surface with planar upper and lower end surfaces, and the two sides are end surfaces with certain radian. The above patent ensures that the beat surface enters the bending device by arranging a deviation rectifying device. However, in the above scheme, the suture needle directly enters the bending device through the deviation correcting device. After the front end of the sewing needle enters the deviation correcting device, the front part is stressed, the back section can tilt, the direction of the sewing needle deviates, and the needle pushing rod cannot effectively push the sewing needle, so that the vertical feeding of the bending device and even the feeding of the bending device cannot be guaranteed, and the blockage is caused.

Disclosure of Invention

The invention provides a medical suture needle bending device which is used for solving the problems that a suture needle is easy to deflect and cannot be vertically fed into a bending device when the suture needle is bent in the prior art.

A medical suture needle bending device, comprising:

a frame;

the bending device comprises a driving wheel, a driven wheel, a forming wheel, a first belt and a second belt, wherein the first belt is sleeved on the driving wheel and the driven wheel, the second belt is sleeved on the forming wheel, and the driving wheel, the driven wheel and the forming wheel are arranged in a triangular shape; and the number of the first and second groups,

the guiding device comprises two adjusting plates which are oppositely arranged, the adjusting plates are fixedly arranged on the rack and positioned above the second belt, and the guiding device is used for adjusting the feeding direction of the sewing needle;

the adjusting plates are arc-shaped and gradually draw close in opposite directions along the conveying direction of the second belt, and the gap between the two near ends of the adjusting plates is slightly larger than the maximum width of the suture needle.

Preferably, the end of the adjusting plate close to the first belt is provided with a bending part, and the bending part is matched with the shape of a gap formed by the first belt and the second belt.

More preferably, the method further comprises the following steps:

adjusting device, it includes telescopic cylinder, first adjusting plate, second adjusting plate and the spring of stepping down, telescopic cylinder is fixed to be set up in the frame, first adjusting plate is fixed to be set up telescopic cylinder's output, first adjusting plate with pass through between the second adjusting plate the spring of stepping down is connected, the second adjusting plate is located first adjusting plate below, telescopic cylinder's flexible direction with the direction of delivery of first belt is 45 contained angles.

More preferably, the method further comprises the following steps:

the feeding device comprises a blanking motor, a blanking roller and a blanking pipe, wherein the blanking motor and the blanking pipe are fixedly arranged on the rack, the blanking pipe is used for accommodating a sewing needle, the blanking motor is used for driving the blanking roller to rotate, the blanking pipe is positioned above the blanking roller, the lower end of the blanking pipe is attached to the blanking roller, feeding grooves are uniformly formed in the blanking roller along the circumferential direction, the feeding grooves are used for accommodating the sewing needle, and the sewing needle is uniformly driven to fall onto the second belt when the blanking roller rotates.

Preferably, the blanking device comprises a blanking hopper and a shaking device, wherein the blanking hopper is hinged to the rack, the shaking device is used for driving the blanking hopper to shake, a discharge hole is formed in the lower end of the blanking hopper, the discharge hole is over against the upper end of the blanking pipe, and a feed inlet matched with the discharge hole is formed in the upper end of the blanking pipe.

Preferably, the blanking hopper comprises a movable plate, a fixed plate and side plates, the movable plate and the fixed plate are arranged in a V shape, the side plates are fixedly installed on two sides of the fixed plate, two sides of the lower end of the movable plate are hinged to the fixed plate, and the shaking device is used for driving the movable plate to perform reciprocating turnover motion.

Preferably, one side of the fixed plate, which is far away from the movable plate, is provided with a material baffle plate, and the material baffle plate and the fixed plate are arranged in a V-shaped structure.

Preferably, the shaking device comprises an anti-blocking motor, a first connecting rod and a second connecting rod, the anti-blocking motor is fixedly mounted on the rack and used for driving the first connecting rod to rotate, one end of the second connecting rod is hinged to one end of the first connecting rod, the other end of the second connecting rod is hinged to the movable plate, and the fixed plate is hinged to the bracket;

the blanking hopper at least has a first working state and a second working state:

when the sewing machine is in a first working state, the sewing needle does not block the fixed plate and the movable plate, the first connecting rod drives the second connecting rod to rotate, the second connecting rod drives the movable plate to act, and the movable plate turns towards the fixed plate;

when the sewing machine is in a second working state, the sewing needle blocks the fixed plate and the movable plate, the first connecting rod drives the second connecting rod to rotate, the second connecting rod drives the blanking hopper to turn over, and the movable plate and the fixed plate are relatively fixed.

Preferably, the portable type solar cell module further comprises a limiting plate, two ends of the limiting plate are connected to the side plates, and the fixed plate and the movable plate are located on the same side of the limiting plate.

The invention provides a medical suture needle bending device, wherein a suture needle is fed through a second belt, so that the contact area is greatly increased relative to a push needle rod, and the problem that the suture needle cannot be pushed due to dislocation of the push needle rod and the suture needle is solved.

Drawings

FIG. 1 is a first structural schematic view of a medical suture needle bending apparatus provided by the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a second structural view of a bending apparatus for a medical suture needle according to the present invention;

FIG. 4 is an enlarged view of a portion B of FIG. 3;

FIG. 5 is a front view of FIG. 1;

FIG. 6 is a schematic structural diagram of the adjustment device in FIG. 1;

FIG. 7 is a front view of FIG. 3;

FIG. 8 is a first structural schematic diagram of a blanking hopper and a shaking device;

FIG. 9 is a second structural view of the blanking hopper and the shaking device;

fig. 10 is a schematic structural diagram three of the dropping hopper and the shaking device.

Description of reference numerals:

11. the automatic blanking device comprises a driving wheel, 12, a driven wheel, 13, a forming wheel, 14, a first belt, 15, a second belt, 20, an adjusting plate, 201, a bending part, 30, a first adjusting plate, 31, a telescopic cylinder, 32, a yielding spring, 33, a second adjusting plate, 40, a blanking motor, 41, a blanking roller, 411, a feeding groove, 42, a blanking pipe, 50, an anti-blocking motor, 51, a first connecting rod, 52, a second connecting rod, 60, a hopper, 601, a limiting plate, 61, a movable plate, 62, a fixing plate, 63 and a material blocking plate.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

The first embodiment is as follows:

referring to fig. 1 to 3, a bending apparatus for a medical suture needle according to an embodiment of the present invention includes a frame (not shown), a bending apparatus, and a guide apparatus, wherein,

the frame is used for supporting the bending device and the guide device;

the bending device comprises a driving wheel 11, a driven wheel 12, a forming wheel 13, a first belt 14 and a second belt 15, the driving wheel 11 is driven by a motor, a support wheel is further arranged on the support and used for supporting the first belt 14 with the driving wheel 11 and the driven wheel 12, when the motor drives the driving wheel 11 to rotate, the first belt 14 is driven to rotate, the first belt 14 is sleeved on the driving wheel 11 and the driven wheel 12, the second belt 15 is sleeved on the forming wheel 13, another support wheel is arranged on the support at a position matched with the forming wheel 13 and used for supporting the second belt 15 in a matched manner with the forming wheel 13, the forming wheel 13 and the driving wheel 11 rotate synchronously, the synchronous rotation can be realized by a chain transmission or gear transmission manner on the driving wheel 11 and the forming wheel 13, a driving device can also be independently arranged on the forming wheel 13, such as a motor and the like and used for driving the forming wheel 13 to rotate so as to drive the second, the driving wheel 11, the driven wheel 12 and the forming wheel 13 are arranged in a triangular shape, the driving wheel 11 and the driven wheel 12 are positioned at the upper side and the lower side in the vertical direction, the forming wheel 13 is positioned in the middle, and the forming wheel 13 is positioned at one side of the driving wheel 11 and the driven wheel 12 in the horizontal direction;

the guiding device comprises two adjusting plates 20 which are oppositely arranged, as shown in fig. 1 and 2, the adjusting plates 20 are fixedly arranged on the frame and positioned above the second belt 15 and used for adjusting the feeding direction of the sewing needle; the adjusting plates 20 are arc-shaped and gradually get close to each other along the conveying direction of the second belt 15, and the gap between the near ends of the two adjusting plates 20 is slightly larger than the maximum width of the suture needle. The proximal end gap of the two adjusting plates 20 is determined to guide the suture needle without influencing the passing of the suture needle, and the proximal end gap is 0.1-0.5mm larger than the diameter of the suture needle according to the difference of the diameters of the suture needle. The gap setting can be carried out according to the manufacturing precision and the manufacturing material of the adjusting plate 20, the gap setting aims to not influence the passing of the sewing needle, and meanwhile, the condition that the feeding direction of the sewing needle cannot be effectively guided due to the overlarge gap is avoided. The maximum width of the sewing needle refers to the width which is measured on the plane of the beat plane of the sewing needle and is vertical to the extending direction of the needle diameter, namely the maximum distance between the cambered surfaces at two sides of the beat plane. For better guiding effect, a straight line may be provided at the end of the adjusting plate 20 close to the first belt 14 for better guiding adjustment of the sewing needle. The lower end of the adjusting plate 20 is slightly higher than the second belt 15 to prevent the second belt 15 from being damaged due to friction between the adjusting plate 20 and the second belt 15.

When the sewing needle bending device works, the driving wheel 11 and the forming wheel 13 both rotate, the driving wheel 11 drives the first belt 14 to move, the forming wheel 13 rotates to drive the second belt 15 to move, the sewing needle is placed on the upper surface of the second belt 15, the flat surface of the sewing needle faces upwards, the second belt 15 moves to drive the sewing needle to enter between the two adjusting plates 20, when the sewing needle moves to the positions of the adjusting plates 20, the sewing needle is limited by the adjusting plates 20, the sewing needle is subjected to the resistance of the opposite side surfaces of the adjusting plates 20 and the friction force of the second belt 15, slides along the inner side surfaces of the adjusting plates 20, finally moves to the straight line segment, is guided by the straight line segment to vertically feed the sewing needle into the bending device, after the front end of the sewing needle moves downwards under the action force of the first belt 14 to cause the tilting of the rear section, the rear section still keeps the feeding direction unchanged due to the limitation of the adjusting plates 20, and then the sewing needle is fed in the, no deflection occurs leading to waste.

For better guidance, as shown in fig. 2, a bent portion 201 may be further disposed at an end of the adjusting plate 20 close to the first belt 14, and the bent portion 201 is adapted to the shape of the gap formed by the first belt 14 and the second belt 15.

Example two:

in order to avoid the situation that the flat surface of the suture needle is not arranged upwards due to the working error or the lack of attention when the suture needle is placed manually, as shown in fig. 5 and 6, the present embodiment further includes an adjusting device, which includes a telescopic cylinder 31, a first adjusting plate 3020, a second adjusting plate 3320 and a yielding spring 32, wherein the telescopic cylinder 31 is fixedly arranged on the frame, the first adjusting plate 3020 is fixedly arranged at the output end of the telescopic cylinder 31, the first adjusting plate 3020 is connected with the second adjusting plate 3320 through the yielding spring 32, the second adjusting plate 3320 is located below the first adjusting plate 3020, and the telescopic direction of the telescopic cylinder 31 forms an included angle of 45 degrees with the conveying direction of the first belt 14. The flexible cylinder 31 is reciprocal flexible and is driven first adjusting plate 3020 and remove, second adjusting plate 3320 is connected on first adjusting plate 3020 through stepping down spring 32, and then drive second adjusting plate 3320 when first adjusting plate 3020 removes, the flexible direction of flexible cylinder 31 and the direction of transfer of second drive belt are 45 contained angles, can reduce because the suture needle also leads to unable effective upset when the suture needle receives the extrusion direction of second adjusting plate 3320 the same with the flexible direction of flexible cylinder 31, lead to the suture needle to fail effective upset and make the probability that the aspect is up. Because the placing direction of the sewing needle is close to the moving direction of the second belt 15 when the sewing needle is sent into the second belt 15, the condition that the sewing needle cannot be effectively turned over can be basically avoided when the stretching direction of the stretching cylinder 31 and the sending direction of the second belt 15 form an angle of 45 degrees.

Example three:

on the basis of the first or second embodiment, as shown in fig. 5 and 7, the present embodiment further includes a feeding device, which includes a blanking motor 40, a blanking roller 41 and a blanking pipe 42, the blanking motor 40 and the blanking pipe 42 are fixedly disposed on the rack, the blanking pipe 42 is configured to accommodate a suture needle, a cross section of an inner cavity of the blanking pipe 42 is rectangular, and can guide the suture needle, the blanking motor 40 is configured to drive the blanking roller 41 to rotate, the blanking pipe 42 is located above the blanking roller 41, a lower end of the blanking pipe 42 is attached to the blanking roller 41, the blanking roller 41 is uniformly provided with a feeding slot 411 along a circumferential direction, the feeding slot 411 is configured to accommodate the suture needle, the size of the feeding slot is based on accommodating one suture needle, and when the blanking roller 41 rotates, the suture needle is uniformly driven to fall onto the second belt 15. The blanking roller 41 is attached to the lower end of the blanking pipe 42, the sewing needle can be prevented from accidentally falling, when the feeding groove 411 rotates to a position just opposite to the lower end of the blanking pipe 42, the sewing needle falls into the feeding groove 411, the blanking roller 41 rotates to block the blanking pipe 42, the feeding groove 411 continues to rotate, the sewing needle slides and falls onto the second belt 15 from the feeding groove 411 under the action of gravity, and the second belt 15 brings the sewing needle into the bending device.

Example four:

on the basis of the third embodiment, as shown in fig. 4, 8, 9 and 10, the present embodiment further includes a drop hopper 60 and a shaking device, the drop hopper 60 is hinged on the frame, the shaking device is used for driving the drop hopper 60 to shake, the lower end of the drop hopper 60 is provided with a discharge port, the discharge port faces the upper end of the drop pipe 42, and the upper end of the drop pipe 42 is provided with a feed port matched with the discharge port. The shaking device can be a vibration motor or other shaking devices which can drive the blanking hopper 60 to shake. When a large amount of suture needles are placed, the suture needles are disordered and easy to block, so that blockage is caused, the shaking device can apply external force to the suture needles, the destructive force is balanced, and the suture needles tend to be regular so as to fall into the blanking pipe 42 from the blanking hopper 60.

Specifically, as shown in fig. 9, the blanking hopper 60 includes a movable plate 61, a fixed plate 62 and side plates, the movable plate 61 and the fixed plate 62 are arranged in a V shape, the side plates are fixedly mounted on two sides of the fixed plate 62, two sides of the lower end of the movable plate 61 are hinged to the fixed plate 62, and the shaking device is used for driving the movable plate 61 to perform reciprocating and overturning motions. When the movable plate 61 is turned over in a reciprocating manner, the sewing needles can be extruded, so that the sewing needles tend to be regularly arranged.

Further, a striker plate 63 is disposed on a side of the fixed plate 62 away from the movable plate 61, and the striker plate 63 and the fixed plate 62 are arranged in a V-shaped structure.

Further, the shaking device comprises an anti-blocking motor 50, a first connecting rod 51 and a second connecting rod 52, the anti-blocking motor 50 is fixedly installed on the rack, the anti-blocking motor 50 is used for driving the first connecting rod 51 to rotate, one end of the second connecting rod 52 is hinged to one end of the first connecting rod 51, the other end of the second connecting rod 52 is hinged to the movable plate 61, and the joint of the fixed plate 62 and the striker plate 63 is hinged to the rack;

the drop hopper 60 has at least a first operating condition and a second operating condition:

when the sewing needle is in the first working state, the fixed plate 62 and the movable plate 61 are not blocked by the sewing needle, the first connecting rod 51 drives the second connecting rod 52 to rotate, the second connecting rod 52 drives the movable plate 61 to move, and the movable plate 61 is overturned towards the fixed plate 62;

when the sewing needle is in the second working state, the fixed plate 62 and the movable plate 61 are blocked by the sewing needle, the first connecting rod 51 drives the second connecting rod 52 to rotate, the second connecting rod 52 drives the blanking hopper 60 to turn over, and the movable plate 61 and the fixed plate 62 are relatively fixed.

When the anti-blocking motor 50 rotates, the first connecting rod 51 is driven to rotate, the first connecting rod 51 drives the second connecting rod 52, and the second connecting rod 52 drives the movable plate 61 to turn over in a reciprocating manner, so that an external force is applied to the suture needle. When the suture needle is seriously blocked, the suture needle is extruded and deformed by forcibly applying external force, so that waste products are caused. And the junction through fixed plate 62 and striker plate 63 articulates to the frame, when seriously blockking up, when leading to the unable effective upset of fly leaf 61, fly leaf 61 atress this moment drives whole blanking fill 60 upset, make the sewing needle slide along fixed plate 62 under the action of gravity, striker plate 63 and fixed plate 62 are certain angle, can avoid sewing needle from sliding down on fixed plate 62, the gliding in-process position of sewing needle under the action of gravity can change, thereby destroy original balanced state, thereby can prevent to block up the production with the waste product.

Further, a limiting plate 601 is further included, two ends of the limiting plate 601 are connected to the side plates, and the fixed plate 62 and the movable plate 61 are located on the same side of the limiting plate 601. When the first connecting rod 51 drives the second connecting rod 52 and further drives the movable plate 61 to return, the movable plate 61 impacts the limiting plate 601 to impact the whole blanking hopper 60, so as to vibrate the sewing needle, thereby changing the original position of the sewing needle and further enabling the sewing needle to tend to be aligned.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. A medical suture needle bending device is characterized by comprising:

a frame;