CN111035433A

CN111035433A - Medical forceps

Info

Publication number: CN111035433A
Application number: CN201911334257.XA
Authority: CN
Inventors: 周海榆; 郑少鹏; 廖国青; 黄卢煜; 朱鸿远; 李发升; 林炜欢; 林泽楠; 曾繁俊; 乔贵宾
Original assignee: Guangdong General Hospital Guangdong Academy of Medical Sciences
Current assignee: Guangdong General Hospital Guangdong Academy of Medical Sciences
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-04-21

Abstract

A pair of medical forceps comprises a forceps body, a clamping piece, a forceps piece, a connecting wire and a torsion spring; the clamp body comprises a connecting rod, a first clamping part and a first holding part, wherein the first end of the connecting rod is fixedly connected with the first clamping part, the second end of the connecting rod is fixedly connected with the first holding part, and the connecting rod is arranged in a bent mode; the clamping piece is hinged with the first end of the connecting rod, the clamping piece is hinged with the second end of the connecting rod, the connecting line is connected with the clamping piece and the clamping piece, the clamping piece can swing along with the swinging through swinging the clamping piece, and the clamping piece can be reset through a torsion spring. The connecting rod arranged in a bending way can enable the forceps head and the forceps body of the medical forceps to be relatively bent, so that the medical forceps conform to human engineering and can relatively enlarge the clamping range of the forceps head.

Description

Medical forceps

Technical Field

The invention relates to the field of medical equipment, in particular to a pair of medical forceps.

Background

With the continuous development of medical technology, the minimally invasive concept is more and more emphasized by patients, and therefore, the minimally invasive thoracic surgery is also emphasized and introduced by more and more doctors. Therefore, the application of the minimally invasive operation under the thoracoscope is increasingly wide, and the requirements of matched surgical instruments and applicability are improved.

In the minimally invasive surgery, the wound is small, and the problem that the wound is difficult to reach in some places when the straight forceps are used for stretching into the wound can be caused, so that the operation is hindered.

Disclosure of Invention

Technical problem to be solved

In order to solve the problems, the invention provides the medical forceps which can be relatively and easily clamped to the position where the straight forceps are difficult to clamp, and the clamping range is relatively enlarged.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a pair of medical forceps comprises a forceps body, a clamping piece, a forceps piece, a connecting wire and a torsion spring; the clamp body comprises a connecting rod, a first clamping part and a first holding part, wherein the first end of the connecting rod is fixedly connected with the first clamping part, the second end of the connecting rod is fixedly connected with the first holding part, and the connecting rod is arranged in a bent mode; the first end of the connecting rod is also provided with an installation groove, one end of the clamping piece is provided with a second clamping part, and the other end of the clamping piece is hinged with the connecting rod in the installation groove; one end of the clamp piece is provided with a second holding part, and the other end of the clamp piece is hinged with the second end of the connecting rod; one end of the connecting wire is fixedly connected with one end of the clamping piece far away from the second clamping part, the connecting point is arranged on the end close to the first clamping part, the other end of the connecting wire is fixedly connected with one end of the clamping piece far away from the second holding part, and the connecting point is arranged on the end far away from the first holding part; the torsional spring is sleeved on the hinged shaft of the clamping piece and used for resetting the swinging clamping piece.

Preferably, the connecting rod includes first pole and second pole, and the one end and the second pole fixed connection of first pole, the other end are equipped with first clamping part, and the one end that the first pole was kept away from to the second pole is equipped with first portion of gripping, and first pole is straight to be set up, and the second pole sets up in a bending way relatively first pole, and the angle of contained angle α between second pole and the first pole is 15 to 30 degrees.

Preferably, the face formed between the first and second clip portions is arranged to be curved relative to the first bar at an included angle β of 15 to 30 degrees.

Preferably, the first gripping part is further provided with a first clamping part at one side close to the second gripping part, and the second gripping part is further provided with a second clamping part at one side close to the first gripping part; when the second holding part swings to be close to the first holding part, the first clamping part and the second clamping part are clamped.

Preferably, the first clamping part and the second clamping part are both ratchet structures.

Preferably, a tubular passage is provided in the body of the pliers, and the connecting wire passes through the tubular passage to connect the clamp and the pliers.

Preferably, the medical forceps further comprise a first observation piece, and the first observation piece is detachably mounted at the notch of the mounting groove.

Preferably, the medical forceps further comprise a first elastic connecting piece, one end of the first elastic connecting piece is fixedly connected with one end, away from the second clamping part, of the clamping piece, the connecting point is arranged on the end away from the connecting line, and the other end of the first elastic connecting piece is connected to the upper end of the first observation piece.

Preferably, there are two connection lines.

Preferably, this still include second observation piece and second elastic connector before medical, the one end that the second clamping part was kept away from to the folder is equipped with the barb, the connecting wire is connected in the tail end of barb, be equipped with the viewing aperture on the connecting rod, second observation piece detachably installs on the viewing aperture, the one end fixed connection of second clamping part is kept away from to second elastic connector one end and folder, and the other end is connected in mounting groove notch department.

Advantageous effects

The medical forceps have the beneficial effects that the medical forceps comprise a forceps body, a clamping piece, a forceps piece, a connecting wire and a torsion spring; the clamp body comprises a connecting rod, a first clamping part and a first holding part, wherein the first end of the connecting rod is fixedly connected with the first clamping part, the second end of the connecting rod is fixedly connected with the first holding part, and the connecting rod is arranged in a bent mode; the clamping piece is hinged with the first end of the connecting rod, the clamping piece is hinged with the second end of the connecting rod, the connecting line is connected with the clamping piece and the clamping piece, the clamping piece can swing along with the swinging through swinging the clamping piece, and the clamping piece can be reset through a torsion spring. The connecting rod arranged in a bending way can enable the forceps head and the forceps body of the medical forceps to be relatively bent, so that the medical forceps conform to human engineering and can relatively enlarge the clamping range of the forceps head.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:

FIG. 1 shows an overall block diagram of an embodiment of the present invention;

FIG. 2 shows a jaw portion of an embodiment of the present invention;

FIG. 3 illustrates a grip portion of an embodiment of the present invention;

FIG. 4 is a schematic view of the hinge of the clamp member to the connecting rod;

FIG. 5 shows a partial cross-sectional view of the hinge of the clip to the link;

FIG. 6 is a schematic view of the structure of the joint of the jaw and the connecting rod;

FIG. 7 shows a schematic view of the structure of a first viewing sheet;

FIG. 8 shows a schematic view of included angles α and β;

FIG. 9 illustrates the location of a viewing port in another embodiment of the present invention;

FIG. 10 shows a cross-sectional view of the interface of the clip and the jawset in one embodiment of the present invention;

FIG. 11 shows a comparison of clip swing with and without barbs;

in the figure, 1 clamp body, 2 clamp pieces, 3 clamp pieces, 4 connecting wires, 5 torsion springs, 6 first observation pieces, 7 first elastic connecting pieces, 8 second observation pieces, 9 second elastic connecting pieces, 10 connecting rods, 11 first clamping parts, 12 first holding parts, 101 first rods, 102 second rods, 120 first clamping parts, 20 second clamping parts, 30 second holding parts, 300 second clamping parts, a mounting groove, b barbs and c observation ports are arranged.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached drawings 1-11, a pair of medical forceps comprises a forceps body 1, a clamping piece 2, a forceps piece 3, a connecting wire 4 and a torsion spring 5; the pliers body 1 comprises a connecting rod 10, a first clamping part 11 and a first holding part 12, wherein a first end of the connecting rod 10 is fixedly connected with the first clamping part 11, a second end of the connecting rod 10 is fixedly connected with the first holding part 12, and the connecting rod 10 is arranged in a bent mode; the first end of the connecting rod 10 is also provided with a mounting groove a, one end of the clamping piece 2 is provided with a second clamping part 20, and the other end of the clamping piece is hinged with the connecting rod 10 in the mounting groove a; one end of the clamp 3 is provided with a second holding part 30, and the other end is hinged with the second end of the connecting rod 10; one end of the connecting wire 4 is fixedly connected with one end of the clamp 2 far away from the second clamping part 20, the other end of the connecting wire is fixedly connected with one end of the clamp 3 far away from the second holding part 30, the arrangement can lead the connecting wire 4 to be stretched by swinging the clamp 3, the clamp 2 is further pulled to swing, the connecting point is arranged on the clamp 2 close to the first clamping part 11, and the connecting point is arranged on the clamp 3 far away from the first holding part 12, so that when the clamp 3 swings towards the first holding part 12, the clamp 2 is driven to swing towards the first clamping part 11 to clamp an object; the torsion spring 5 is sleeved on the hinge shaft of the clamping piece 2 and used for resetting the swinging clamping piece 2. Because use connecting wire 4 to

clamp

2 and 3 linkages of pincers spare, need add 5 automatic re-setting of torsional spring, this 5 uses of torsional spring, has guaranteed that this medical pincers are under the normality, and clamp 2 is opened by 5 torsion of torsional spring to when this medical pincers stretch into patient wound and carry out the operation, also can automatic supplementary strutting the human tissue, make things convenient for going on of operation.

Specifically, in the existing minimally invasive surgery, the wound of the chest of the patient is relatively small, and in the existing medical forceps used in the chest surgery, most of the forceps are designed as straight forceps, and after the forceps extend into the wound, if an object to be clamped is located on the surface position close to the chest, the straight forceps are difficult to clamp the wound, or the vision of a doctor who uses the forceps is blocked due to the clamping angle of the forceps. In this case, since the forceps head of the medical clip is bent with respect to the gripped handle portion, the problem can be effectively solved, and the transmission is performed using the connecting wire 4 having higher plasticity than that of a rigid rod. In the embodiment of the present invention, the relative position of the surface formed by the first clamping portion 11 and the second clamping portion 20 with respect to the surface formed by the first holding portion 12 and the second holding portion 30 is changed by bending the connecting rod 10. Because the connecting wire 4 is adopted for transmission, the structure is more flexible, hard damage to human tissues is not easy to cause, for example, the gaps between all transmission parts clamp the body of a person, and the torsion spring 5 is arranged, so that when the medical forceps is stretched into the wound of a patient for operation, the medical forceps can automatically assist in propping open the human tissues, and the operation is convenient to carry out. Therefore, the problem can be solved, the straight pliers can be clamped to the position where the straight pliers are difficult to clamp relatively easily, and the clamping range is relatively enlarged.

Further, the connecting rod 10 comprises a first rod 101 and a second rod 102, one end of the first rod 101 is fixedly connected with the second rod 102, the other end of the first rod 101 is provided with a first clamping portion 11, one end, far away from the first rod 101, of the second rod 102 is provided with a first holding portion 12, the first rod 101 is arranged in a straight manner, the second rod 102 is arranged in a bent manner relative to the first rod 101, and an included angle α between the second rod 102 and the first rod 101 is 15-30 degrees.

Further, the surface formed between the first clamping part 11 and the second clamping part 20 is arranged in a bending way relative to the first rod 101, and the included angle β is 15-30 degrees.

Further, a first clamping part 120 is further arranged on one side of the first holding part 12 close to the second holding part 30, and a second clamping part 300 is further arranged on one side of the second holding part 30 close to the first holding part 12; when the second holding portion 30 swings to approach the first holding portion 12, the first clamping portion 120 and the second clamping portion 300 are clamped. When the swing clamp 3 drives the clamp 2 to swing to a specified required position, the first clamping portion 120 and the second clamping portion 300 are clamped to fix the current relative positions of the first holding portion 12 and the second holding portion 30, and further fix the relative positions of the first clamping portion 11 and the second clamping portion 20.

Further, the first clamping part 120 and the second clamping part 300 are both ratchet structures. The ratchet structure can effectively prevent the first clamping part 120 and the second clamping part 300 from moving reversely relative to each other, and only allow the first clamping part 120 and the second clamping part 300 to move toward each other, so that the relative positions of the first holding part 12 and the second holding part 30 can be fixed and adjusted. If the first holding portion 12 and the second holding portion 30 need to be opened again, due to the elasticity of the material of the medical forceps, the first holding portion 12 and the second holding portion 30 are pulled up and down by an external force to shift the first clamping portion 120 and the second clamping portion 300, and at this time, the first holding portion 12 and the second holding portion 30 are away from each other in a reverse direction, and the first holding portion 12 and the second holding portion 30 are returned to a parallel state due to the elasticity of the material.

Furthermore, a tubular channel is arranged in the pliers body 1, and the connecting wire 4 penetrates through the tubular channel to connect the clamping piece 2 and the pliers piece 3. The arrangement of the tubular channel can protect the connecting wire 4 and prevent the interference of the connecting wire 4 to the operation.

Further, the medical forceps further comprise a first observation piece 6, and the first observation piece 6 is detachably mounted at the notch of the mounting groove a. Set up first observation piece 6 for reduce the gap between folder 2 and the connecting rod 10, can prevent that the gap between folder 2 and the connecting rod 10 from pressing from both sides when the operation from hindering the human body, to the operation lead to the fact the puzzlement, and owing to can dismantle, can make things convenient for the washing after the operation, and whether can look over whether have the foreign matter to exist in the mounting groove a, also can be used to look over whether the connection condition of connecting wire 4 is stable.

Furthermore, the medical forceps further comprise a first elastic connecting piece 7, one end of the first elastic connecting piece 7 is fixedly connected with one end, far away from the second clamping part 20, of the clamping piece 2, the connecting point is arranged on the end far away from the connecting line 4, and the other end of the first elastic connecting piece 7 is connected to the upper end of the first observation piece 6. In the present invention, the first elastic connecting member 7 is made of rubber material, so as to reduce the possibility of foreign matters entering the mounting groove a.

It should be noted that, in the present invention, the joint between the pincer 3 and the connecting rod 10 may also be provided with the first observing piece 6 and the first elastic connecting piece 7.

Furthermore, the two connecting lines 4 are arranged, so that the situation that the medical cavity cannot be used to influence the operation after one connecting line 4 is disconnected in the operation process can be prevented.

Further, in order to enable the medical forceps to be more labor-saving and have a larger clamping stroke, the medical forceps further comprise a second observation piece 8 and a second elastic connecting piece 9 before medical use, one end, away from the second clamping portion 20, of the clamping piece 2 is provided with a barb b, the connecting line 4 is connected to the tail end of the barb b, an observation port c is arranged on the connecting rod 10, the second observation piece 8 is detachably installed on the observation port c, one end, away from the second clamping portion 20, of the second elastic connecting piece 9 is fixedly connected with one end, away from the second clamping portion 20, of the clamping piece 2, and the other end of the second elastic connecting. Wherein the second viewing plate 8 has a function similar to that of the first viewing plate 6 for checking whether there is a foreign substance inside the viewing port c or checking the connection condition of the connecting cord 4.

The connecting line 4 is connected to the connecting point of the clamping piece 2, the straight line formed between the hinge point of the clamping piece 2, and the straight line formed between the hinge point of the clamping piece 2 and the second clamping part 20, because the diameter of the connecting rod 10 is limited, the straight line distance of the connecting rod 10 is increased as much as possible within the allowable range of the cavity inside the connecting rod to increase the length of the force arm of the connecting rod, so that the purpose of saving labor is achieved, and simultaneously, the included angle between the two straight lines is increased to increase the force application stroke of the clamping piece 2, as shown in fig. 11. In the embodiment of the present invention, the included angle between the two straight lines is 45 degrees, so that the clamping range of the second clamping portion 20 on the clamping member 2 reaches 45 degrees.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The medical forceps are characterized by comprising a forceps body (1), a clamping piece (2), a forceps piece (3), a connecting wire (4) and a torsion spring (5);

the pliers body (1) comprises a connecting rod (10), a first clamping portion (11) and a first holding portion (12), wherein the first end of the connecting rod (10) is fixedly connected with the first clamping portion (11), the second end of the connecting rod (10) is fixedly connected with the first holding portion (12), and the connecting rod (10) is arranged in a bent mode; the first end of the connecting rod (10) is also provided with an installation groove (a), one end of the clamp (2) is provided with a second clamping part (20), and the other end of the clamp is hinged with the connecting rod (10) in the installation groove (a); one end of the clamp (3) is provided with a second holding part (30), and the other end of the clamp is hinged with the second end of the connecting rod (10);

one end of the connecting wire (4) is fixedly connected with one end, far away from the second clamping part (20), of the clamping piece (2), the connecting point is arranged on the end, close to the first clamping part (11), of the clamping piece, the other end of the connecting wire (4) is fixedly connected with one end, far away from the second holding part (30), of the clamp piece (3), and the connecting point is arranged on the end, far away from the first holding part (12);

the torsion spring (5) is sleeved on the hinged shaft of the clamping piece (2) and used for resetting the swinging clamping piece (2).

2. The medical forceps as claimed in claim 1, wherein the connecting rod (10) comprises a first rod (101) and a second rod (102), one end of the first rod (101) is fixedly connected with the second rod (102), the other end of the first rod (101) is provided with a first clamping portion (11), one end of the second rod (102) far away from the first rod (101) is provided with a first holding portion (12), the first rod (101) is arranged in a straight manner, the second rod (102) is arranged in a bent manner relative to the first rod (101), and an included angle α between the second rod (102) and the first rod (101) is 15-30 degrees.

3. Medical forceps according to claim 2, characterised in that the plane formed between the first holding part (11) and the second holding part (20) is arranged curved relative to the first lever (101) with an angle β of 15 to 30 degrees.

4. The medical forceps as claimed in claim 1, characterized in that the first holding portion (12) is further provided with a first clamping portion (120) on a side close to the second holding portion (30), and the second holding portion (30) is further provided with a second clamping portion (300) on a side close to the first holding portion (12); when the second holding part (30) swings to be close to the first holding part (12), the first clamping part (120) is clamped with the second clamping part (300).

5. Medical forceps according to claim 4, characterized in that the first gripping part (120) and the second gripping part (300) are of a ratchet construction.

6. The medical forceps according to claim 1, characterized in that a tubular passage is provided in the forceps body (1), and the connecting wire (4) passes through the tubular passage to connect the clamping piece (2) and the forceps member (3).

7. The medical forceps according to claim 1, further comprising a first observation plate (6), wherein the first observation plate (6) is detachably mounted at the notch of the mounting groove (a).

8. The medical forceps according to claim 7, further comprising a first elastic connecting member (7), wherein one end of the first elastic connecting member (7) is fixedly connected with one end of the clamping member (2) far away from the second clamping portion (20), the connecting point is arranged far away from the connecting line (4) at the end, and the other end of the first elastic connecting member (7) is connected with the upper end of the first observation plate (6).

9. Medical forceps according to claim 1, characterized in that there are two of the connecting lines (4).

10. The medical forceps as claimed in claim 1, further comprising a second observation plate (8) and a second elastic connecting member (9), wherein a barb (b) is disposed at an end of the clamping member (2) away from the second clamping portion (20), the connecting wire (4) is connected to a tail end of the barb (b), an observation port (c) is disposed on the connecting rod (10), the second observation plate (8) is detachably mounted on the observation port (c), one end of the second elastic connecting member (9) is fixedly connected with the end of the clamping member (2) away from the second clamping portion (20), and the other end of the second elastic connecting member is connected to a notch of the mounting groove (a).