CN210228228U

CN210228228U - Needle holder

Info

Publication number: CN210228228U
Application number: CN201920761831.9U
Authority: CN
Inventors: Guoxi Gao; 高国玺; Shaoping Yao; 姚绍平
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-04-03
Anticipated expiration: 2029-05-24

Abstract

The embodiment of the utility model discloses needle holder belongs to medical instrument technical field, and it includes through articulated two bodies together of articulated shaft, be located on the body the articulated shaft front end is equipped with holds needle portion, lie in on the body the rear end of articulated shaft is equipped with handheld portion, every be located on the body all demountable installation has a blade, two between articulated shaft and the handheld portion crisscross setting and two from top to bottom of blade the cutting part of blade sets up relatively. The embodiment of the utility model provides a solve needle holder and the inconvenient problem of thread trimming device separation, operation among the prior art, the wide application is sewed up in the operation.

Description

Needle holder

Technical Field

The embodiment of the utility model relates to the technical field of medical equipment, in particular to a needle holder.

Background

The needle holder is widely used in the process of suturing a clinical operation wound, the structure of the needle holder is similar to that of a clamping forceps, the needle holder comprises two bodies which are hinged together through a hinged shaft, a needle holding part for clamping a suture needle is arranged at the front end of the hinged shaft on each body, a hand-held part convenient for personnel to operate is arranged at the rear end of the hinged shaft on each body, when the needle holder is operated in the prior art, one person is usually needed to suture, the other person is needed to cut a thread, when the needle holder is sutured by one person, the scissors are needed to be repeatedly replaced to cut the thread, the number of surgical instruments is increased; and when the cutting edge of the scissors is passivated, the scissors need to be replaced or ground again, and the whole pair of scissors needs to be replaced during replacement, so that the cost of the medical instrument is high.

Therefore, in the technical field of medical devices, there is still a need for research and improvement on needle holders, which is also a focus and emphasis in the technical field of medical devices at present and is the starting point for the completion of the present invention.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a needle holder to solve the problem that the needle holder and the thread trimming device are separated and inconvenient to operate in the prior art.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

according to the embodiment of the utility model, a needle holder is provided, include two bodies together articulated through the articulated shaft, lie in on the body the articulated shaft front end is equipped with holds needle portion, lie in on the body the rear end of articulated shaft is equipped with handheld portion, every lie in on the body all demountable installation has a blade, two between articulated shaft and the handheld portion crisscross setting and two from top to bottom of blade the cutting part of blade sets up relatively.

Furthermore, the body is provided with a groove matched with the blade, and the blade is fixedly arranged in the groove of the body through a screw.

Furthermore, a kidney-shaped groove is formed in the blade, and the screw is arranged in the kidney-shaped groove.

Furthermore, a through hole for accommodating the blade is formed in the body, the blade is embedded in the through hole, a cam driven by a driving shaft is rotatably mounted in the through hole, and the outer edge of the cam abuts against the blade.

Furthermore, extension springs are arranged on two sides of the cam in the through hole, one end of each extension spring is fixed on the corresponding blade, and the other end of each extension spring is fixed on the corresponding body.

Furthermore, the driving shaft is inserted into the body, a regular polygon center hole is formed in the center of the cam, a convex shoulder matched with the regular polygon center hole is arranged on the driving shaft, a positioning shaft shoulder is arranged at one end, extending out of the body, of the driving shaft, a plurality of positioning holes are formed in the positioning shaft shoulder, and a positioning pin is arranged between the positioning shaft shoulder and the body.

Furthermore, limiting bearings are arranged on two sides of the cam in the through hole.

The embodiment of the utility model provides a have following advantage:

(1) the embodiment of the utility model provides an not only increased the blade on needle holder, the intraoperative individual operation can be convenient completion sew up and cut line, the blade can be installed and dismantle on the body moreover, can change after the blade passivation, and needn't change whole surgical instruments, reduced use and maintenance cost.

(2) The blade is provided with the kidney-shaped groove, and the screw is arranged in the kidney-shaped groove so as to adjust the length of the blade extending out of the body.

(3) Because the body is provided with the cam driven by the driving shaft to adjust the extension amount of the blade, when the extension amount of the blade needs to be adjusted, the positioning pin can be pulled out, the driving shaft is rotated to adjust the blade to a proper position, and then the positioning pin is inserted, so that the operation is convenient and fast, and the adjustment time is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a schematic view of the installation of a blade in embodiment 2 of the present invention;

fig. 3 is a schematic view of the installation of the blade in embodiment 3 of the present invention;

FIG. 4 is a left side schematic view of FIG. 3;

in the figure: 1. the needle-holding device comprises a body, 2, a needle-holding part, 3, a hand-holding part, 4, a hinge shaft, 5, a blade, 6, a screw, 7, a kidney-shaped groove, 8, a cam, 9, a driving shaft, 901, a convex shoulder, 902, a positioning shaft shoulder, 903, a positioning hole, 10, a tension spring, 11, a positioning pin, 12 and a limiting bearing.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present specification, the terms "front", "rear", "left", "right", "inner", "outer" and "middle" are used for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes.

Example 1:

as shown in fig. 1, the embodiment of the present invention provides a needle holder, include two bodies 1 hinged together through an articulated shaft 4, the front end of the articulated shaft 4 on the body 1 is equipped with a needle holding portion 2, the rear end of the articulated shaft 4 on the body 1 is equipped with a hand-holding portion 3, the blade 5 can be demountably mounted between the articulated shaft 4 and the hand-holding portion 3 on each body 1, the shape of the blade 5 can be similar to a rectangle or a trapezoid, no specific limitation is made here, the upper and lower staggered arrangement of the two blades 5 and the relative arrangement of the cutting portions of the two blades 5 form a shearing included angle between the two blades 5, so as to cut off a suture, and the separation of the needle holding portion 2 and the blades 5 avoids the mutual influence of the needle holding portion 2 and scissors.

When in use, after the operator finishes suturing, the operator does not need to replace the instrument, the blade 5 on the needle holder can be directly used for cutting the suture line, the number of thread cutting personnel is not increased, the investment of medical personnel is reduced, and the burden and the excessive consumption of the disinfection of the surgical instrument are reduced.

The embodiment of the utility model provides an not only increased blade 5 on needle holder, intraoperative individual operation can be convenient completion sew up and cut line, and blade 5 demountable installation can conveniently be changed after blade 5 is blunt on body 1 moreover, and needn't all change surgical instruments, has reduced use and maintenance cost.

Example 2:

the embodiment of the utility model provides a needle holder, its structure is the same basically with embodiment 1, and its difference lies in, on embodiment 1's basis, has made following improvement, has further improved its performance:

as shown in fig. 2, the body 1 is provided with a groove adapted to the blade 5, and the blade 5 is fixedly mounted in the groove of the body 1 by a screw 6. The blade 5 is provided with a kidney-shaped groove 7, and the screw 6 is arranged in the kidney-shaped groove 7 so as to adjust the length of the blade 5 extending out of the body 1.

The embodiment of the utility model provides an use screw 6 to fix blade 5 in the recess, not only the location is firm, but also can be through the length that 5 stretches out of the 7 adjustment blades in kidney slot on blade 5, satisfied the quick cut-off of different thickness stylolite.

Example 3:

as shown in fig. 3 and 4, the body 1 is provided with a through hole for accommodating the blade 5, the blade 5 is embedded in the through hole, a cam 8 driven by a driving shaft 9 is rotatably mounted in the through hole, and the outer edge of the cam 8 abuts against the blade 5.

The both sides that lie in cam 8 in the through-hole all are equipped with extension spring 10, and extension spring 10 one end is fixed in on blade 5, and on the other end was fixed in body 1, under extension spring 10 effect, the tip of blade 5 was leaned on the outer fringe of cam 8 all the time for blade 5 stability is higher in the use.

The driving shaft 9 is inserted into the body 1, a regular polygon center hole is formed in the center of the cam 8, the center hole is generally set to be a regular quadrangle or a regular hexagon, a shoulder 901 matched with the regular polygon center hole is formed in the driving shaft 9, a positioning shoulder 902 is arranged at one end, extending out of the body 1, of the driving shaft 9, a plurality of positioning holes 903 are formed in the positioning shoulder 902, and a positioning pin 11 is arranged between the positioning shoulder 902 and the body 1. When the extension amount of the blade 5 needs to be adjusted, the positioning pin 11 can be pulled out, the driving shaft 9 is rotated, the blade 5 is adjusted to a proper position, and then the positioning pin 11 is inserted, so that the operation is convenient and fast, and the adjustment time is saved.

The two sides of the cam 8 in the through hole are provided with the limiting bearings 12, the cam 8 can be clamped between the limiting bearings 12, the cam 8 is prevented from shaking, and the use performance is improved.

The embodiment of the utility model provides a blade 5 inlays the dress in the through-hole for blade 5 fixes a position more firmly, and can drive cam 8 through drive shaft 9 and rotate and adjust the length that blade 5 stretches out body 1, has satisfied the quick cut-off of different thickness stylolite.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a needle holder, includes two bodies (1) articulated together through articulated shaft (4), lie in on body (1) articulated shaft (4) front end is equipped with holds needle portion (2), lie in on body (1) the rear end of articulated shaft (4) is equipped with handheld portion (3), its characterized in that, every lie in on body (1) all demountable installation has blade (5), two between articulated shaft (4) and handheld portion (3) blade (5) crisscross setting and two from top to bottom the cutting part of blade (5) sets up relatively.

2. The needle holder according to claim 1 characterized in that the body (1) is provided with a groove adapted to the blade (5), and the blade (5) is fixedly mounted in the groove of the body (1) by a screw (6).

3. The needle holder according to claim 2 characterized in that said blade (5) is provided with a kidney slot (7) and said screw (6) is provided in said kidney slot (7).

4. The needle holder according to claim 1 characterized in that the body (1) is provided with a through hole for accommodating the blade (5), the blade (5) is embedded in the through hole, a cam (8) driven by a driving shaft (9) is rotatably mounted in the through hole, and the outer edge of the cam (8) abuts against the blade (5).

5. Needle holder according to claim 4, characterized in that tension springs (10) are arranged in the through hole on both sides of the cam (8), one end of each tension spring (10) is fixed on the blade (5) and the other end is fixed on the body (1).

6. The needle holder according to claim 4 or 5, characterized in that the drive shaft (9) is inserted into the body (1), a regular polygonal central hole is formed in the center of the cam (8), a shoulder (901) matched with the regular polygonal central hole is formed in the drive shaft (9), a positioning shoulder (902) is formed in one end of the drive shaft (9) extending out of the body (1), a plurality of positioning holes (903) are formed in the positioning shoulder (902), and a positioning pin (11) is arranged between the positioning shoulder (902) and the body (1).

7. Needle holder according to claim 6, characterized in that limiting bearings (12) are provided in the through hole on both sides of the cam (8).