CN211560179U

CN211560179U - Improved folding biopsy forceps

Info

Publication number: CN211560179U
Application number: CN201921348434.5U
Authority: CN
Inventors: 苏峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-09-25
Anticipated expiration: 2029-08-20

Abstract

The utility model relates to the field of medical equipment, concretely relates to folding biopsy forceps of improved generation, including hose and two sets of complex binding clip that set up at its front end, the hose front end is connected with the symmetrical carousel of downside through the pivot rotation, the pivot circumference lateral wall of upside carousel is provided with the ring gear, the meshing of ring gear left side has unilateral rack, the rear side is all rotated from left to right between two sets of carousels and is connected with the axostylus axostyle, the axostylus axostyle middle part all is provided with the regulation and control gear, the meshing has bilateral rack in the middle of two sets of regulation and control gears, bilateral rack rear end is rotated through the articulated elements and is connected with the disc, disc rear side axle center is connected with first cable wire, the front side is all rotated from left; the utility model discloses a two sets of binding clip are simultaneously at the hose front end horizontal hunting, slow down two sets of binding clip amplitude of oscillation for can improve application scope to the sample of department of buckling in less space.

Description

Improved folding biopsy forceps

Technical Field

The utility model relates to the field of medical equipment, concretely relates to biopsy forceps are folded to improved generation.

Background

Biopsy forceps are one of the most important and commonly used tools in modern gastroenterology diagnosis and treatment, and are used for obtaining gastrointestinal mucosal tissues and providing pathological basis for diagnosis, and pathological biopsy is always considered as the 'gold standard' for tumor diagnosis. During the biopsy procedure, the operator may also perform appropriate treatments, such as direct removal of small polyps, depending on the lesion condition.

At present, the Chinese utility model 'a mechanical arm type endoscope biopsy forceps (patent number: CN 201410016500.4)' discloses an endoscope biopsy forceps, which comprises a hose and a swing arm rotationally connected through a swing arm joint, wherein the front end of the swing arm is provided with two groups of forceps heads which are mutually matched, and the swing arm is driven by the swing arm joint to swing, so that the bending sampling can be realized, and the sampling area of the forceps heads is increased.

However, the mechanical arm type endoscope biopsy forceps in the application process have the following defects and shortcomings:

the swing arm swing amplitude of the device is great, can't make the binding clip swing around the swing arm front end to can only be applicable to the great biopsy pipeline in space and take a sample, reduce application range.

SUMMERY OF THE UTILITY MODEL

Solves the technical problem

To the above-mentioned shortcoming that prior art exists, the utility model provides a biopsy forceps is folded to improved generation can solve prior art's swing arm swing range effectively great, can't make the binding clip around the swing of swing arm front end to can only be applicable to the great biopsy pipeline in space and take a sample, reduce application range's problem.

Technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model provides a folding biopsy forceps of improved generation, includes the hose and sets up two sets of complex binding clip at its front end, the hose front end rotates through the pivot and is connected with the carousel of bilateral symmetry from top to bottom, and the pivot circumference lateral wall of upside carousel is provided with the ring gear, and the meshing has unilateral rack in the ring gear left side, and is two sets of all rotate about the rear side between the carousel and be connected with the axostylus axostyle, and the axostylus axostyle middle part all is provided with the regulation and control gear, and is two sets of regulation and control gear intermediate gearing has bilateral rack, and bilateral rack rear end rotates through the articulated elements and is connected with the disc, and disc rear side axle center is connected with first cable wire, the lower part all is connected with the binding clip through the connecting piece on the ax.

Furthermore, the left side and the right side of the front end of the hose are provided with notches, so that the front end of the hose is prevented from blocking the swinging of the connecting piece.

Furthermore, the upper side of the unilateral rack is provided with a T-shaped sliding block, the rear end of the unilateral rack is connected with a second steel cable, the inner cavity of the upper left side of the hose is provided with a T-shaped sliding groove matched with the T-shaped sliding block, the second steel cable is controlled, the unilateral rack moves back and forth, and meanwhile, the stability of the unilateral rack in meshing with the gear ring is improved through the mutual matching of the T-shaped sliding block and the T-shaped sliding groove.

Furthermore, a spring cavity in clearance fit with the disc is formed in the middle of the hose, a spring is arranged in the spring cavity, the first steel cable penetrates through the spring and moves backwards when the first steel cable is controlled, so that the disc is driven to move backwards in the spring cavity, the disc is guaranteed to move transversely along the spring cavity, the spring is compressed, and after the first steel cable is loosened, the disc automatically returns to an initial position under the elastic action of the spring.

Furthermore, the middle parts of the connecting pieces are provided with arc-shaped parts, so that when the two groups of tong heads are closed mutually, the connecting pieces are prevented from touching the limiting gear.

Advantageous effects

Adopt the utility model provides a technical scheme compares with known public technique, has following beneficial effect:

the utility model discloses a two sets of binding clip are simultaneously at the hose front end horizontal hunting, slow down two sets of binding clip amplitude of oscillation for can take a sample the department of buckling in less space, improve application scope.

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 is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic view of the front view structure of a part of the hose of the present invention;

FIG. 2 is a schematic view of the rear view structure of a part of the hose of the present invention;

FIG. 3 is a schematic cross-sectional view of a portion of the hose of the present invention;

FIG. 4 is a schematic view of the front view of the hose of the present invention;

fig. 5 is a schematic view of the structure of the utility model with the hose removed;

the reference numerals in the drawings denote: 1-a hose; 2-binding clip; 3-a rotating shaft; 4-a turntable; 5-a gear ring; 6-single-side rack; 7-shaft lever; 8-regulating and controlling the gear; 9-bilateral rack; 10-a hinge; 11-a disc; 12-a first steel cord; 13-a connector; 14-defining a turn bar; 15-defining a gear; 16-notch; 17-T shaped slide block; 18-a spring cavity; 19-a spring; 20-arc shaped part.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Examples

An improved folding biopsy forceps of the present embodiment is disclosed with reference to fig. 1-5: including hose 1 and two sets of complex binding clip 2 of setting at its front end, hose 1 front end is rotated through pivot 3 and is connected with the carousel 4 of downside symmetry, 3 circumference lateral walls of pivot of upside carousel 4 are provided with ring gear 5, ring gear 5 left side meshing has unilateral rack 6, all rotate about the rear side between two sets of carousels 4 and be connected with axostylus axostyle 7, axostylus axostyle 7 middle part all is provided with regulation and control gear 8, two sets of regulation and control gear 8 intermediate toothing have bilateral rack 9, bilateral rack 9 rear end rotates through articulated elements 10 and is connected with disc 11, disc 11 rear side axle center is connected with first cable wire 12, the upper and lower part of axostylus axostyle 7 all is connected with binding clip 2 through connecting piece 13, all rotate about the front side between two sets of carousels 4 and be connected with and prescribe.

Wherein, the left and the right of the front end of the hose 1 are both provided with notches 16; a T-shaped sliding block 17 is arranged on the upper side of the unilateral rack 6, the rear end of the unilateral rack 6 is connected with a second steel cable, and a T-shaped sliding groove matched with the T-shaped sliding block 17 is arranged in the inner cavity of the upper left side of the hose 1; a spring cavity 18 in clearance fit with the disc 11 is formed in the middle of the hose 1, a spring 19 is sleeved in the spring cavity 18, and the first steel cable 12 penetrates through the spring 19; the connecting pieces 13 are each provided with an arc-shaped portion 20 in the middle.

When the flexible pipe is used, the unilateral rack 6 is controlled to move back and forth in the flexible pipe 1, the upper turntable 4 rotates left and right through the matching of the unilateral rack 6 and the gear ring 5, and the stability of the integral rotation of the two groups of turntables 4 is improved through the mutual matching of the two groups of shaft rods 7 and the two groups of limiting rotating rods 14; when the two groups of turntables 4 rotate, the two groups of shaft rods 7 rotate around the axes of the turntables 4, so that the two groups of binding clip 2 are driven by the connecting part 13 to swing left and right, the left side and the right side of the front end of the hose 1 can be sampled, meanwhile, the swing amplitude of the two groups of binding clip 2 is reduced, and the bending part can be sampled in a smaller space; through the limiting effect of the two groups of limiting gears 15 and the two groups of regulating gears 8 on the bilateral rack 9, the bilateral rack 9 is always ensured to be meshed with the two groups of limiting gears 15 and the two groups of regulating gears 8, a certain angle is formed between the tail end of the bilateral rack 9 and the disc 11, and meanwhile through the connecting and rotating effect of the articulated piece 10, when the first steel rope 12 is controlled to drive the disc 11 to move backwards, the disc 11 drives the bilateral rack 9 to move backwards in an inclined mode at a certain angle through the articulated piece 10; when the bilateral rack 9 moves backward in an oblique direction, the two sets of regulating gears 8 are driven to rotate reversely at the same speed, so that the two sets of forceps heads 2 are close to each other, and a sample after sampling is clamped in the two sets of forceps heads 2, so that the sample can be taken out from the body of a patient.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a biopsy forceps is folded to improved generation, includes hose (1) and sets up two sets of complex binding clip (2) at its front end, its characterized in that: the front end of the hose (1) is rotatably connected with turntables (4) with symmetrical upper and lower sides through a rotating shaft (3), the circumferential side wall of the rotating shaft (3) of the turntable (4) on the upper side is provided with a gear ring (5), the left side of the gear ring (5) is meshed with a unilateral rack (6), the left side and the right side of the rear side between the two groups of turntables (4) are rotatably connected with a shaft lever (7), the middle part of the shaft lever (7) is provided with a regulating gear (8), the middle of the two groups of regulating gears (8) is meshed with a bilateral rack (9), the rear end of the bilateral rack (9) is rotatably connected with a disc (11) through an articulated piece (10), the, the upper part and the lower part of the shaft lever (7) are connected with a tong head (2) through a connecting piece (13), the limiting rotary rods (14) are connected to the left side and the right side of the front side between the two groups of rotary discs (4) in a rotating mode, and limiting gears (15) meshed with the bilateral racks (9) are arranged in the middle of the limiting rotary rods (14).

2. The improved folding biopsy forceps according to claim 1, characterized in that the front end of the hose (1) is provided with notches (16) on the left and right.

3. The improved folding biopsy forceps according to claim 1, characterized in that a T-shaped sliding block (17) is arranged on the upper side of the single-sided rack (6), a second steel cable is connected to the rear end of the single-sided rack (6), and a T-shaped sliding groove matched with the T-shaped sliding block (17) is arranged in the inner cavity of the upper left side of the flexible tube (1).

4. The improved folding biopsy forceps according to claim 1, wherein a spring cavity (18) which is in clearance fit with the disc (11) is formed in the middle of the flexible tube (1), a spring (19) is sleeved in the spring cavity (18), and the first cable (12) penetrates through the spring (19).

5. Improved folding biopsy forceps according to claim 1, characterized in that the connecting elements (13) are each provided with an arc-shaped part (20) in the middle.