CN113243953B - Surgical needle holding forceps - Google Patents
Surgical needle holding forceps Download PDFInfo
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- CN113243953B CN113243953B CN202110588896.XA CN202110588896A CN113243953B CN 113243953 B CN113243953 B CN 113243953B CN 202110588896 A CN202110588896 A CN 202110588896A CN 113243953 B CN113243953 B CN 113243953B
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- rod
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- piece
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/04—Surgical instruments, devices or methods for suturing wounds; Holders or packages for needles or suture materials
- A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
- A61B17/062—Needle manipulators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/28—Surgical forceps
- A61B17/2812—Surgical forceps with a single pivotal connection
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/0046—Surgical instruments, devices or methods with a releasable handle; with handle and operating part separable
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- Life Sciences & Earth Sciences (AREA)
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- Heart & Thoracic Surgery (AREA)
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- Ophthalmology & Optometry (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a surgical needle holder which comprises a first handle, a second handle, a clamp rod and a clamp head assembly, wherein the second handle is pivoted with the first handle, and the rear end of the clamp rod is fixedly connected with the first handle; the clamp head assembly comprises an upper clamp head, a lower clamp head and a pulling piece, wherein the upper clamp head is in pivot connection with the lower clamp head, the rear end of the lower clamp head is fixedly connected with the front end of the clamp rod, one end of the pulling piece is connected with the rear end of the upper clamp head, the other end of the pulling piece is connected with the second handle, and the pulling piece can move backwards along with the rotation of the second handle so as to drive the upper clamp head to rotate relative to the lower clamp head to be closed; the front end of the lower clamp head is provided with an upward protruding lip part, an angle groove is defined between the lip part and the front end of the lower clamp head, the upper clamp head is provided with a pressing inclined plane, when the upper clamp head is closed, the pressing inclined plane is opposite to the angle groove, and the surgical needle in the angle groove is pressed, so that the surgical needle is pressed and fixed in the angle groove. According to the surgical needle holding forceps, the holding of the surgical needle is more stable and reliable.
Description
Technical Field
The invention relates to surgical instruments, in particular to a surgical needle holder.
Background
Surgical suturing is to perform apposition or rebuild the channel of a tissue or organ which has been cut or traumatically ruptured, and restore the function. Suturing is a basic condition to ensure good healing and is one of the important basic surgical techniques.
The needle holding forceps are used for holding a suture needle to suture various tissues, the needle holding forceps in the related art comprise a lower forceps head and an upper forceps head, the opposite clamping surfaces of the lower forceps head and the upper forceps head are flat surfaces or arc surfaces with slight radians, the needle holding forceps with the structure are unstable in needle clamping, the needle is easy to deflect and shake when touching the tissues, the surgical suture operation is further affected, and the needle is not in a vertical state with the upper forceps head/the lower forceps head after deflection, and the surgical suture operation is also affected.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, the invention aims to propose a surgical needle holder.
To achieve the above object, a surgical needle holder according to an embodiment of the present invention includes:
A first handle;
The second handle is pivoted with the first handle;
The rear end of the clamp rod is fixedly connected with the first handle;
the clamp head assembly comprises an upper clamp head, a lower clamp head and a pulling piece, wherein the upper clamp head is in pivot connection with the lower clamp head, the rear end of the lower clamp head is fixedly connected with the front end of the clamp rod, one end of the pulling piece is connected with the rear end of the upper clamp head, the other end of the pulling piece is connected with the second handle, and the pulling piece can move backwards along with the rotation of the second handle so as to drive the upper clamp head to rotate relative to the lower clamp head to be closed;
The first elastic reset piece is arranged between the lower clamp head and the upper clamp head and is used for providing a first elastic acting force to force the upper clamp head to rotate and open;
the front end of the lower forceps head is provided with an upward protruding lip part, an angle groove is defined between the lip part and the front end of the lower forceps head, the upper forceps head is provided with a pressing inclined plane, when the upper forceps head is closed, the pressing inclined plane is opposite to the angle groove, and the surgical needle in the angle groove is pressed, so that the surgical needle is pressed and fixed in the angle groove.
According to the surgical needle holder provided by the embodiment of the application, the front end of the lower forceps head is provided with the lip part protruding upwards, the corner groove is defined between the lip part and the front end of the lower forceps head, the upper forceps head is provided with the pressing inclined plane, when the upper forceps head is closed, the pressing inclined plane is opposite to the corner groove, and the surgical needle in the corner groove is pressed to be tightly fixed in the corner groove, namely, the surgical needle is accommodated in the corner groove by utilizing the lip part protruding upwards and the corner groove defined by the lower forceps head, so that the surgical needle is not easy to deflect and shake in the corner groove, and on the other hand, the surgical needle is pressed in the corner groove by utilizing the pressing inclined plane opposite to the corner groove on the upper forceps head on the basis that the surgical needle is placed in the corner groove, so that the surgical needle is reliably fixed in the corner groove, and the surgical needle holder can clamp the surgical needle more firmly and reliably, thereby improving the reliability and stability of surgical operation, and higher surgical efficiency.
In addition, the surgical needle holder according to the above embodiment of the present invention may have the following additional technical features:
According to one embodiment of the invention, the surgical needle holder further comprises:
The ejector rod is slidably arranged in the clamp rod, and the front end of the ejector rod extends to the lower clamp head;
The pressure receiving piece is arranged on the ejector rod and is at least partially positioned outside the clamp rod;
And when the second handle rotates to enable the upper forceps head to be closed, the ejection piece can move along with the second handle to push the pressure receiving piece so as to drive the ejector rod to move forwards through the pressure receiving piece, and the surgical needle is pushed into the angle groove.
According to one embodiment of the invention, the surgical needle holder further comprises:
And the second elastic reset piece is arranged between the clamp rod and the ejector rod and is used for providing a second elastic acting force to force the ejector rod to move backwards to release the surgical needle.
According to one embodiment of the invention, the lower clamp head is provided with a top surface, and the front side of the top surface is connected with the corner groove and is in smooth transition;
The top surface is provided with a sliding groove extending to the angle groove along the front-back direction, the front end of the ejector rod is provided with a sliding part in sliding fit with the sliding groove, and the front end of the sliding part is provided with a pushing part;
The upper forceps head is provided with a bottom surface, the bottom surface is provided with a clamping groove, the sliding part protrudes upwards, when the upper forceps head is closed, the upper half part of the sliding part is positioned in the clamping groove, and the estimating part pushes the surgical needle into the angle groove.
According to one embodiment of the invention, a sliding opening is formed in the wall of the clamp rod, and the sliding opening extends along the axial direction of the clamp rod;
The pressure receiving piece is formed into a strip-shaped piece, a preset included angle is formed between the strip-shaped piece and the clamp rod, one end of the strip-shaped piece is bent upwards to form a connecting part, the connecting part penetrates into the clamp rod through the sliding opening and is fixedly connected with the ejector rod, the other end of the strip-shaped piece is bent downwards to form a pressure receiving part, and the pressure receiving part is adjacent to the ejector piece, so that the ejector piece can move along with the second handle to push the pressure receiving part.
According to one embodiment of the invention, a stop part is arranged at the rear end of the ejector rod, the second elastic reset piece is a second compression spring, the second compression spring is sleeved on the ejector rod, one end of the second compression spring abuts against the stop part, and the other end of the second compression spring abuts against the rear end of the clamp rod.
According to one embodiment of the invention, the rear end of the lower binding clip has a shank portion which is threadedly connected to the front end of the binding clip.
According to one embodiment of the invention, the first position of the rear end of the upper binding clip is pivoted with the front end of the rod part;
The surgical needle holder also comprises a sleeve and a connecting rod, wherein the sleeve is slidably arranged in the rod part, the front end of the sleeve is pivoted with one end of the connecting rod, and the other end of the connecting rod is pivoted with a second position of the rear end of the upper forceps head;
The first elastic reset piece is a first compression spring, the first compression spring is arranged in the rod part, one end of the first compression spring is propped against the rod part, and the other end of the first compression spring is propped against the rear end of the sleeve;
the ejector rod passes through the sleeve and extends along the angular groove, and the pulling piece is connected with the sleeve to pull the sleeve to slide backwards.
According to one embodiment of the invention, the first handle is provided with a through groove, and the ejection piece is led out of the through groove and then points to the pressure receiving piece.
According to one embodiment of the invention, the pulling member is a pulling rope, the pulling rope extends axially in the clamp rod, one end of the pulling rope is connected with the sleeve, and the other end of the pulling rope is connected with the second handle.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure of a surgical needle holder according to an embodiment of the present invention;
FIG. 2 is a schematic view of the construction of a binding clip assembly of a surgical needle holder according to an embodiment of the present invention;
FIG. 3 is a partial cross-sectional view of a binding clip assembly of a surgical needle holder according to an embodiment of the present invention;
FIG. 4 is a partial cross-sectional view of a binding clip assembly (including an ejector pin) of a surgical needle holder according to an embodiment of the present invention;
Fig. 5 is an exploded view of a surgical needle holder according to an embodiment of the present invention.
Reference numerals:
10. A first handle;
h101, through grooves;
11. a second handle;
12. An ejector;
20. A clamp lever;
30. a clamp head assembly;
301. an upper clamp head;
s301, pressing an inclined plane;
h301, clamping groove;
302. a lower clamp head;
H302a, corner slots;
H302b, a chute;
s302, a top surface;
303. a lip portion;
304. a stem portion;
31. A sleeve;
32. a connecting rod;
40. A first elastic restoring member;
50. ejector rods;
501. a sliding part;
502. pushing the top;
503. A stopper;
51. a pressure receiving member;
52. And a second elastic restoring member.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below are exemplary and intended to illustrate the present invention and should not be construed as limiting the invention, and all other embodiments, based on the embodiments of the present invention, which may be obtained by persons of ordinary skill in the art without inventive effort, are within the scope of the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The surgical needle holder according to the embodiment of the present invention is described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 5, a surgical needle holder according to an embodiment of the present invention includes a first handle 10, a second handle 11, a clamp bar 20, a clamp head assembly 30, and a first elastic restoring member 40.
Specifically, the first handle 10 and the second handle 11 are convenient for a doctor to hold, the second handle 11 is pivoted with the first handle 10, and the second handle 11 can be rotated relative to the first handle 10 during holding operation.
The rear end of the clamp bar 20 is fixedly connected with the first handle 10, that is, the clamp bar 20 and the first handle 10 are relatively fixed.
The clamp head assembly 30 comprises an upper clamp head 301, a lower clamp head 302 and a pulling member, wherein the upper clamp head 301 is pivotally connected with the lower clamp head 302, the rear end of the lower clamp head 302 is fixedly connected with the front end of the clamp rod 20, one end of the pulling member is connected with the rear end of the upper clamp head 301, the other end of the pulling member is connected with the second handle 11, and the pulling member can move backwards along with the rotation of the second handle 11 so as to drive the upper clamp head 301 to rotate relative to the lower clamp head 302 to be closed.
That is, the upper binding clip 301 and the lower binding clip 302 can rotate relatively, and the pulling member is connected between the upper binding clip 301 and the second handle 11, when the doctor operates the first handle 10 and the second handle 11, the second handle 11 rotates relative to the first handle 10, and when the second handle 11 rotates, the pulling member moves backward, and the pulling member further drives the upper binding clip 301 to rotate downward to be closed with the lower binding clip 302, so as to form a closed state.
The first elastic restoring member 40 is disposed between the lower jaw 302 and the upper jaw 301 to provide a first elastic force to force the upper jaw 301 to rotate and open. That is, when no other external force is interposed, for example, the operation of the second handle 11 is withdrawn, the upper clamp head 301 can be rotated upward and away from the lower clamp head 302 under the reset action of the first elastic reset member 40, so as to restore from the closed state to the open state.
The front end of the lower jaw 302 has an upwardly protruding lip 303, an angular groove H302a is defined between the lip 303 and the front end of the lower jaw 302, the upper jaw 301 has a pressing inclined surface S301, and when the upper jaw 301 is closed, the pressing inclined surface S301 faces the angular groove H302a and presses the surgical needle in the angular groove H302a to press and fix the surgical needle in the angular groove H302 a.
That is, in the present application, an upwardly protruding lip 303 is provided at the front end of the lower jaw 302, and an angle groove H302a is formed at the intersection of the lip 303 and the lower jaw 302, preferably, the angle groove H302a has an angle of about 90 °, the angle groove H302a can be used for the operation needle to be abutted, and the upper jaw 301 is provided with a pressing inclined surface S301. In use, a doctor can operate the first handle 10 and the second handle 11, so that the second handle 11 rotates relatively, and the upper clamp head 301 is pulled to rotate downwards by the pulling member to close, in the closed state, the pressing inclined surface S301 on the upper clamp head 301 is opposite to the angle groove H302a, and presses the surgical needle in the angle groove H302a, so that the surgical needle can be pressed and fixed in the angle groove H302a by using the upper clamp head 301. Preferably, the pressing inclined surface S301 is perpendicular to the angular bisector of the angular groove H302a, so that the operation is directed to be completely pressed in the angular groove H302a and not deflected, and the clamping and fixing effects are better.
According to the needle holder provided by the embodiment of the application, the front end of the lower forceps head 302 is provided with the lip 303 protruding upwards, an angle groove H302a is defined between the lip 303 and the front end of the lower forceps head 302, the upper forceps head 301 is provided with the pressing inclined surface S301, when the upper forceps head 301 is closed, the pressing inclined surface S301 is opposite to the angle groove H302a and presses the surgical needle in the angle groove H302a so as to fix the surgical needle in the angle groove H302a in a pressing manner, that is, in the application, the surgical needle is accommodated in the angle groove H302a by the lip 303 protruding upwards and the angle groove H302a defined by the lower forceps head 302, so that the surgical needle is not easy to deflect and shake in the angle groove H302a, and on the other hand, the surgical needle is pressed in the angle groove H302a by the pressing inclined surface S301 opposite to the angle groove H302a on the upper forceps head 301, so that the surgical needle is reliably fixed in the angle groove H302a, and thus the holding efficiency of the needle holder is improved, and the reliability of the needle holder is further improved.
Referring to fig. 2-5, in some embodiments of the present invention, the surgical needle holder further comprises an ejector rod 50 and a compression member 51, wherein the ejector rod 50 is slidably disposed within the clamp rod 20, and a front end of the ejector rod 50 extends to the lower clamp head 302. The pressure receiving member 51 is provided on the ejector rod and is at least partially located outside the clamp rod 20.
The second handle 11 is provided with an ejector member 12, and when the second handle 11 rotates to close the upper forceps head 301, the ejector member 12 can move along with the second handle 11 to push the pressed member 51, so that the ejector rod is driven to move forwards by the pressed member 51, and the surgical needle is pushed into the angle groove H302 a.
That is, the ejector bar 50 can slide in the axial direction of the clamp bar 20, and the front end of the ejector bar 50 extends to the lower clamp head 302. The ejector member 12 provided on the second handle 11 can rotate along with the second handle 11 to push the pressed member 51 on the ejector rod 50, so that the pressed member 51 can push the ejector rod 50 to move forward after receiving the axial forward action, and thus, the front end of the ejector rod 50 can move towards the angle groove H302 a. In use, the surgical needle is placed on the lower binding clip 302, the ejector rod 50 is moved forward in a linked manner while the upper binding clip 301 is closed downward, and then the front end of the ejector rod 50 is used to push the surgical station into the angular slot H302a, and the pressing inclined surface S301 of the upper binding clip 301 just presses the surgical needle, so that the surgical needle is kept fixed in the angular slot H302 a.
In this embodiment, by arranging the ejector rod 50 in the clamp rod 20 and utilizing the effect of the ejector member 12 on the second handle 11 on the pressure receiving member 51 on the ejector rod 50 when the second handle 11 rotates, the ejector rod 50 can be linked with the upper clamp head 301, that is, when the upper clamp head 301 rotates downward, the ejector rod 50 pushes the surgical needle forward, so that the surgical needle can be reliably and stably fixed in the angular groove H302a, and the problems that the surgical needle is not in the angular groove H302a due to inaccurate placement position of the surgical needle can be prevented.
Referring to fig. 5, in one embodiment of the present invention, the surgical needle holder further comprises a second resilient return member 52, wherein the second resilient return member 52 is disposed between the clamp bar 20 and the ejector bar 50 for providing a second resilient force forcing the ejector bar to move rearward to release the surgical needle.
That is, when no other external force is interposed, for example, a doctor withdraws the operation of the second handle 11, the upper jaw 301 is forced to rotate upwards to be opened under the elastic restoring action of the first elastic restoring member 40, the ejector rod 50 is forced to move backwards under the elastic restoring action of the second elastic restoring member 52, and the front end of the ejector rod 50 can release the surgical needle so as to facilitate the removal of the surgical needle, thus, the automatic switching from the closed state to the open state can be realized, and the ejector rod 50 releases the surgical needle, which is more convenient to use and operate.
Referring to fig. 2 to 4, in one embodiment of the present invention, the lower jaw 302 has a top surface S302, and the front side of the top surface S302 is connected to the corner groove H302a and smoothly transits.
The top surface S302 is provided with a sliding groove H302b extending to the angle groove H302a along the front-back direction, the front end of the ejector rod is provided with a sliding part 501 in sliding fit with the sliding groove H302b, and the front end of the sliding part 501 is provided with a pushing part 502;
the upper forceps head 301 has a bottom surface provided with a clamping groove H301, the sliding portion 501 protrudes upward, when the upper forceps head 301 is closed, the upper half portion of the sliding portion 501 is located in the clamping groove H301, and the estimating portion pushes the surgical needle into the angle groove H302 a.
When the surgical needle holder is used, a surgical needle can be placed on the top surface S302 of the lower clamp head 302, the front end of the ejector rod 50 moves towards the angle groove H302a under the sliding fit of the sliding part 501 and the sliding groove H302b, so that the surgical needle can be pushed into the angle groove H302a by the ejector part 502 protruding upwards from the front end of the ejector rod 50, and the upper clamp head 301 is closed, and as the clamping groove H301 is arranged on the upper clamp head 301, the upper half part of the sliding part 501 is just positioned in the clamping groove H301 when the upper clamp head 301 is closed, so that the surgical needle can be conveniently pushed by the protruding ejector part 502, and on the other hand, the upper half part of the sliding part 501 is positioned in the clamping groove H301, so that the surgical needle can not enter a gap between the upper clamp head 301 and the sliding part 501, but is kept in the angle groove H302a, and the use performance is more reliable.
Referring to fig. 1 and 5, in one embodiment of the present invention, a sliding opening is provided in the wall of the clamp bar 20, and the sliding opening extends along the axial direction of the clamp bar 20.
The pressure receiving member 51 is formed as a strip member, a predetermined angle is formed between the strip member and the clamp rod 20, one end of the strip member is bent upward to form a connecting portion, the connecting portion penetrates into the clamp rod 20 via the sliding opening and is fixedly connected with the ejector rod 50, the other end of the strip member is bent downward to form a pressure receiving portion, and the pressure receiving portion is adjacent to the ejector member 12, so that the ejector member 12 can move along with the second handle 11 to push the pressure receiving portion.
Thus, when the second handle 11 is operated to rotate, the ejector 12 on the second handle 11 can push the pressed part, so that the pressed part 51 generates forward pushing force, and the connecting part of the pressed part 51 is fixedly connected with the ejector rod, so that the pushing force generated by the pressed part 51 acts on the ejector rod 50, thereby driving the ejector rod 50 to move forward, the structure is simple, and the second handle 11 can realize linkage.
Advantageously, the bottom surface of the upper binding clip 301 and the top surface of the upper front head are provided with stripe protrusions, and the stripe protrusions extend along the width directions of the upper binding clip 301 and the lower binding clip 302, so that the surgical needle clamping can be ensured to be firmer and more reliable.
Referring to fig. 5, in one embodiment of the present invention, a stop portion 503 is provided at the rear end of the ejector rod 50, the second elastic restoring member 52 is a second compression spring, the second compression spring is sleeved on the ejector rod 50, one end of the second compression spring abuts against the stop portion 503, and the other end of the second compression spring abuts against the rear end of the clamp rod 20, so that when the second handle 11 is operated, the ejector rod 50 slides upwards, the second compression spring compresses, and when the operation of the second handle 11 is withdrawn, the ejector rod 50 can quickly restore to the backward movement under the restoring action of the second compression spring, and the surgical needle can be quickly released.
Advantageously, the rear end of the lower head 302 has a stem portion 304, said stem portion 304 being threadably connected to the front end of the clamp bar 20, thus facilitating the removable connection between the lower head 302 and the clamp bar 20, and also allowing for replacement of the head assembly 30.
Referring to fig. 2 to 4, in one embodiment of the present invention, the first position of the rear end of the upper jaw 301 is pivotally connected to the front end of the stem 304. The surgical needle holder further comprises a sleeve 31 and a connecting rod 32, wherein the sleeve 31 is slidably arranged in the rod portion 304, the front end of the sleeve 31 is pivoted with one end of the connecting rod 32, and the other end of the connecting rod 32 is pivoted with the second position of the rear end of the upper clamp head 301.
The first elastic restoring element 40 is a first compression spring, which is installed in the rod portion 304, one end of the first compression spring abuts against the rod portion 304, and the other end of the first compression spring abuts against the rear end of the sleeve 31.
Ejector rod 50 extends through sleeve 31 and along angled slot H302a, and the pulling member is coupled to sleeve 31 to pull sleeve 31 to slide rearward.
When the second handle 11 is operated to rotate, the second handle 11 drives the pulling member to move backwards, the pulling member further drives the sleeve 31 to move backwards, the sleeve 31 further drives the connecting rod 32 to move, and the connecting rod 32 further drives the upper clamp head 301 to rotate downwards, so that the upper clamp head 301 is driven to be closed. When the operation of the second handle 11 is withdrawn, the elastic restoring action of the first compression spring forces the sleeve 31 to move forwards, the sleeve 31 drives the connecting rod 32 to move, the connecting rod 32 further drives the upper clamp head 301 to move upwards to open, thus realizing the opening drive of the upper clamp head 301, having simple structure, stable and reliable closing and opening drive of the upper clamp head 301,
Preferably, the first handle 10 is provided with a through slot H101, and the ejector 12 is led to the compression member 51 after penetrating from the through slot H101, so that the ejector 12 is convenient to apply a pushing force to the compression member 51 along with the movement of the second handle 11, the structure is relatively simple, and the ejector 12 moves reliably under the guidance of the through slot H101.
Advantageously, the pulling element is a pull cord (not shown) which extends axially inside the jaw bar 20 and has one end connected to the sleeve 31 and the other end connected to the second handle 11, so that the structure is relatively simpler and facilitates the arrangement of the pull cord inside the jaw bar 20.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (7)
1. A surgical needle holder, comprising:
A first handle;
The second handle is pivoted with the first handle;
The rear end of the clamp rod is fixedly connected with the first handle;
the clamp head assembly comprises an upper clamp head, a lower clamp head and a pulling piece, wherein the upper clamp head is in pivot connection with the lower clamp head, the rear end of the lower clamp head is fixedly connected with the front end of the clamp rod, one end of the pulling piece is connected with the rear end of the upper clamp head, the other end of the pulling piece is connected with the second handle, and the pulling piece can move backwards along with the rotation of the second handle so as to drive the upper clamp head to rotate relative to the lower clamp head to be closed;
The first elastic reset piece is arranged between the lower clamp head and the upper clamp head and is used for providing a first elastic acting force to force the upper clamp head to rotate and open;
the front end of the lower forceps head is provided with an upward protruding lip part, an angle groove is defined between the lip part and the front end of the lower forceps head, the upper forceps head is provided with a pressing inclined plane, when the upper forceps head is closed, the pressing inclined plane is opposite to the angle groove, and the surgical needle in the angle groove is pressed to press and fix the surgical needle in the angle groove;
The surgical needle holding forceps further comprise an ejector rod and a pressure receiving piece, wherein the ejector rod is slidably arranged in the forceps rod, and the front end of the ejector rod extends to the lower forceps head; the compression piece is arranged on the ejector rod and at least partially positioned outside the clamp rod;
The second handle is provided with an ejection piece, and when the second handle rotates to enable the upper forceps head to be closed, the ejection piece can move along with the second handle to push the pressure receiving piece so as to drive the ejector rod to move forwards through the pressure receiving piece, and the surgical needle is pushed into the angle groove;
the surgical needle holder further comprises a second elastic reset piece, wherein the second elastic reset piece is arranged between the clamp rod and the ejector rod and is used for providing a second elastic acting force to force the ejector rod to move backwards to release the surgical needle;
The wall of the clamp rod is provided with a sliding opening, and the sliding opening extends along the axial direction of the clamp rod; the pressure receiving piece is formed into a strip-shaped piece, a preset included angle is formed between the strip-shaped piece and the clamp rod, one end of the strip-shaped piece is bent upwards to form a connecting part, the connecting part penetrates into the clamp rod through the sliding opening and is fixedly connected with the ejector rod, the other end of the strip-shaped piece is bent downwards to form a pressure receiving part, and the pressure receiving part is adjacent to the ejector piece, so that the ejector piece can move along with the second handle to push the pressure receiving part.
2. The surgical needle holder of claim 1, wherein the lower head has a top surface, the front side of the top surface being joined to the angular groove and transitioning smoothly;
The top surface is provided with a sliding groove extending to the angle groove along the front-back direction, the front end of the ejector rod is provided with a sliding part in sliding fit with the sliding groove, and the front end of the sliding part is provided with a pushing part;
The upper forceps head is provided with a bottom surface, the bottom surface is provided with a clamping groove, the sliding part protrudes upwards, when the upper forceps head is closed, the upper half part of the sliding part is positioned in the clamping groove, and the pushing part pushes the surgical needle into the angle groove.
3. The needle holder according to claim 1, wherein a stop portion is provided at a rear end of the ejector rod, the second elastic restoring member is a second compression spring, the second compression spring is sleeved on the ejector rod, one end of the second compression spring abuts against the stop portion, and the other end of the second compression spring abuts against a rear end of the clamp rod.
4. A surgical needle holder according to claim 1, wherein the rear end of the lower head has a shank portion which is threadedly connected to the front end of the jaw shank.
5. The surgical needle holder of claim 4, wherein the first position of the rear end of the upper binding clip is pivotally connected to the front end of the shaft;
The surgical needle holder also comprises a sleeve and a connecting rod, wherein the sleeve is slidably arranged in the rod part, the front end of the sleeve is pivoted with one end of the connecting rod, and the other end of the connecting rod is pivoted with a second position of the rear end of the upper forceps head;
The first elastic reset piece is a first compression spring, the first compression spring is arranged in the rod part, one end of the first compression spring is propped against the rod part, and the other end of the first compression spring is propped against the rear end of the sleeve;
the ejector rod passes through the sleeve and extends along the angular groove, and the pulling piece is connected with the sleeve to pull the sleeve to slide backwards.
6. The surgical needle holder according to claim 1, wherein the first handle is provided with a through groove, and the ejector member is directed toward the pressure receiving member after being passed out of the through groove.
7. The surgical needle holder of claim 5, wherein the pulling member is a pull cord extending axially within the clamp bar, and wherein one end of the pull cord is connected to the cannula and the other end of the pull cord is connected to the second handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588896.XA CN113243953B (en) | 2021-05-28 | 2021-05-28 | Surgical needle holding forceps |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588896.XA CN113243953B (en) | 2021-05-28 | 2021-05-28 | Surgical needle holding forceps |
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| CN113243953A CN113243953A (en) | 2021-08-13 |
| CN113243953B true CN113243953B (en) | 2024-05-28 |
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| CN202110588896.XA Active CN113243953B (en) | 2021-05-28 | 2021-05-28 | Surgical needle holding forceps |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115054299A (en) * | 2022-05-11 | 2022-09-16 | 中南大学湘雅三医院 | Hernia suture operation forceps set |
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| CN215384298U (en) * | 2021-05-28 | 2022-01-04 | 北京大学深圳医院 | Needle holding forceps for operation |
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| JPH0984804A (en) * | 1995-09-20 | 1997-03-31 | Olympus Optical Co Ltd | Coagulation forceps fitted with cutting-off function |
| WO1998027860A2 (en) * | 1996-12-20 | 1998-07-02 | Garfield Development Corporation | Suture needle grasping and manipulating device |
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| CN113243953A (en) | 2021-08-13 |
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