CN217611207U - Needle-holding wire-cutting pliers - Google Patents

Needle-holding wire-cutting pliers Download PDF

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Publication number
CN217611207U
CN217611207U CN202221928513.5U CN202221928513U CN217611207U CN 217611207 U CN217611207 U CN 217611207U CN 202221928513 U CN202221928513 U CN 202221928513U CN 217611207 U CN217611207 U CN 217611207U
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forceps
locking
handles
needle
holding
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CN202221928513.5U
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Chinese (zh)
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陈科斌
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Beijing Rongchuang Huizhi Technology Co ltd
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Beijing Rongchuang Huizhi Technology Co ltd
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Abstract

The embodiment of the application provides a needle-holding wire cutting nipper, includes: two forceps handles; the clamp handles are sequentially provided with a clamping part, a connecting part and a holding part along the direction from front to back, and the two clamp handles are crossed and rotationally connected at the connecting part; the clamping parts are provided with clamping surfaces, and the clamping surfaces on the two clamp handle clamping parts are oppositely arranged; when the two forceps handles are in a closed state, the clamping surfaces on the clamping parts of the two forceps handles can clamp the suture needle; one side of one forceps handle connecting part is provided with a wire accommodating groove, the opening direction of the wire accommodating groove faces forwards, and a preset angle is formed between the wire accommodating groove and the front central line and the rear central line of the forceps handle in a closed state; the wire accommodating groove penetrates through the connecting part along the thickness direction; a blade part is arranged on the same side of the other forceps handle connecting part, and the blade part corresponds to the position of the wire accommodating groove; in the closing process of the two forceps handles, the blades cut off the suture in the thread accommodating groove. The needle-holding thread cutting nippers provided by the embodiment of the application can clamp a suture needle, can cut off a suture thread, and has high convenience.

Description

Needle-holding wire-cutting pliers
Technical Field
The application relates to the technical field of medical tools, in particular to a pair of needle-holding wire cutting pliers.
Background
The surgical suture forceps are an indispensable tool in surgical operations, and doctors clamp suture needles by holding the suture forceps to suture incisions. After suturing, a doctor needs to put down the suturing forceps and then take up the surgical suture scissors to cut off the suture line, and the process is inconvenient; or the suture line can be cut off by another doctor holding the surgical suture scissors, and the operation needs to be matched by a plurality of people, so that the convenience is poor.
Disclosure of Invention
In order to solve one of the technical defects, the embodiment of the application provides a needle-holding wire cutting nipper.
According to a first aspect of embodiments of the present application, there is provided a needle-holding wire clippers comprising: two forceps handles;
the clamp handles are sequentially provided with a clamping part, a connecting part and a holding part along the direction from front to back, and the two clamp handles are crossed and rotationally connected at the connecting part;
the clamping parts are provided with clamping surfaces, and the clamping surfaces on the two clamp handle clamping parts are oppositely arranged; when the two forceps handles are in a closed state, the clamping surfaces on the clamping parts of the two forceps handles can clamp the suture needle;
one side of the forceps handle connecting part is provided with a wire accommodating groove, and the opening direction of the wire accommodating groove faces forwards and a preset angle is formed between the wire accommodating groove and the front central line and the rear central line of the forceps handle in a closed state; the wire accommodating groove penetrates through the connecting part along the thickness direction;
a blade part is arranged on the same side of the other forceps handle connecting part, and the blade part corresponds to the position of the wire accommodating groove; in the closing process of the two forceps handles, the blades cut off the suture in the thread accommodating groove.
According to the needle-holding wire-cutting nippers, the surface of the holding part departing from the holding part of the other nipper handle is a stress surface for contacting with a force application object; the two forceps handles are close to each other along the thickness direction of the holding part so that the forceps handles are in a closed state, or are far away from each other so that the forceps handles are in an open state.
According to the needle-holding wire cutting nippers, the nipper handle provided with the blade part is provided with two process grooves, and the opening directions of the process grooves face to the side surface of the connecting part; the part between the two process grooves is provided with the blade part.
The needle-holding wire cutting nippers further comprise locking mechanisms which are respectively arranged on the two nipper handles and used for locking the two nipper handles when the two nipper handles are closed.
The needle-holding wire-cutting nipper as described above, the locking mechanism includes:
the first locking piece is arranged on the inner side surface of one forceps handle; the first locking member has a locking protrusion;
the second locking piece is arranged on the inner side surface of the other forceps handle; the second locking piece has a locking groove, and the locking convex part is received in the locking groove to lock the two clamp handles.
According to the needle-holding wire clippers, the locking convex part extends along the length direction of the handle holding part of the clipper handle, and the outer peripheral surface of the locking convex part is a cambered surface;
one end of the second locking piece along the length direction of the holding part is provided with a V-shaped locking groove, and the opening direction of the locking groove faces to the pliers handle where the second locking piece is located; the outer surface of the locking groove is an arc surface.
According to the needle-holding wire clippers, the first locking piece and the second locking piece are arranged from front to back, the locking convex part is arranged at the rear end of the first locking piece, and the locking groove is arranged at the front end of the second locking piece.
The needle-holding wire-cutting nipper as described above, said nipper handle further includes: the elastic part is arranged at the rear end of the holding part; the elastic part generates deformation and accumulates elastic potential energy when the holding parts of the two forceps handles are close to each other.
According to the needle-holding wire cutting nippers, the elastic part is in a strip sheet shape, the front end of the elastic part is connected to the holding part, and the rear end of the elastic part is abutted to the elastic part of the other nipper handle; the middle parts of the elastic parts of the two forceps handles are arched towards the direction away from each other to form an arc shape.
According to the needle-holding wire cutting nippers, the rear end of one nipper handle elastic part is provided with the abutting hole; the rear end of the other forceps handle elastic part is provided with an abutting convex part; the abutting convex part is inserted and limited in the abutting hole.
According to the technical scheme provided by the embodiment of the application, two forceps handles are adopted, each forceps handle is sequentially provided with a clamping part, a connecting part and a holding part from front to back, and the two forceps handles are crossed and rotationally connected at the connecting part; the clamping parts are provided with clamping surfaces, and the clamping surfaces on the two clamp handle clamping parts are oppositely arranged; when the two forceps handles are in a closed state, the clamping surfaces on the clamping parts of the two forceps handles can clamp the suture needle; one side of one of the forceps handle connecting parts is provided with a wire accommodating groove, the opening direction of the wire accommodating groove faces forwards, and a preset angle is formed between the wire accommodating groove and the front central line and the rear central line of the forceps handle in a closed state; the wire accommodating groove penetrates through the connecting part along the thickness direction; a blade part is arranged on the same side of the connecting part of the other forceps handle, and the blade part corresponds to the position of the wire accommodating groove; the suture lines in the line containing grooves are cut off by the blade parts in the closing process of the two forceps handles, so that the suture lines can be clamped and sutured aiming at wounds by one needle-holding and thread-cutting forceps, the suture lines can be cut off, the operation of suturing and cutting off the suture lines can be carried out by a single person with one hand, and the needle-holding and thread-cutting forceps have high convenience.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural view of a needle-holding wire cutting nipper provided in an embodiment of the present application;
fig. 2 is a schematic view of another angle structure of the needle-holding wire-cutting pliers provided in the embodiment of the present application;
FIG. 3 is a top view of a needle-holding wire-cutting nipper according to an embodiment of the present disclosure in an open state;
FIG. 4 is a top view of a needle-holding wire-cutting nipper provided in the embodiments of the present application in a closed state;
FIG. 5 is a side view of a needle-holding thread trimmer provided in an embodiment of the present application;
FIG. 6 is an enlarged partial view of FIG. 3;
FIG. 7 is an exploded view of needle-holding wire clippers provided in accordance with embodiments of the present disclosure;
fig. 8 is a schematic structural diagram of a second locking element in the needle-holding wire-cutting pliers provided in the embodiment of the present application;
fig. 9 is a schematic view of another angle structure of the second locking element in the needle-holding wire-cutting pliers according to the embodiment of the present application;
FIG. 10 is a first schematic view illustrating a locking engagement between a first locking member and a second locking member of the needle-holding wire-cutting nippers according to the embodiment of the present application;
fig. 11 is a second schematic view illustrating locking engagement between a first locking member and a second locking member in the needle-holding wire clippers according to the embodiment of the present disclosure;
fig. 12 is a third schematic view illustrating locking engagement between the first locking member and the second locking member in the needle-holding wire-cutting nippers according to the embodiment of the present application.
Reference numerals are as follows:
1-a clamping portion; 11-a clamping surface; 12-a wear resistant layer; 2-a connecting part; 21-a wire accommodating groove; 22-a blade; 23-a process tank; 3-a holding part; 31-a stress surface; 4-an elastic portion; 41-butting hole; 42-an abutment projection;
5-a fastener; 61-a first locking member; 611-locking projections; 612-a first connection; 613-first transition; 62-a second locking element; 621-locking groove; 622-a second connection; 623-a second transition; 624-locking groove portion.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The embodiment provides a hold needle thread trimmer, can be used for the in-process centre gripping suture needle of wound suturing, is convenient for sew up the wound, and when sewing up, uses this hold needle thread trimmer to can also cut off the stylolite, and this in-process need not change the operation instrument, also need not other people to help, has higher convenience.
As shown in fig. 1 to fig. 6, the needle-holding thread cutting nippers provided in the present embodiment include: two forceps handles. The forceps handle has a clamping portion 1, a connecting portion 2, and a holding portion 3 in this order in the front-to-rear direction. Taking the view angle of fig. 3 as an example, the left end of fig. 3 is the front end of the forceps handle, and the right end of fig. 3 is the rear end of the forceps handle. The two forceps handles are crossed and rotatably connected at the connecting part 2. So that the gripping portions 1 of the two handles are brought closer to each other when the gripping portions 3 of the two handles are brought closer to each other. In use, the holding portions 3 of the two handles are close to each other to a closed state, and the holding portions 3 of the two handles are far away from each other to an open state.
The clamping part 1 is provided with a clamping surface 11, and the clamping surfaces 11 on the two forceps handle clamping parts 1 are oppositely arranged. The clamping surfaces 11 on the two jaw shank clamping portions 1 can clamp the suture needle when the two jaw shanks are in a closed state.
One side of one of the forceps handle connecting parts 2 is provided with a wire accommodating groove 21, the opening direction of the wire accommodating groove 21 faces forward, and a preset angle is formed between the wire accommodating groove 21 and the front and rear central lines of the forceps handles in a closed state, wherein the preset angle can be (0 degrees and 60 degrees), namely, the opening of the wire accommodating groove 21 is inclined forward, the wire accommodating groove 21 penetrates through the connecting part 2 along the thickness direction, and the front and rear central lines of the forceps handles in the closed state are the central lines in the left and right directions shown in fig. 4 (such as dot-and-dash lines in fig. 4).
The other forceps handle connecting part 2 is provided with a blade part 22 at the same side, and the blade part 22 corresponds to the position of the wire accommodating groove 21. During the closing process of the two forceps handles, the blade part 22 cuts off the suture in the thread accommodating groove 21.
When the needle-holding wire-cutting nipper is used, an operator holds the holding part 3 by hand and places the clamping parts 1 at two sides of a suture needle. The grasping portions 3 of the two handles are brought close to each other, and the clamp portion 1 clamps the suture needle to perform a suturing operation. After the suturing is completed, the operator releases the grip 3, moves the grips 3 of the two handles away from each other, and releases the suture needle from the clamp 1. Then, the needle-holding thread-cutting pliers are continuously held by hands, the thread containing groove 21 is close to the area needing to be cut in the suture thread until the area needing to be cut in the suture thread enters the thread containing groove 21, at the moment, the holding parts of the two plier handles are close to each other, and the suture thread is cut through the matching of the blade part 22 and the thread containing groove 21.
According to the technical scheme provided by the embodiment, two forceps handles are adopted, each forceps handle is sequentially provided with a clamping part, a connecting part and a holding part from front to back, and the two forceps handles are crossed and rotatably connected at the connecting part; the clamping parts are provided with clamping surfaces, and the clamping surfaces on the two clamp handle clamping parts are oppositely arranged; when the two forceps handles are in a closed state, the clamping surfaces on the clamping parts of the two forceps handles can clamp the suture needle; one side of one of the forceps handle connecting parts is provided with a wire accommodating groove, the opening direction of the wire accommodating groove faces forwards, and a preset angle is formed between the wire accommodating groove and the front central line and the rear central line of the forceps handle in a closed state; the wire accommodating groove penetrates through the connecting part along the thickness direction; a blade part is arranged on the same side of the other forceps handle connecting part, and the blade part corresponds to the position of the wire accommodating groove; the suture lines in the line containing grooves are cut off by the blade parts in the closing process of the two forceps handles, so that the suture lines can be clamped and sutured aiming at wounds by one needle-holding and thread-cutting forceps, the suture lines can be cut off, the operation of suturing and cutting off the suture lines can be carried out by a single person with one hand, and the needle-holding and thread-cutting forceps have high convenience.
On the basis of the technical scheme, the following modes can be adopted for the rotary connection of the two forceps handle connecting parts 2: as shown in fig. 7, the two forceps handle connecting portions 2 are flat plate structures, and the surfaces which are arranged up and down and are crossed and opposite are flat surfaces. And the connecting part 2 is correspondingly provided with a through hole penetrating through the thickness direction. In the assembling process, the planes of the two clamp handle connecting parts 2 are opposite, the through holes are aligned, and a fastening piece 5 sequentially penetrates through the pin holes of the two clamp handle connecting parts 2 to connect the two clamp handles together and can rotate relatively. The fastener 5 can be a rivet or other riveting member, and can also be a pin or other connecting member.
The clamping surface 11 of the clamping part 1 may be provided with a wear resistant layer 12 having high wear resistance and strength, for example made of tungsten steel. The surface of the wear layer 12 may be provided with a saw-tooth shape for firmly holding a suture needle.
The surface of one forceps handle connecting part 2 facing to the other forceps handle connecting part is a plane, and the surface of the other forceps handle connecting part facing away from the other forceps handle connecting part is an arc surface. The side surface of the connecting part 2 is perpendicular to the plane to form a blade part 22, and the suture can be cut by the blade part 22 pressing against the plane of the other forceps handle connecting part 2.
Further, two process grooves 23 are formed in the handle connecting portion 2 provided with the blade portion 22, and the opening direction of the process grooves 23 faces the side surface of the connecting portion 2. The blade part 22 is arranged at the part between the two process grooves 23, and the process grooves 23 can facilitate processing and grinding of the blade part 22.
After the two forceps handles are clamped, the blade part 22 covers the thread accommodating groove 21, so that the suture thread is prevented from entering the thread accommodating groove 21 by mistake in the suturing process.
For the grip portion 3, a grip structure of a conventional scissors can be adopted, that is: the rear end of the forceps handle is provided with a finger ring, and the fingers of an operator are inserted into the finger ring to tightly hold the forceps handle for operation. Alternatively, the following may be used:
the present embodiment provides an implementation: the grip portion 3 is in the form of an elongated sheet having an inner side surface and an outer side surface perpendicular to the thickness direction thereof. The inner side surfaces of the two forceps holder portions 3 are disposed facing each other, and the outer side surface facing away from the other forceps holder portion 3 serves as a force receiving surface 31 which is in contact with a force application object. The force application object is the fingers of an operator, the operator holds the holding part 3 by hands, and the fingers apply pressure inwards from the stress surface so that the holding parts 3 of the two forceps handles are close to each other along the thickness direction until the forceps handles are in a closed state, or are far away from each other until the forceps handles are in an open state. When the holding parts 3 of the two forceps handles are close to each other, the clamping part 1 is enabled to exert clamping operation or the connecting part 2 is driven to carry out operation of cutting suture.
Furthermore, the forceps handle is also provided with an elastic part 4 which is arranged at the rear end of the holding part 3. The elastic part 4 generates deformation and accumulates elastic potential energy when the holding parts 3 of the two forceps handles are close to each other under external force; when the external force disappears, the elastic potential energy of the elastic part 4 urges the two holding parts 3 away from each other. The elastic part 4 can realize automatic springing of the two forceps handles, an operator does not need to force the holding part 3 to be separated, the labor-saving effect is achieved, and the suture needle is more convenient to loosen.
The specific implementation manner is as follows: the elastic part 4 is in a strip shape and a sheet shape, the front end of the elastic part is connected to the holding part 3, and the rear end of the elastic part is abutted against the elastic part 4 of the other forceps handle. The middle parts of the two forceps handle elastic parts 4 are arched towards the direction away from each other to form an arc shape. The elastic part 4 is equivalent to a spring plate with certain elastic deformation capacity, the rear ends of the elastic part 4 are mutually abutted, so that the connecting part 2, the holding part 3 and the elastic part 4 form a closed structure, the rear ends of the connecting part 2 and the elastic part 4 are used as a connecting and supporting area, the holding part 3 can move, and the elastic part 4 can deform and restore to the original shape.
Furthermore, the rear end of one of the forceps handle elastic parts 4 is provided with an abutting hole 41, the rear end of the other forceps handle elastic part 4 is provided with an abutting convex part 42, and the abutting convex part 42 is inserted and limited in the abutting hole 41, so that the rear ends of the two elastic parts 4 are firmly connected and cannot be separated, the needle-holding and thread-cutting forceps held by an operator in the operation process can be opened and closed for multiple times, and the sewing reliability and efficiency are improved.
Furthermore, the thickness of the holding part 3 is larger than that of the elastic part 4, so that the holding part 3 has higher strength, the deformation is reduced, the clamping force applied by an operator can be borne, the reliability of the holding operation can be improved, and the service life can be prolonged.
The clamping part 1, the connecting part 2 and the holding part 3 can be of an integrally formed structure, and can be made of materials with better corrosion resistance to adapt to various disinfectants, for example, stainless steel, titanium alloy steel and other materials.
On the basis of the technical scheme, the locking mechanisms can be further adopted and are respectively arranged on the two forceps handles and used for locking the two forceps handles when the two forceps handles are closed. The locking mechanism may be a serrated locking mechanism as used with conventional suturing forceps.
Alternatively, as shown in fig. 7 to 10, another embodiment is: the locking mechanism includes: a first locking member 61 and a second locking member 62. The first locking member 61 is disposed on an inner side surface of one of the forceps handles, and the first locking member 61 has a locking protrusion 611. The second locking piece 62 is provided on the inner side surface of the other caliper handle, the second locking piece 62 has a locking groove 621, and the locking protrusion 611 is received in the locking groove 621 to lock the two caliper handles. Unlocking is achieved when the locking protrusion 611 escapes from the locking groove 621.
One specific mode is as follows: the first locking member 61 has a first connecting portion 612, a first transition portion 613, and a locking protrusion 611, and is provided in this order along the longitudinal direction of the caliper shank. The second locking piece 62 has a second connecting portion 622, a second transition portion 623, and a locking groove portion 624, and the locking groove portion 624 is formed with a locking groove 621. The first locking piece 61 and the second locking piece 62 are arranged in tandem such that the locking protrusion 611 corresponds in position to the locking groove 621.
In this embodiment, the first locking member 61 is provided at the front end of the second locking member 62, and the first connecting portion 612, the first transition portion 613 and the locking protrusion 611 are provided in this order from front to rear. The first connecting portion 612 is fixed to the grip portion 3 by rivets or pins. The second connecting portion 622, the second transition portion 623, and the locking groove portion 624 are provided in this order from the rear to the front, and the second connecting portion 622 is fixed to the grip portion 3 by a rivet or a pin.
The locking protrusion 611 extends in the longitudinal direction of the grip 3, and the outer peripheral surface of the locking protrusion 611 is a curved surface. The locking groove 621 is a V-shaped groove, the opening direction of the locking groove 621 faces the handle where the second locking piece 62 is located, and the outer surface of the locking groove 621 is an arc surface.
The use process using the above-described first locking member 61 and second locking member 62 is:
as shown in fig. 3, the needle-holding wire-cutting nipper is in an open state, and the first locking member 61 and the second locking member 62 are away from each other. An operator applies an inward pressing force to the grip portions 3, causing the grip portions 3 of the two forceps handles to approach each other, and the first locking piece 61 and the second locking piece 62 to approach each other until the locking protrusion 611 comes into contact with the outer surfaces of the locking groove portions 624, as shown in fig. 10. Taking the view angle of fig. 10 as an example, the locking protrusion 611 comes into contact with the outer surface of the upper portion of the locking groove 624.
As the inward pressing force continues to be applied to the grip portion 3, the locking protrusion 611 applies a downward pressing force to the locking groove portion 624, so that the second locking piece 62 is elastically deformed and the locking groove portion 624 moves downward. The locking protrusion 611 slides along the surface of the locking groove portion 624 in the opening direction of the locking groove 621, as shown in fig. 11.
When sliding to the opening of the locking groove 621, the downward pressing force applied to the locking groove 624 disappears, the second locking piece 62 rebounds upward, and the locking protrusion 611 enters into the locking groove 621 to achieve locking, as shown in fig. 12. In this state, if an outward pulling force is applied to the grip portion 3, the grip portion 1 can grip the suture needle, and the operator only needs to perform the suture operation without continuously applying a pressing force to the grip portion of the forceps handle, so that the operator can take care of the suture without being distracted by the fact that the suture needle cannot be gripped.
In the unlocking process, an operator applies inward pressing force to the holding parts 3 to make the holding parts 3 of the two forceps handles continuously approach each other, the locking convex part 611 applies pressing force to the inner surface of the lower part of the locking groove 621, meanwhile, the locking groove part 624 elastically deforms towards the bottom of the locking groove 621 until the locking convex part 611 is separated from the locking groove part 624, and the locking groove part 624 moves upwards under the action of elastic force to restore to a free state, so that unlocking is realized; the locking convex portion 611 bypasses from below the locking groove portion 624 and then moves upward to return to the free state.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; may be mechanically, electrically or otherwise in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (10)

1. The utility model provides a needle-holding thread trimmer which characterized in that includes: two forceps handles;
the clamp handles are sequentially provided with a clamping part, a connecting part and a holding part along the direction from front to back, and the two clamp handles are crossed and rotationally connected at the connecting part;
the clamping parts are provided with clamping surfaces, and the clamping surfaces on the two clamp handle clamping parts are oppositely arranged; when the two forceps handles are in a closed state, the clamping surfaces on the clamping parts of the two forceps handles can clamp the suture needle;
one side of the forceps handle connecting part is provided with a wire accommodating groove, and the opening direction of the wire accommodating groove faces forwards and a preset angle is formed between the wire accommodating groove and the front central line and the rear central line of the forceps handle in a closed state; the wire accommodating groove penetrates through the connecting part along the thickness direction;
a blade part is arranged on the same side of the other forceps handle connecting part, and the blade part corresponds to the position of the wire accommodating groove; in the closing process of the two forceps handles, the blades cut off the suture in the thread accommodating groove.
2. The needle-holding wire-cutting nippers as claimed in claim 1, wherein the surface of the holding part facing away from the holding part of the other nipper handle is a force-bearing surface for contacting with a force-applying object; the two forceps handles are close to each other along the thickness direction of the holding part so that the forceps handles are in a closed state, or are far away from each other so that the forceps handles are in an open state.
3. The needle-holding wire-cutting nippers as claimed in claim 1, wherein the nipper handle provided with the blade portion is provided with two process grooves, and the opening direction of the process grooves faces the side surface of the connecting portion; the part between the two process grooves is provided with the blade part.
4. The needle-holding wire-cutting nipper as claimed in claim 1, further comprising locking mechanisms respectively provided on the two nipper handles for locking the two nipper handles when the two nipper handles are closed.
5. The needle-holding wire-cutting pliers of claim 4 wherein the locking mechanism comprises:
the first locking piece is arranged on the inner side surface of one forceps handle; the first locking member has a locking protrusion;
the second locking piece is arranged on the inner side surface of the other forceps handle; the second locking piece is provided with a locking groove, and the locking convex part is received in the locking groove to lock the two clamp handles.
6. The needle-holding wire-cutting pliers of claim 5 wherein the locking protrusion extends along the length of the gripping portion of the pliers handle, and the outer peripheral surface of the locking protrusion is a cambered surface;
one end of the second locking piece along the length direction of the holding part is provided with a V-shaped locking groove, and the opening direction of the locking groove faces to the pliers handle where the second locking piece is located; the outer surface of the locking groove is an arc surface.
7. The needle-holding wire-cutting nipper as claimed in claim 5, wherein the first locking member and the second locking member are arranged from front to back, the locking protrusion is provided at a rear end of the first locking member, and the locking groove is provided at a front end of the second locking member.
8. The needle-holding wire-cutting pliers of claim 1 wherein the pliers handle further comprises: the elastic part is arranged at the rear end of the holding part; the elastic part generates deformation and accumulates elastic potential energy when the holding parts of the two forceps handles are close to each other.
9. The needle-holding wire-cutting nippers as claimed in claim 8, wherein the elastic part is in the shape of a long strip, the front end of the elastic part is connected to the holding part, and the rear end of the elastic part abuts against the elastic part of the other nipper handle; the middle parts of the elastic parts of the two forceps handles are arched towards the direction away from each other to form an arc shape.
10. The needle-holding wire-cutting nippers as claimed in claim 9, wherein the rear end of one of the nipper handle elastic parts is provided with an abutting hole; the rear end of the other forceps handle elastic part is provided with an abutting convex part; the abutting convex part is inserted and limited in the abutting hole.
CN202221928513.5U 2022-07-26 2022-07-26 Needle-holding wire-cutting pliers Active CN217611207U (en)

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