A medical needle holder and working method

Abstract

The present invention discloses a medical needle holder and a working method, which can avoid the loss of surgical suture needles due to the needle holder bouncing off after falling, reduce unnecessary surgical risks, and do not need to change the existing use of surgical instruments and the working habits of surgeons, which is very conducive to promotion and popularization. The medical needle holder comprises: a first handle (101), a fixed holding rod (102), a movable holding rod (103), a central axis (104), a clamping portion (105), a second handle (401), and an elastic locking device; a first sawtooth is arranged on the inner side of the lower part of the fixed holding rod, and a second sawtooth meshing with the first sawtooth is arranged on the inner side or near the lower part of the movable holding rod, and the second sawtooth has an elastic locking device, which is pressed against the meshing part of the first and second sawtooths; the meshing surface of the first sawtooth and the second sawtooth is parallel to the central axis; the locking direction of the first sawtooth and the second sawtooth is perpendicular to the direction in which the needle holder is most easily deformed.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a medical needle holder and a working method of the medical needle holder. Background Art

[0002] The invention of the medical needle holder has a long history. With the continuous development of the medical industry, the requirements for surgical operations have become increasingly stringent. Traditional surgical suturing requires doctors to have extremely high hand-eye coordination. Relying on the surgeon's manual skills and the use of simple tools for suturing can no longer meet medical needs. Therefore, medical needle holders that can improve the safety and accuracy of suturing have been invented and widely used.

[0003] After continuous improvement and iteration, the needle holders currently in widespread use are made of biosafe, corrosion-resistant, high-strength stainless steel, and their shapes and mechanisms are relatively fixed. Different types of surgeries can choose different models of needle holders with corresponding suture needle specifications for surgical suturing, becoming one of the indispensable and important surgical instruments.

[0004] With the continuous development of modern medicine, there are many different ways to hold the needle holder according to different surgical sites and requirements. The most common ones are the handle grasping type, finger buckle type, single buckle type and palm thumb method. However, different gripping methods have different requirements for surgeons, and some gripping methods are prone to gripping errors and bring safety hazards.

[0005] At the same time, although the existing needle holders have solved the basic needs of surgical suturing, there are frequent cases where the clamped suture needles are lost due to improper placement or too eager handover of instruments during use, which causes the needle holder to pop open. The pop-up of the needle holder means that the clamped suture needles will be lost or contaminated, especially when the surgical suture needles fall outside the operating table due to the fall of the needle holder, making them difficult to find. Surgical suture needles are items that must be counted during the inventory of surgical items. If they are not counted clearly or are missing, the body cavity cannot be closed to end the operation. Although surgeons should handle surgical instruments with care during the operation, the actual patient's condition is complicated during the operation, the surgical operation steps are numerous, and emergencies and sudden situations can occur at any time and are complicated. It is difficult to truly avoid the occurrence of suture needles falling and collapsing due to the ejection of the needle holder. Once the surgical suture needle collapses and is lost during the operation, it is necessary to start searching, which will definitely affect the progress of the operation, cause delays in the operation, increase surgical risks, and pose huge safety hazards.

[0006] The main reason why the needle holder falls and bounces open is that in the traditional design, the meshing direction and unlocking direction of the locking teeth are parallel to the rotation center axis direction of the needle holder, and this direction is the direction in which the needle holder is most likely to deform. When the needle holder falls and is impacted, it is easy to deform and bounce open, resulting in the loss of the suture needle. When holding the needle holder, surgeons have different gripping requirements due to surgical needs and personal habits. In order to solve the above problems, the present invention discloses a medical needle holder and a working method, which decouples the locking teeth and the unlocking direction to achieve a new needle holder that prevents falling and bouncing and is suitable for the different gripping habits of surgeons. Summary of the invention

[0007] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to provide a medical needle holder, which can avoid the loss of surgical suture needles due to the needle holder bouncing off after falling, reduce unnecessary surgical risks, and does not require changing the existing use of surgical instruments and the working habits of surgeons, which is very conducive to popularization.

[0008] The technical solution of the present invention is: this medical needle holder comprises: a first handle 101, a fixed holding rod 102, a movable holding rod 103, a central axis 104, a clamping portion 105, a second handle 401, and an elastic locking device;

[0009] The fixed holding rod connected to the first handle and the movable holding rod connected to the second handle rotate through the central axis to clamp the suture needle through the clamping part;

[0010] A first sawtooth is arranged on the inner side of the lower part of the fixed holding rod, and a second sawtooth meshing with the first sawtooth is arranged on the inner side or near the lower part of the movable holding rod, and an elastic locking device is arranged at the second sawtooth, which is pressed tightly at the meshing part of the first and second sawtooths;

[0011] The locking directions 303 of the first and second saw teeth are perpendicular to the central axis direction 301 .

[0012] The present invention can avoid the loss of surgical suture needles due to the needle holder bouncing off after falling, thereby reducing unnecessary surgical risks, and does not require changing the existing use of surgical instruments and the working habits of surgeons, which is very conducive to popularization.

[0013] A working method of a medical needle holder is also provided, wherein when the needle holder is a needle holder with a specification of less than 16 cm, the following steps are performed:

[0014] (1) Place the medical needle holder in an autoclave for sterilization;

[0015] (2) Open the movable holding rod and the fixed holding rod, place the surgical suture needle in the clamping part, and use fingers or palms to clamp the first handle and the second handle inward until the inverted teeth are engaged with the movable locking teeth, and then perform the surgical operation;

[0016] (3) After the operation is completed, place the needle holder in a safe space, push the unlocking lever inward to separate the inverted teeth from the movable locking teeth, and remove the surgical suture needle;

[0017] (4) End.

[0018] Another working method of a medical needle holder is also provided, wherein when the needle holder is a needle holder with a size greater than or equal to 16 cm, the following steps are performed:

[0019] (1) Place the medical needle holder in an autoclave for sterilization;

[0020] (2) Open the movable holding rod and the fixed holding rod, place the surgical suture needle on the clamping part, and use fingers or palms to clamp the first handle and the second handle inward until the elastic upper locking tooth buckle is engaged with the elastic lower locking tooth buckle, and then perform the surgical operation;

[0021] (3) After the operation is completed, the needle holder is placed in a safe space, the elastic upper locking tooth buckle and the elastic lower locking tooth are dislocated and separated, and the surgical suture needle is removed;

[0022] (4) End. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. 1 is a front view of an embodiment of a medical needle holder according to the present invention in an open state.

[0024] Figure 2 yes Figure 1 Side view of the parts disassembled.

[0025] Figure 3 FIG. 1 is a front view of an embodiment of a medical needle holder according to the present invention in a closed state.

[0026] Figure 4 FIG. 4 is a front view of an unlocked state of an embodiment of a medical needle holder according to the present invention.

[0027] Figure 5 FIG. 1 is a partial cross-sectional view of an unlocked state of an embodiment of a medical needle holder according to the present invention.

[0028] Figure 6 FIG. 1 is a front view of another embodiment of the medical needle holder according to the present invention in an open state.

[0029] Figure 7 1 is a front view of some parts of another embodiment of the medical needle holder according to the present invention in a closed state.

[0030] Figure 8 FIG. 1 is a partial lower side view of another embodiment of the medical needle holder according to the present invention in a closed state.

[0031] Fig. 9 FIG. 4 is a force diagram of another embodiment of the medical needle holder according to the present invention.

[0032] In the figure, 101, the first handle; 102, the fixed holding rod; 103, the movable holding rod; 104, the central axis; 105, the clamping part; 106, the locking tooth rotation axis; 107, the unlocking pressure rod; 108, the unlocking push rod; 109, the grip stabilizing rod; 110, the spring sheet; 111, the spring sheet contact platform; 112, the inverted tooth; 113, the movable locking tooth; 114, the spring sheet fixed axis; 1031, the movable holding rod groove; 1131, the movable locking tooth groove; 201, the elastic upper locking tooth buckle; 202, the elastic lower locking tooth buckle; 301, the central axis direction; 302, the most easily deformed direction; 303, the locking direction; 401, the second handle. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0034] It should be noted that the term "comprises" and any variations in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, working method, apparatus, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, working methods, products or equipment.

[0035] like Figure 1-9 As shown, the medical needle holder comprises: a first handle 101, a fixed holding rod 102, a movable holding rod 103, a central axis 104, a clamping portion 105, a second handle 401, and an elastic locking device;

[0036] The fixed holding rod connected to the first handle and the movable holding rod connected to the second handle rotate through the central axis to clamp the suture needle through the clamping part;

[0037] A first sawtooth is arranged on the inner side of the lower part of the fixed holding rod, and a second sawtooth meshing with the first sawtooth is arranged on the inner side or near the lower part of the movable holding rod, and an elastic locking device is arranged at the second sawtooth, which is pressed tightly at the meshing part of the first and second sawtooths;

[0038] The locking directions 303 of the first and second saw teeth are perpendicular to the central axis direction 301 .

[0039] The present invention can avoid the loss of surgical suture needles due to the needle holder bouncing off after falling, thereby reducing unnecessary surgical risks, and does not require changing the existing use of surgical instruments and the working habits of surgeons, which is very conducive to popularization.

[0040] Preferably, in the elastic locking device, the inverted tooth 112 is arranged on the inner side of the fixed holding rod as the first saw tooth, the movable locking tooth unit is connected to the movable holding rod through the locking tooth rotating shaft 106, the movable locking tooth unit is Y-shaped and includes a movable locking tooth 113, an unlocking pressure rod 107, and an unlocking push rod 108, the movable locking tooth serves as the second saw tooth, when the first and second saw teeth are engaged, the unlocking pressure rod partially overlaps with the movable holding rod, the top end of the unlocking pressure rod is located on the outside of the movable holding rod, the unlocking push rod partially overlaps with the second handle, the top end of the unlocking push rod does not exceed the outside of the second handle, and the inner side of the second handle has a spring sheet contact platform 111, the fixed part of the spring sheet 110 is fixed to the movable locking tooth through the spring sheet fixing shaft 114, and the movable part of the spring sheet contacts the spring sheet contact platform.

[0041] Preferably, a grip stabilizing rod 109 is disposed on the outer side of the second handle to help stabilize the grip of the medical needle holder.

[0042] Preferably, the spring sheet contact platform fits the lower part of the movable part of the spring sheet, thereby ensuring stability and fit during locking and unlocking, and reducing wear of the device.

[0043] Preferably, the movable holding rod is provided with a movable holding rod groove 1031, the movable locking tooth 113 is provided with a movable locking tooth groove 1131, the movable holding rod groove 1031 and the movable locking tooth groove 1131 are engaged with each other, the inverted tooth 112 and the movable locking tooth 113 are on the same meshing surface, and the locking direction 303 is perpendicular to the central axis direction 301. This further ensures that the needle holder is not easy to pop open in the locked state.

[0044] Preferably, the first handle, the second handle, the fixed holding rod, the movable holding rod, the unlocking pressure rod, the unlocking push rod, the gripping stabilizing rod, the inverted teeth, and the movable locking teeth are all made of stainless steel, titanium alloy, or magnesium alloy, which can be sterilized at high temperature and have good strength and hardness. The spring sheet is made of carbon steel, alloy steel, or titanium alloy, which can be sterilized at high temperature and have good resilience, strength and hardness.

[0045] Preferably, in the elastic locking device, the elastic upper locking tooth buckle 201 is arranged as the second serration on the inner side of the movable holding rod, and the elastic lower locking tooth buckle 202 is arranged as the first serration on the inner side of the fixed holding rod. The elastic upper locking tooth buckle and the elastic lower locking tooth buckle open and close through their own elastic deformation, and the locking direction 303 is perpendicular to the central axis direction 301.

[0046] Preferably, the elastic upper locking tooth buckle is a lower curved hook, which includes a first fixed end 2011, a first curved portion 2012, and a first hook portion 2013; the elastic lower locking tooth buckle is an upper curved hook, which includes a second fixed end 2021, a second curved portion 2022, and a second hook portion 2023; the first fixed end is fixedly connected to the inner side of the movable holding rod, and the second fixed end is fixedly connected to the inner side of the fixed holding rod. The lower surface of the first hook portion is provided with a lower serration, and the upper surface of the second hook portion is provided with an upper serration engaged with the lower serration. The width of the upper and lower serrations is greater than their height. When the elastic locking device is in a locked state, the first curved portion abuts against the fixed holding rod, and the second curved portion abuts against the movable holding rod. When the locking operation is performed, the elastic upper locking tooth buckle is deformed in an upward direction and perpendicular to the central axis, and the elastic lower locking tooth buckle is deformed in a downward direction and perpendicular to the central axis. When the elastic upper locking tooth buckle and the elastic lower locking tooth buckle are buckled, both of them generate a pulling force in the opposite direction to reset the buckle, thereby locking the buckle and achieving the effect of anti-bounce. When unlocking, the unlocking is performed by the upper and lower misalignment operation of the elastic upper locking tooth buckle and the elastic lower locking tooth buckle, and the upper and lower misalignment directions are parallel to the central axis direction, thereby achieving the unlocking effect.

[0047] Preferably, the first handle, the second handle, the fixed holding rod, the movable holding rod, the elastic upper locking tooth buckle, and the elastic lower locking tooth buckle are all made of stainless steel, titanium alloy, or magnesium alloy, can be sterilized at high temperature, and have good strength and hardness.

[0048] A working method of a medical needle holder is also provided, wherein when the needle holder is a needle holder with a specification of less than 16 cm, the following steps are performed:

[0049] (1) Place the medical needle holder in an autoclave for sterilization;

[0050] (2) Open the movable holding rod and the fixed holding rod, place the surgical suture needle in the clamping part, and use fingers or palms to clamp the first handle and the second handle inward until the inverted teeth are engaged with the movable locking teeth, and then perform the surgical operation;

[0051] (3) After the operation is completed, place the needle holder in a safe space, push the unlocking lever inward to separate the inverted teeth from the movable locking teeth, and remove the surgical suture needle;

[0052] (4) End.

[0053] Another working method of a medical needle holder is also provided, wherein when the needle holder is a needle holder with a size greater than or equal to 16 cm, the following steps are performed:

[0054] (1) Place the medical needle holder in an autoclave for sterilization;

[0055] (2) Open the movable holding rod and the fixed holding rod, place the surgical suture needle on the clamping part, and use fingers or palms to clamp the first handle and the second handle inward until the elastic upper locking tooth buckle is engaged with the elastic lower locking tooth buckle, and then perform the surgical operation;

[0056] (3) After the operation is completed, the needle holder is placed in a safe space, the elastic upper locking tooth buckle and the elastic lower locking tooth are dislocated and separated, and the surgical suture needle is removed;

[0057] (4) End.

[0058] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0059] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 7 , Figure 8 , Fig. 9 As shown, the medical needle holder of the present invention has a locking tooth with a spring structure or an elastic structure perpendicular to the central axis to achieve the effect of preventing the needle holder from bouncing open when it falls. Needle holders of different specifications are used according to surgical needs. A needle holder with too small specifications will cause the elastic structure to deform too small and fail to achieve the effect of preventing the needle holder from bouncing open when it falls. Therefore, the present invention adopts two designs to cover needle holders of all specifications to achieve the effect of preventing the needle holder from bouncing open when it falls.

[0060] For smaller needle holders, such as Figure 1-Figure 5 As shown, its design scheme is as follows: the first handle 101 has an inverted tooth 112 for locking the closed state of the needle holder; the fixed holding rod 102 rotates through the central axis 104 and clamps the suture needle in the clamping part 105; the clamping part has anti-slip grooves to prevent the clamped suture needle from slipping; the movable holding rod 103 on the other side is connected to the movable locking tooth 113 through the locking tooth rotating shaft 106; the movable locking tooth 113 has an unlocking pressure rod 107 and an unlocking push rod 108 for unlocking the needle holder; the second handle 401 connected to the movable push rod 103 has a gripping stabilizing rod 109 and a spring sheet contact platform 111; the movable locking tooth 113 and the spring sheet 110 are fixed to each other through the spring sheet fixing shaft 114; when the material of the medical needle holder is 316 type stainless steel, the needle holder with a specification of less than 16 cm can adopt the design scheme of the spring structure; usually, when a small needle holder is needed for limbs, etc., this anti-bounce design needle holder can be used.

[0061] For larger needle holders, such as Figure 6-Figure 9As shown, the design is as follows: the first handle 101, the fixed holding rod 102, the movable holding rod 103, the central axis 104, and the clamping portion 105 remain unchanged; the elastic upper locking buckle 201 and the movable holding rod are an integral whole; the elastic lower locking buckle 202 and the fixed holding rod are an integral whole; the elastic upper locking buckle and the elastic lower locking buckle open and close through their own elastic deformation; when the material of the medical needle holder is 316 stainless steel, needle holders of 16 cm and above can adopt an elastic structure design; usually, this bulletproof opening design needle holder can be used when a medium or large needle holder is needed for abdominal surgery. Fig. 9 As shown, the direction 302 in which the needle holder is most easily deformed during use is parallel to the central axis direction 301. For the needle holder controlled by a spring structure, the direction of the force after the fixed tooth locking shaft 112 and the movable tooth locking shaft 113 are meshed is perpendicular to the central axis direction, so that the force in the locking direction 303 is perpendicular to its most easily deformed direction 302. At this time, it can only be unlocked by unlocking the spring structure, ensuring that the needle holder is unlocked when the spring is not manually operated, thereby achieving the effect of preventing it from bouncing open when it falls.

[0062] The needle holder is controlled by an elastic structure, and the unlocking direction after the meshing of the elastic upper locking tooth buckle and the elastic lower locking tooth buckle is parallel to the central axis direction. When in use, after the fingers are inserted into the first handle and the second handle, the fixed holding rod and the movable holding rod are opened and closed by staggering the axial direction of the rotating shaft, that is, the locking tooth biting surface of the elastic upper locking tooth buckle and the elastic lower locking tooth buckle is parallel to the rotating axis direction to achieve opening and closing, and the meshing teeth width of the elastic upper locking tooth buckle and the elastic lower locking tooth buckle are greater than their height, so that the unlocking stroke is greater than the staggering stroke, and it is not unlocked due to the small staggering force. Therefore, the needle holder can be better prevented from bouncing open when it falls, and a larger bullet-proof needle holder can be customized, and its model will not be restricted because the needle holder is too large and easy to bounce open. The larger the traditional needle holder, the more difficult it is to lock and prevent it from bouncing open.

[0063] The needle holder controlled by a spring structure realizes the unlocking and locking functions through the compression and rebound of the spring sheet 110. The locking effect is independent of the material properties of the inverted teeth 112 and the movable locking teeth 113. The elastic properties of the spring sheet 110 can be selected according to the user's usage habits and the comfort of the operating feel.

[0064] The needle holder is controlled by a spring structure, and the movable locking tooth 113, the unlocking pressure rod 107 and the unlocking push rod 108 are integrated. When in use, the thumb can be used to unlock the needle holder, and the index finger, middle finger or ring finger can be used to unlock the needle holder, which satisfies the need for convenient manual unlocking of the needle holder in different holding methods.

[0065] The needle holder is controlled by a spring structure, one end of the spring sheet 110 is fixed to the movable locking tooth 113 through a spring sheet fixing shaft 114, and the other end of the spring sheet 110 is a movable end and is kept floating by a spring sheet contact platform 111. The spring sheet contact platform 111 can fit the width of the spring sheet 110, thereby ensuring stability and fit during locking and unlocking, and reducing wear on the instrument.

[0066] The needle holder is controlled by a spring structure, and the movable holding rod 103 is provided with a movable holding rod groove 1031, and the movable locking tooth 113 is provided with a movable locking tooth groove 1131. The movable holding rod groove 1031 and the movable locking tooth groove 1131 are engaged with each other to achieve the limiting effect of the needle holder, and the inverted tooth 112 and the movable locking tooth 113 are in the same meshing surface, further ensuring that the needle holder is not easy to bounce open in the locked state.

[0067] The needle holder controlled by an elastic structure performs a locking function through the deformation of the material. When the locking operation is performed, the deformation direction of the elastic upper locking tooth buckle is upward and perpendicular to the central axis, and the deformation direction of the elastic lower locking tooth buckle is downward and perpendicular to the central axis. When the elastic upper locking tooth buckle and the elastic lower locking tooth buckle are buckled, both of them generate a pulling force in the opposite direction to reset the buckle, thereby locking the buckle and achieving an anti-bounce effect. When unlocking, the unlocking is performed by the upper and lower misalignment operation of the elastic upper locking tooth buckle and the elastic lower locking tooth buckle, and the upper and lower misalignment directions are parallel to the central axis direction, thereby achieving an unlocking effect.

[0068] The needle holder controlled by a spring structure and the needle holder controlled by a spring structure are universal due to their symmetrical structural design. During use, they can be operated without distinguishing between the left and right hands, and can cover more usage habits and usage scenarios.

[0069] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A medical needle holder, characterized in that: It includes: A first handle (101), a fixed holding rod (102), a movable holding rod (103), a central axis (104), a clamping portion (105), a second handle (401), and an elastic locking device; The fixed holding rod connected to the first handle and the movable holding rod connected to the second handle rotate through the central axis to clamp the suture needle through the clamping part; A first sawtooth is arranged on the inner side of the lower part of the fixed holding rod, and a second sawtooth meshing with the first sawtooth is arranged on the inner side or near the lower part of the movable holding rod, and an elastic locking device is arranged at the second sawtooth, which is pressed tightly at the meshing part of the first and second sawtooths; The locking directions (303) of the first and second saw teeth are perpendicular to the central axis direction (301); In the elastic locking device, the inverted tooth (112) is arranged as a first saw tooth on the inner side of the fixed holding rod, the movable locking tooth unit is connected to the movable holding rod via a locking tooth rotating shaft (106), the movable locking tooth unit is Y-shaped and comprises a movable locking tooth (113), an unlocking pressure rod (107), and an unlocking push rod (108), the movable locking tooth serves as a second saw tooth, when the first and second saw teeth are meshed, the unlocking pressure rod partially overlaps with the movable holding rod, the top end of the unlocking pressure rod is located outside the movable holding rod, the unlocking push rod partially overlaps with the second handle, the top end of the unlocking push rod does not extend beyond the outside of the second handle, the inner side of the second handle is provided with a spring sheet contact platform (111), the fixed portion of the spring sheet (110) is fixed to the movable locking tooth via a spring sheet fixing shaft (114), and the movable portion of the spring sheet contacts the spring sheet contact platform.

2. The medical needle holder according to claim 1, characterized in that: A grip stabilizing rod (109) is provided on the outer side of the second handle.

3. The medical needle holder according to claim 2, characterized in that: The spring sheet contact platform is in contact with the lower portion of the movable portion of the spring sheet.

4. The medical needle holder according to claim 3, characterized in that: The movable holding rod is provided with a movable holding rod groove (1031), and the movable locking tooth (113) is provided with a movable locking tooth groove (1131). The movable holding rod groove (1031) and the movable locking tooth groove (1131) are engaged with each other, the inverted tooth (112) and the movable locking tooth (113) are located on the same meshing surface, and the locking direction (303) is perpendicular to the central axis direction (301).

5. The medical needle holder according to claim 4, characterized in that: The first handle, the second handle, the fixed holding rod, the movable holding rod, the unlocking pressure rod, the unlocking push rod, the holding stabilizing rod, the inverted teeth, and the movable locking teeth are all made of stainless steel, titanium alloy, or magnesium alloy, and the spring sheet is made of carbon steel, alloy steel, or titanium alloy.

6. The working method of the medical needle holder according to claim 5, characterized in that: When the needle holder is smaller than 16 cm, the following steps are performed: (1) Place the medical needle holder in an autoclave for sterilization; (2) Open the movable holding rod and the fixed holding rod, place the surgical suture needle in the clamping part, and use your fingers or palms to clamp the first handle and the second handle inward until the inverted teeth engage with the movable locking teeth; (3) Place the needle holder in a safe space, push the unlocking lever inward, or push the unlocking push rod outward to separate the inverted teeth from the movable locking teeth, and remove the surgical suture needle; (4) End.

Images