CN215688091U

CN215688091U - Disposable cervix biopsy forceps

Info

Publication number: CN215688091U
Application number: CN202121607298.4U
Authority: CN
Inventors: 李东骏; 杨凯来
Original assignee: Changzhou Shuangma Medical Equipment Co ltd
Current assignee: Changzhou Shuangma Medical Equipment Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-02-01
Anticipated expiration: 2031-07-14

Abstract

The utility model relates to a disposable cervix biopsy forceps, which comprises a fixed handle, a movable handle, an outer tube, a push rod, an upper forceps head and a lower forceps head, wherein the fixed handle and the movable handle are hinged through a handle pin, an elastic element is connected between the fixed handle and the movable handle, the outer tube is in a hollow tubular shape, one end of the outer tube is arranged in the fixed handle through a fixing ring, the push rod is arranged in the outer tube, one end of the push rod is fixedly connected in the movable handle through a pressing sheet, the lower forceps head is connected at the other end of the outer tube, the upper forceps head is hinged at the other end of the push rod through a push rod rivet, the upper forceps head and the lower forceps head are hinged through a forceps head rivet, the upper forceps head is in an olecranon shape and is provided with a convex arc part, a cutting edge part and a concave arc part which are sequentially transited, the cutting edge part is an acute angle, and the disposable cervix biopsy forceps comprises a movable handle, a movable handle pin, a movable handle, a lower forceps head, a movable handle, a movable clamp, the security is high, sample efficient, the injury is little.

Description

Disposable cervix biopsy forceps

The technical field is as follows:

the utility model relates to the technical field of medical instruments, in particular to a disposable cervix biopsy forceps.

Background art:

cervical biopsy is a biopsy of the cervix, i.e., a small piece or pieces of tissue taken from the cervix is pathologically examined to determine a diagnosis. The biopsy forceps for cervix uteri are widely applied in clinic due to the advantages of large sampling amount, high biopsy accuracy, small harm to patients and the like.

In the existing relatively common cervix biopsy forceps in the market, the upper forceps head is relatively flat, and the position where the outer side of the upper forceps head is possibly contacted with the cervix is generally small in arc, so that the inner wall is easily damaged; and the blade angle is great, is close the right angle, and is sharp inadequately, and not only sampling efficiency is lower, can cause extra pain to the patient moreover.

The utility model has the following contents:

aiming at the problems, the utility model provides a disposable cervix biopsy forceps which is high in safety, high in sampling efficiency and small in damage.

The utility model is realized by the following technical scheme: a disposable cervix biopsy forceps comprises a fixed handle, a movable handle, an outer tube, a push rod, an upper forceps head and a lower forceps head.

In order to realize quick and efficient in-vivo sampling, the fixed handle is hinged with the movable handle through a handle pin, an elastic element is connected between the fixed handle and the movable handle, the outer tube is in a hollow tubular shape, one end of the outer tube is arranged in the fixed handle through a fixing ring, the push rod is arranged in the outer tube, one end of the push rod is fixedly connected in the movable handle through a pressing piece, the lower tong head is connected at the other end of the outer tube, the upper tong head is hinged at the other end of the push rod through a push rod rivet, and the upper tong head is hinged with the lower tong head through a tong head rivet. The movable handle and the fixed handle are held and loosened, so that a push rod connected with the movable handle through a pressing sheet can be driven to stretch in the outer tube, the upper binding clip can be pushed to rotate around the binding clip rivet, the opening and closing of the upper binding clip and the lower binding clip are controlled, and the in-vivo sampling can be completed.

Further, the disposable cervix biopsy forceps have the advantages that biopsy samples are stored, the disposable cervix biopsy forceps further comprise a tissue pocket, the tissue pocket is connected to the lower portion of the lower forceps head, the lower forceps head is provided with the U-shaped through hole, the sampling success rate can be improved, the lower forceps head is communicated with the tissue pocket, and cut tissues can directly fall into the tissue pocket from the U-shaped through hole.

Furthermore, a cover cap is arranged at the upper end of the fixed handle.

In order to strengthen the blade sharpness under the prerequisite of guaranteeing the security, improve sample efficiency, reduce patient's misery, go up the binding clip and be olecranon form, have protruding circular arc portion, cutting edge portion and the concave circular arc portion of transition in proper order, cutting edge portion is the acute angle. The arc radius of the convex arc part is obviously increased compared with that of a common sampling forceps, so that the injury to the inner wall of a cervix during sampling can be effectively avoided, and the safety is improved; the cutting edge part is designed into a smaller acute angle, so that the sharpness can be increased, and the sampling efficiency is improved.

Preferably, the angle of the cutting edge portion is 25 ° to 55 °.

In order to improve the installation convenience and reliability, the handle pin is a metal rod with a knurled end, and the fixed handle and the movable handle can be connected only by pressing the knurled end into a connecting and matching position during assembly.

In order to improve safety, the convex arc part is a large fillet.

In order to further optimize the structure of the upper tong head, the concave circular arc part is a large round angle.

In order to facilitate positioning when clamping tissues, the upper part of the head of the lower forceps head is provided with an antiskid bulge which is used for preventing skidding while positioning, and the safety is further improved.

In order to increase handle frictional force, stability when improving the gripping prevents to shift among the sampling process, guarantees the accuracy and the efficiency of sampling process, further improves the security, fixed handle and activity handle outside have antiskid.

Preferably, the elastic element is a spring, and other elastic elements may be designed according to actual conditions.

The utility model has the beneficial effects that: the disposable cervix biopsy forceps has the advantages that the olecranon-shaped upper forceps head is designed to replace an excircle with a small circular angle and a cutting edge with a large angle in the prior art, so that the safety is improved, the sharpness of the cutting edge is enhanced, the biopsy sampling efficiency is greatly improved, and the pain of a patient is relieved; the U-shaped through hole structure is designed on the lower tong head to replace a hole with a beam structure in the prior art, so that the sampling success rate is improved; the design of the anti-skid device effectively avoids the positioning deviation caused by the sliding of the fingers, and further improves the sampling efficiency and the safety; in addition, the disposable cervix biopsy forceps has strong grasping reliability and convenient operation.

Description of the drawings:

FIG. 1 is a schematic structural view of a disposable cervical biopsy forceps of the present invention;

FIG. 2 is a schematic structural view of the upper forceps head of the disposable cervical biopsy forceps of the present invention;

FIG. 3 is a schematic view of the structure of the handle pin of the disposable cervical biopsy forceps of the present invention;

FIG. 4 is a front view of the lower jaw of the disposable cervical biopsy forceps of the present invention;

FIG. 5 is a top view of the lower jaw of the disposable cervical biopsy forceps of the present invention;

FIG. 6 is a left side view of the lower jaw of the disposable cervical biopsy forceps of the present invention;

FIG. 7 is a schematic view of the structure of the lower forceps head and the stopping pocket of the disposable cervical biopsy forceps of the present invention;

in the figure: 1. fixing a handle; 2. a movable handle; 3. an outer tube; 4. a push rod; 5. an upper binding clip; 51. a convex arc portion; 52. a blade portion; 53. a concave arc portion; 6. a lower binding clip; 61. a through hole; 62. anti-skid projections; 7. a handle pin; 8. an elastic element; 9. a fixing ring; 10. a tissue pocket; 11. tabletting; 12. a push rod rivet; 13. binding clip rivets; 14. capping; 15. an anti-skid device.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model more readily understood by those skilled in the art, and thus will more clearly and distinctly define the scope of the utility model.

The disposable cervix biopsy forceps shown in fig. 1 comprises a fixed handle 1, a movable handle 2, an outer tube 3, a push rod 4, an upper forceps head 5 and a lower forceps head 6, wherein the fixed handle 1 and the movable handle 2 are hinged through a handle pin 7, and as shown in fig. 3, the handle pin 7 is a metal rod with a knurling at one end.

An elastic element 8 is connected between the fixed handle 1 and the movable handle 2, and in this embodiment, the elastic element 8 is a spring.

The outer tube 3 is the cavity tubulose, and one end sets up through solid fixed ring 9 in the fixed handle 1, push rod 4 sets up in the outer tube 3, and one end through preforming 11 fixed connection in the activity handle 2, binding clip 6 is connected down the outer tube 3 other end, as shown in fig. 7, binding clip 6 below is connected with tissue pocket 10 down, binding clip 6 with organize pocket 10 intercommunication down, it articulates through push rod rivet 12 to go up binding clip 5 the push rod 4 other end, it is articulated through binding clip rivet 13 between binding clip 5 and the lower binding clip 6, fixed handle 1 upper end is equipped with block 14.

The fixed handle 1 and the movable handle 2 are provided with anti-skid devices 15 on the outer sides.

As shown in fig. 2, the upper jaw 5 is shaped like an olecranon, and has a convex arc portion 51, a cutting edge portion 52, and a concave arc portion 53 which are sequentially transited, wherein the cutting edge portion 52 has an acute angle of 25 ° to 55 °, the convex arc portion 51 has a large fillet, and the concave arc portion has a large fillet.

As shown in fig. 4-6, the lower binding clip 6 is provided with a U-shaped through hole 61 instead of a hole with a beam structure in the prior art, so as to avoid the situation that the tissue is extruded to the rear end of the cutting edge and is not blocked at the cutting edge when shearing the tissue. In addition, the upper part of the end part of the lower binding clip 6 is provided with an antiskid bulge 62.

When the disposable cervical biopsy forceps are used for carrying out cervical biopsy, the front end of the forceps body is firstly extended into a cervix, the upper forceps head 5 and the lower forceps head 6 are aligned to a part to be sampled, the anti-skid protrusions 62 on the lower forceps head 6 can be used for assisting in positioning and preventing sliding, then the fixed handle 1 and the movable handle 2 are held, the movable handle 2 drives the push rod 4 connected with the movable handle through the pressing sheet 11 to extend out of the outer tube 3, so that the upper forceps head 5 can be pushed to rotate around the forceps head rivet 13, the upper forceps head 5 is controlled to be occluded with the lower forceps head 6, biopsy can be completed, and a taken biopsy sample can directly fall into the tissue pocket 10 below the lower forceps head 6 through the U-shaped through hole 61; when the movable handle 2 is loosened, the spring 8 drives the movable handle 2 to reset, the push rod 4 is retracted along with the movable handle, and the upper tong head 5 and the lower tong head 6 are opened.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "disposed," "provided," 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a disposable cervix biopsy forceps, includes fixed handle, activity handle, outer tube, push rod, goes up binding clip and lower binding clip, fixed handle with the activity handle passes through the handle round pin and articulates, fixed handle with be connected with elastic element between the activity handle, the outer tube is the cavity tubulose, and one end is passed through solid fixed ring and is set up in the fixed handle, the push rod sets up in the outer tube, and one end pass through preforming fixed connection in the activity handle, the binding clip is connected down the outer tube other end, it passes through the push rod rivet and articulates to go up the binding clip the push rod other end, go up binding clip and pass through binding clip rivet hinge between the binding clip down, its characterized in that: the upper tong head is in an olecranon shape and is provided with a convex arc part, a cutting edge part and a concave arc part which are sequentially transited, wherein the cutting edge part is an acute angle.

2. The single use cervical biopsy forceps of claim 1, wherein: the angle of the blade opening part is 25-55 degrees.

3. The single use cervical biopsy forceps of claim 1, wherein: the handle pin is a metal rod with a knurl at one end.

4. The single use cervical biopsy forceps of claim 1, wherein: the convex arc part is a large fillet, and the concave arc part is a large fillet.

5. The single use cervical biopsy forceps of claim 1, wherein: still include the tissue pocket, the tissue pocket is connected lower binding clip below and with lower binding clip intercommunication.

6. The single use cervical biopsy forceps of claim 5, wherein: the lower binding clip is provided with a U-shaped through hole.

7. The single use cervical biopsy forceps of claim 1, wherein: and an anti-skid bulge is arranged above the head part of the lower plier head.

8. The single use cervical biopsy forceps of claim 1, wherein: the upper end of the fixed handle is provided with a cover cap.

9. The single use cervical biopsy forceps of claim 1, wherein: the outer sides of the fixed handle and the movable handle are provided with anti-skid devices.

10. The single use cervical biopsy forceps of claim 1, wherein: the elastic element is a spring.