CN116196166A - Capsulorhexis needle special for cataract surgery and use method thereof - Google Patents

Abstract

The invention relates to the technical field of capsulorhexis needles, in particular to a capsulorhexis needle special for ophthalmic cataract surgery and a use method thereof. According to the capsulorhexis needle special for the ophthalmic cataract surgery and the application method thereof, the side pulling button is pushed to move forwards by the thumb, the side pulling button is pulled to move backwards by the index finger, so that the rudder stock deflects by taking the rudder head as a base point, at the moment, both ends of the rudder stock deflect towards the central axis of the forceps holder, and the two forceps arms and the forceps needle are pulled to be folded relatively by the pulling button so as to realize clamping.

Description

Capsulorhexis needle special for cataract surgery and use method thereof

Technical Field

The invention relates to the technical field of capsulorhexis needles, in particular to a capsulorhexis needle special for ophthalmic cataract surgery and a use method thereof.

Background

Cataract surgery from initial needle extraction to current ultrasonic emulsification, the cataract surgery technique gets a qualitative leap in the operation steps and the operation effect, along with the continuous progress of the precise nano technology, the cataract surgery incision is also gradually and minimally invasive, and the defects to be optimized in common technology at present are as follows: cataract surgery is a capsulorhexis embedding operation of an implanted intraocular lens, and the control of a needle head by conventional capsulorhexis embedding is mainly realized by the kneading of fingers.

The prior patent (publication number: CN 112618154A) discloses a novel special capsulorhexis needle for cataract surgery, which structurally comprises: the invention realizes that the inner frame needle tube is matched with the capsulorhexis forceps needle holder, the needle tube body is spliced with the supermilk tube groove and the perfusion pushing groove by the inner frame needle tube, a composite single tube multi-loop fractional working effect is formed by the single tube splicing needle tube body at the capsulorhexis forceps holder block, the flushing artificial lens baffling operation of the baffling washing tank is realized at the terminal, the confluence feedback operation of the whole collecting inclined tube disc-shaped bunching line pipeline is realized, the integrated ophthalmic cataract surgery minimally invasive technology is promoted, the bending degree and the extension degree of the needle body and the forceps knife pair eye angle inner groove are ensured, the flexibility of the integrated capsulorhexis needle in medical care surgery is promoted, the single tube body is spliced with the needle head to form the micro-adjustment matched operation effect of the multi-storage mechanical groove, and the safety of cataract surgery is promoted. The capsulorhexis needle in the prior art is closed by finger kneading, so that the capsulorhexis needle is easier to fatigue in continuous use, and the capsulorhexis needle is opened by self elasticity, so that the control is poor.

In view of the above, we propose a special capsulorhexis needle for cataract surgery and a use method thereof.

Disclosure of Invention

The invention aims to provide a special capsulorhexis needle for cataract surgery and a use method thereof, and aims to solve the problems that in the prior art, the capsulorhexis needle is closed by finger kneading, the continuous use is easier to fatigue, and the opening of the capsulorhexis needle depends on the elasticity of the capsulorhexis needle and the control is poor. In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a special capsulorhexis needle of ophthalmic cataract surgery, includes the tweezers, the tweezers comprises two tweezers arms that have elasticity that tailstock and one end set up, and two tweezers arms all bend in the one end of backing to the tailstock mutually and be equipped with the tweezers needle, be provided with on the tweezers arm and promote the rudder pusher that self foldingly.

Preferably, the rudder pusher comprises a connecting strip arranged between the two forceps arms, one end of the connecting strip is fixedly arranged at the end part of the tailstock, and the other end of the connecting strip is fixedly provided with a rudder head.

The surface of rudder head has seted up the annular, and is provided with the rudder stock on the rudder head, the middle part of rudder stock is provided with the lantern ring, and the rudder stock rotates along the annular through the lantern ring and connects.

The two side surfaces of the forceps arms are provided with through grooves running through along the horizontal direction, two ends of the rudder stock extend into the through grooves on the same side respectively, a poking button is arranged on the outer side of the forceps arms, a protruding head is fixedly arranged on one side of the poking button surface opposite to the forceps arms, an embedding opening is formed in the end portion of the rudder stock, and the poking button is rotatably connected in the embedding opening through the protruding head.

The raised head, the rudder stock and the rudder head are provided with a self-locking device.

The rudder stock is provided with a limiting piece for pushing the two forceps arms to expand.

Preferably, the limiting piece is a protrusion on the rudder stock, and the protrusion is positioned on the inner side of the forceps arm.

The number of the protrusions is four, and the four protrusions are symmetrically arranged at two ends of the rudder stock in a group of two.

Preferably, the self-locking device comprises through holes formed along the upper side and the lower side of the embedded opening, the surface of the raised head is vertically inserted with a pin shaft, and the pin shaft is movably connected in the through holes in a translatable and non-detachable mode.

The lower side of the middle position of the rudder stock is provided with a notch, an inner groove penetrating through the rudder stock is arranged between the notch and the embedded openings at two sides, two inner grooves are connected with inner pins in a sliding mode, and one end of each inner pin, which is located in the notch, is fixedly provided with a brake hook.

The brake ring is sleeved outside the ring groove, when the inner pin moves towards the rudder stock, the brake ring does not contact the ring groove, and when the inner pin moves towards the toggle button, the brake ring contacts the ring groove.

And the rudder stock and the rudder head are locked when the brake hook contacts the ring groove.

The embedded opening is internally and fixedly provided with an elastic steel sheet, the remaining end of the inner pin is fixedly inserted into the steel sheet, and the steel sheet drives the inner pin and the brake hook to normally contact with the annular groove.

Preferably, the knob is of a T-shaped structure, and the surface of the knob is of a rough surface.

Preferably, the inner side of the forceps arm is provided with a caulking groove for embedding the connecting strip and the rudder head.

Preferably, the poking button is connected with the raised head through a screw.

The application method of the capsulorhexis needle special for the cataract surgery comprises the following steps:

s1, holding a tailstock by a holding method of a conventional capsulorhexis needle in a palm-down posture during use, and respectively placing a thumb and an index finger on the outer sides of two forceps arms;

s2, when the forceps needle needs to be closed, pushing the side pulling button to move forward by using a thumb, and pulling the side pulling button to move backward by using an index finger, so that the rudder stock deflects by taking a rudder head as a base point, and taking a diagram as an example, at the moment, both ends of the rudder stock deflect towards the central axis of the forceps clip, and the pulling button is used for pulling the two forceps arms and the forceps needle to be folded relatively, so that the clamping is realized;

s3, when the forceps needle is required to be loosened, the thumb is used for poking the side poking button to move backwards, the index finger is used for pushing the side poking button to move forwards, so that the rudder stock is reversely deflected by taking the rudder head as a base point, and in the drawing, both ends of the rudder stock deviate from the deflection along the central axis of the forceps clip at the moment, and the bulge on the inner side of the rudder stock can push the two forceps arms and the forceps needle to open oppositely;

s4, when the rudder stock is pushed to deflect through the pulling button, the pulling button and the raised head are stressed, so that the pin shaft deflects in the through hole to a certain extent and pushes the inner pin to twist the steel sheet to slide to a certain extent, the brake hook at the end part of the inner pin is separated from contact with the ring groove, and the rudder stock can be released from and locked with the rudder head at the moment, so that the forceps needle cannot be clamped suddenly and damaged when the forceps clip falls;

s5, after the tweezer is clamped, a user can loosen the other side poking button under the condition of keeping control of the one side poking button, so that the side steel sheet returns from a twisted state and drives the inner pin to slide outwards, and at the moment, a brake hook on the inner pin is buckled on the inner wall of the ring groove to lock the rudder stock and the rudder head, so that the tweezer is kept in the clamped state.

Compared with the prior art, the invention has the beneficial effects that:

in the invention, the side pulling button is pushed to move forward by the thumb, the side pulling button is pulled by the index finger to move backward, so that the rudder stock deflects by taking the rudder head as a base point, at the moment, both ends of the rudder stock deflect towards the central axis of the forceps holder, and the two forceps arms and the forceps needle are pulled to be folded relatively by the pulling button so as to realize clamping.

According to the invention, the side pulling button is pulled by the thumb to move backwards, the side pulling button is pushed by the index finger to move forwards, so that the rudder stock is reversely deflected by taking the rudder head as a base point, at the moment, both ends of the rudder stock deviate from the offset along the central axis of the forceps holder, the protrusions on the inner side of the rudder stock can push the two forceps arms and the forceps needle to open back to back, and compared with the conventional forceps holder which returns through self elasticity, the means for loosening the forceps needle by using the rudder stock can ensure that the opening process is completely controlled in the hand of an operator, avoid the rapid rebound of the forceps holder and facilitate related refinement operation.

In the invention, under the condition of keeping control of one side pulling button, the other side pulling button is released, so that the side steel sheet returns from a twisted state and drives the inner pin to slide outwards, at the moment, the brake hook on the inner pin is buckled on the inner wall of the ring groove, and the rudder stock and the rudder head are locked, so that the forceps clip is kept in a clamping state, and the active force application of an operator is not needed, thereby further reducing the fatigue brought by operation.

In the invention, when the rudder stock is pushed to deflect by the poking button, the poking button and the raised head are stressed, so that the pin shaft is deflected in the perforation to a certain extent and props against the inner pin to twist the steel sheet to slide to a certain extent, the brake hook at the end part of the inner pin is separated from contact with the ring groove, and the rudder stock can be unlocked and locked with the rudder head at the moment, thereby preventing the forceps needle from being suddenly clamped and damaged when the forceps clip falls off, and having better use safety.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a perspective cross-sectional view of the present invention;

FIG. 4 is a schematic view of the inside of the forceps arm of the present invention;

fig. 5 is a schematic perspective view of a rudder propeller according to the present invention;

FIG. 6 is a bottom view of FIG. 5 in accordance with the present invention;

FIG. 7 is an exploded view of FIG. 5 in accordance with the present invention;

fig. 8 is a perspective sectional view of the rudder stock of the present invention.

In the figure: 1. a forceps clip; 11. a tailstock; 12. a forceps arm; 13. a forceps needle; 2. a rudder pusher; 21. connecting strips; 22. a rudder head; 23. a ring groove; 24. a rudder stock; 25. a collar; 26. a through groove; 27. a dial button; 28. a nose; 29. a notch is formed; 210. a self-locking device; 2101. perforating; 2102. a pin shaft; 2103. a notch; 2104. an inner tank; 2105. an inner pin; 2106. a brake hook; 2107. a steel sheet; 211. a limiting piece; 2111. a protrusion.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution: the utility model provides a special capsulorhexis needle of ophthalmic cataract surgery, includes tweezers 1, and tweezers 1 comprises tailstock 11 and two tweezers arms 12 that have elasticity that its one end set up, and two tweezers arms 12 all bend in the back of the body of tailstock 11's one end and be equipped with tweezers 13, are provided with on the tweezers arm 12 and promote the rudder pusher 2 that oneself foldingly, hold tailstock 11 with the centre of the palm decurrent gesture during the use to place thumb and forefinger outside two tweezers arms 12 respectively, carry out tweezers 1 control through pushing away rudder 2.

In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 8, the rudder propeller 2 includes a connecting bar 21 disposed between two forceps arms 12, one end of the connecting bar 21 is fixedly disposed at the end of the tailstock 11, and the other end of the connecting bar 21 is fixedly disposed with a rudder head 22;

the surface of the rudder head 22 is provided with a ring groove 23, the rudder head 22 is provided with a rudder stock 24, the middle part of the rudder stock 24 is provided with a lantern ring 25, and the rudder stock 24 is rotationally connected along the ring groove 23 through the lantern ring 25;

the side surfaces of the two forceps arms 12 are respectively provided with a through groove 26 penetrating in the horizontal direction, two ends of the rudder stock 24 extend into the through grooves 26 on the same side respectively, the outer sides of the forceps arms 12 are provided with a poking button 27, one side of the surface of the poking button 27 opposite to the forceps arms 12 is fixedly provided with a raised head 28, the end part of the rudder stock 24 is provided with a embedded opening 29, the poking button 27 is rotatably connected in the embedded opening 29 through the raised head 28, the left poking button 27 moves forwards, the right poking button 27 moves backwards, the rudder stock 24 can deflect clockwise by taking the rudder head 22 as a base point, in the case of fig. 2, at the moment, the two ends of the rudder stock 24 deflect towards the central axis of the forceps clip 1, and the two forceps arms 12 and the forceps needles 13 are pulled to be folded relatively by the poking button 27, otherwise, the left poking button 27 moves backwards, the rudder stock 24 can deflect anticlockwise by taking the rudder head 22 as the base point, at the moment, the two ends of the rudder stock 24 deflect away from the forceps arms 12 on the inner sides of the forceps clip 1, and the two forceps needles 21113 are pushed by the protrusions 2111 on the inner sides of the rudder stock 24;

the nose 28, the rudder stock 24 and the rudder head 22 are provided with a self-locking device 210;

the rudder stock 24 is provided with a stop 211 which pushes the two forceps arms 12 to expand.

In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 8, the stopper 211 is provided as a protrusion 2111 on the rudder stock 24, and the protrusion 2111 is located inside the forceps arm 12;

the number of protrusions 2111 is four, and the four protrusions 2111 are symmetrically disposed at both ends of the rudder stock 24 in a group of two.

In this embodiment, as shown in fig. 1, 2, 3, 4 and 5 to 8, the self-locking device 210 includes a through hole 2101 formed along the upper and lower sides of the embedded opening 29, the surface of the raised head 28 is vertically inserted with a pin 2102, the pin 2102 is movably connected in the through hole 2101 in a translatable and non-detachable manner, and when the rudder bar 24 is pushed to deflect by the pulling button 27, the pulling button 27 and the raised head 28 are stressed, so that the pin 2102 is offset in the through hole 2101 to a certain extent;

a gap 2103 is formed at the lower side of the middle position of the rudder stock 24, an inner groove 2104 penetrating through the rudder stock 24 is arranged between the gap 2103 and the embedded openings 29 at two sides, an inner pin 2105 is connected in the two inner grooves 2104 in a sliding manner, and a brake hook 2106 is fixedly arranged at one end of the inner pin 2105 positioned in the gap 2103;

the brake hook 2106 is sleeved outside the ring groove 23, when the inner pin 2105 moves towards the rudder stock 24, the brake hook 2106 does not contact the ring groove 23, and when the inner pin 2105 moves towards the toggle button 27, the brake hook 2106 contacts the ring groove 23;

the rudder stock 24 and the rudder head 22 are locked when the brake hooks 2106 contact the ring grooves 23;

the embedded opening 29 is internally fixedly provided with an elastic steel sheet 2107, the remaining end of the inner pin 2105 is fixedly inserted into the steel sheet 2107, the steel sheet 2107 drives the inner pin 2105 and the brake hook 2106 to normally contact the annular groove 23, and the pin shaft 2102 can deviate to prop against the inner pin 2105, so that the steel sheet 2107 is twisted to slide to a certain extent, and the brake hook 2106 at the end part of the inner pin 2105 is separated from contact with the annular groove 23.

In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 8, the knob 27 is of a T-shaped structure, so that fingers are prevented from being clamped by the raised head 28 and the through groove 26 during use, and the surface of the knob 27 is of a rough surface, so that the surface of the knob 27 has better friction force, and slipping during use is avoided.

In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 8, the inner side of the forceps arm 12 is provided with an embedding groove into which the connecting strip 21 and the rudder head 22 are embedded, and when the two forceps arms 12 are folded, the connecting strip 21 and the rudder head 22 can be embedded along the embedding groove without interfering with the clamping of the forceps arms 12.

In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 8, the dial 27 and the raised head 28 are connected by a screw, and the dial 27 and the raised head 28 can be quickly assembled and disassembled by the screw, so that relevant cleaning and disinfection can be performed.

The application method of the capsulorhexis needle special for the cataract surgery comprises the following steps:

s1, holding a tailstock 11 in a palm-down posture by a holding method of a conventional capsulorhexis needle when in use, and respectively placing a thumb and an index finger on the outer sides of two forceps arms 12;

s2, when the forceps needle 13 needs to be closed, pushing the side pulling button 27 to move forward, and pulling the side pulling button 27 to move backward by an index finger to enable the rudder stock 24 to deflect by taking the rudder head 22 as a base point, taking fig. 2 as an example, at the moment, both ends of the rudder stock 24 deflect towards the central axis of the forceps clip 1, and pulling the two forceps arms 12 and the forceps needle 13 to be folded relatively by utilizing the pulling button 27 so as to realize clamping;

s3, when the forceps needle 13 needs to be loosened, the thumb is used for poking the side poking button 27 to move backwards, the index finger is used for pushing the side poking button 27 to move forwards, so that the rudder stock 24 reversely deflects by taking the rudder head 22 as a base point, and taking fig. 2 as an example, at the moment, both ends of the rudder stock 24 deviate from each other along the central axis of the forceps clip 1, and the protrusions 2111 on the inner side of the rudder stock 24 can push the two forceps arms 12 and the forceps needle 13 to open oppositely;

s4, when the rudder stock 24 is pushed to deflect through the pulling button 27, the pulling button 27 and the raised head 28 are stressed, so that the pin shaft 2102 deflects in the through hole 2101 to a certain extent and pushes the inner pin 2105 to twist the steel sheet 2107 to slide to a certain extent, the brake hook 2106 at the end part of the inner pin 2105 is out of contact with the annular groove 23, and at the moment, the rudder stock 24 can be unlocked and locked with the rudder head 22, and therefore, when the tweezer 1 falls down, the tweezer cannot be clamped suddenly, and the tweezer needle 13 is damaged;

s5, after the tweezer 1 is clamped, a user can release the other side toggle 27 under the condition of keeping control of the one side toggle 27, so that the side steel sheet 2107 returns from a twisted state and drives the inner pin 2105 to slide outwards, at the moment, the brake hook 2106 on the inner pin 2105 is buckled on the inner wall of the annular groove 23, and the rudder stock 24 and the rudder head 22 are locked, so that the tweezer 1 is kept in the clamped state.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a special capsulorhexis needle of ophthalmic cataract surgery, includes tweezers (1), tweezers (1) are by tailstock (11) and two tweezers arms (12) that have elasticity that one end set up, and two tweezers arms (12) all bend in the one end of backing to tailstock (11) and be equipped with tweezers needle (13), its characterized in that: the forceps arms (12) are provided with rudder pushers (2) for pushing the forceps arms to fold.

2. The capsulorhexis needle special for cataract surgery of claim 1, wherein: the rudder propeller (2) comprises a connecting strip (21) arranged between the two forceps arms (12), one end of the connecting strip (21) is fixedly arranged at the end part of the tailstock (11), and the other end of the connecting strip (21) is fixedly provided with a rudder head (22);

the surface of the rudder head (22) is provided with a ring groove (23), the rudder head (22) is provided with a rudder stock (24), the middle part of the rudder stock (24) is provided with a lantern ring (25), and the rudder stock (24) is rotationally connected along the ring groove (23) through the lantern ring (25);

the two sides of the forceps arms (12) are provided with through grooves (26) penetrating through in the horizontal direction, two ends of the rudder stock (24) extend into the through grooves (26) on the same side respectively, a poking button (27) is arranged on the outer side of the forceps arms (12), a raised head (28) is fixedly arranged on one side, opposite to the forceps arms (12), of the surfaces of the poking buttons (27), an embedding opening (29) is formed in the end part of the rudder stock (24), and the poking buttons (27) are rotatably connected in the embedding opening (29) through the raised head (28);

the raised head (28), the rudder stock (24) and the rudder head (22) are provided with a self-locking device (210);

and a limiting piece (211) for pushing the two forceps arms (12) to expand is arranged on the rudder stock (24).

3. The capsulorhexis needle special for cataract surgery of claim 2, wherein: the limiting piece (211) is arranged as a protrusion (2111) on the rudder stock (24), and the protrusion (2111) is positioned on the inner side of the forceps arm (12);

the number of the protrusions (2111) is four, and the four protrusions (2111) are symmetrically arranged at two ends of the rudder stock (24) in a group of two.

4. The capsulorhexis needle special for cataract surgery of claim 2, wherein: the self-locking device (210) comprises a through hole (2101) formed along the upper side and the lower side of the embedded opening (29), a pin shaft (2102) is vertically inserted on the surface of the raised head (28), and the pin shaft (2102) is movably connected in the through hole (2101) in a translatable and non-detachable mode;

a gap (2103) is formed in the lower side of the middle position of the rudder stock (24), an inner groove (2104) penetrating through the rudder stock (24) is formed between the gap (2103) and the embedded openings (29) on the two sides, inner pins (2105) are connected in the two inner grooves (2104) in a sliding mode, and a brake hook (2106) is fixedly arranged at one end of each inner pin (2105) located in the gap (2103);

the brake hook (2106) is sleeved outside the annular groove (23), when the inner pin (2105) moves towards the rudder stock (24), the brake hook (2106) does not contact the annular groove (23), and when the inner pin (2105) moves towards the poking button (27), the brake hook (2106) contacts the annular groove (23);

when the brake hook (2106) contacts the ring groove (23), the rudder stock (24) and the rudder head (22) are locked;

the embedded opening (29) is internally and fixedly provided with an elastic steel sheet (2107), the remaining end of the inner pin (2105) is fixedly inserted on the steel sheet (2107), and the steel sheet (2107) drives the inner pin (2105) and the brake hook (2106) to normally contact with the annular groove (23).

5. The capsulorhexis needle special for cataract surgery of claim 2, wherein: the poking button (27) is of a T-shaped structure, and the surface of the poking button (27) is of a rough surface.

6. The capsulorhexis needle special for cataract surgery of claim 2, wherein: the inner side of the forceps arm (12) is provided with a caulking groove for embedding the connecting strip (21) and the rudder head (22).

7. The capsulorhexis needle special for cataract surgery of claim 2, wherein: the poking button (27) is connected with the protruding head (28) through a screw.

8. The method for using the capsulorhexis needle special for cataract surgery as claimed in claim 1, comprising the following steps:

s1, holding a tailstock (11) in a palm-down posture by a holding method of a conventional capsulorhexis needle when in use, and respectively placing a thumb and an index finger on the outer sides of two forceps arms (12);

s2, when the forceps needle (13) needs to be closed, pushing the side pulling button (27) to move forward by using a thumb, and pulling the side pulling button (27) to move backward by using an index finger, so that the rudder stock (24) deflects by taking the rudder head (22) as a base point, taking fig. 2 as an example, at the moment, both ends of the rudder stock (24) deflect towards the central axis of the forceps clip (1), and pulling the two forceps arms (12) and the forceps needle (13) to be folded relatively by using the pulling button (27), so as to realize clamping;

s3, when the forceps needle (13) needs to be loosened, the thumb is used for poking the side poking button (27) to move backwards, the index finger is used for pushing the side poking button (27) to move forwards, so that the rudder stock (24) reversely deflects by taking the rudder head (22) as a base point, and taking the figure 2 as an example, at the moment, both ends of the rudder stock (24) deviate from the offset along the central axis of the forceps clip (1), and the protrusions (2111) on the inner side of the rudder stock (24) can push the two forceps arms (12) and the forceps needle (13) to open reversely;

s4, when the rudder stock (24) is pushed to deflect through the poking button (27), the poking button (27) and the raised head (28) are stressed, so that the pin shaft (2102) deflects in the through hole (2101) to a certain extent and pushes the inner pin (2105) to twist the steel sheet (2107) to slide to a certain extent, the brake hook (2106) at the end part of the inner pin (2105) is separated from contact with the annular groove (23), and at the moment, the rudder stock (24) can be released from and locked with the rudder head (22), so that the forceps clip (1) cannot be clamped suddenly when falling down, and the forceps needle (13) is damaged;

s5, after the tweezer (1) is clamped, a user can release the other side poking button (27) under the condition of keeping control of the other side poking button (27), so that the side steel sheet (2107) returns from a twisted state and drives the inner pin (2105) to slide outwards, at the moment, a brake hook (2106) on the inner pin (2105) is buckled on the inner wall of the ring groove (23), and the rudder stock (24) and the rudder head (22) are locked, so that the tweezer (1) is kept in the clamped state.

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