CN203861274U

CN203861274U - Uterine biopsy forceps

Info

Publication number: CN203861274U
Application number: CN201420233031.7U
Authority: CN
Inventors: 栾仁炳; 宓光明
Original assignee: XINHUA SURGICAL INSTRUMENT CO Ltd
Current assignee: XINHUA SURGICAL INSTRUMENT CO Ltd
Priority date: 2014-05-08
Filing date: 2014-05-08
Publication date: 2014-10-08
Anticipated expiration: 2024-05-08

Abstract

The utility model relates to a pair of uterine biopsy forceps, which comprises a movable forceps head, a fixing forceps body, a connecting rod and a movable handle, wherein a fixing forceps head is arranged at the front end of the fixing forceps body; a movable forceps head clamping groove is formed in the fixing forceps head; the movable forceps head is movably connected with the connecting rod through a pin shaft; a convex flat shaft integrally processed with the movable forceps head are arranged on the two sides at the tail of the movable forceps head; a groove corresponding to the convex flat shaft is formed in the inner wall of the fixing forceps head on the two sides of the movable forceps head clamping groove; the groove consists of a circular groove and a strip-shaped sliding groove; the width of the strip-shaped sliding groove is equal to that of the cross section of the convex flat shaft; one end of the strip-shaped sliding groove is communicated with the circular groove; an opening in the other end is positioned on the upper end face of the fixing forceps head; the convex flat shaft can be inserted into the circular groove along the strip-shaped sliding groove; the movable forceps head is hinged with the fixing forceps head through the convex flat shaft. The pair of uterine biopsy forceps is reasonable in structure design, simple and convenient to assemble, can improve the overall strength of the cutting forceps and the cutting accuracy of the cutting edges, which helps to well accomplish operations.

Description

Uterine biopsy forceps

Technical field

This utility model relates to a kind of uterine biopsy forceps, belongs to medical instruments field.

Background technology

The mode (need to hole on fixed pliers head and carry out bearing pin riveted joint) that in medical surgical instrument, the punch forceps head (comprising fixed pliers head and movable binding clip) of traditional uterine biopsy forceps mainly adopts bearing pin to rivet at present, be subject to the impact of apparatus size own and bearing pin intensity, this class apparatus is in clinical operation, it is very risky that appearance activity binding clip or fixed pliers head or bearing pin rupture, uterine biopsy forceps is the form of cutting of stinging to cutting simultaneously, require very high to cutting edge gap precision, in traditional handicraft, be subject to the restriction of Benchwork level, after the assembling of movable binding clip and fixed pliers head, easily occur that cutting edge stings the problem accurately of cutting not, cut unstable properties thereby cause uterine biopsy forceps to sting, when use, can affect the completeness of clinical operation, increase operation risk.

Utility model content

According to above deficiency of the prior art, the technical problems to be solved in the utility model is: a kind of reasonable in design is provided, assembles simple and convenient, can to increase punch forceps head bulk strength, improve cutting edge and sting and cut precision and guarantee the uterine biopsy forceps that operation is normally carried out.

Uterine biopsy forceps described in the utility model, comprise movable binding clip, fixed caliper, connecting rod and flexible handle, fixed caliper front end has fixed pliers head, movable binding clip draw-in groove is set in fixed pliers head, movable binding clip is flexibly connected with connecting rod by bearing pin, the two sides of tail of movable binding clip has the flat axle of evagination being processed into the first body of adjustable clamp, the flat axle of corresponding evagination arranges groove on the fixed pliers head inwall of movable binding clip draw-in groove both sides, groove is made up of circular trough and bar shaped chute, the width of bar shaped chute is identical with the width of the flat axle cross section of evagination, one end of bar shaped chute is communicated with circular trough, the opening of the other end is positioned on the upper surface of fixed pliers head, the flat axle of evagination enters in circular trough along bar shaped chute, movable binding clip is hinged by the flat axle of evagination and fixed pliers head.

This uterine biopsy forceps is mainly by the flat axle of evagination of movable binding clip and the assembling of the groove fit of fixed pliers head, when assembling, the angle of first adjustment activity binding clip overlaps the width of the flat axle of evagination and the bar shaped chute width of fixed pliers head, the flat axle of evagination is entered in bar shaped chute along the opening of fixed pliers head upper surface, and the flat axle of evagination of mobile movable binding clip is to circular trough position, rotary moveable binding clip no longer overlaps the width of the flat axle of evagination with fixed pliers head bar shaped chute width, rely on the difference of the flat axle cross section of evagination length and width size to complete the clamping assembling of movable binding clip and fixed pliers head.

In this utility model, because the flat axle of evagination and the first body of adjustable clamp of movable binding clip both sides process, therefore bulk strength is high, carry out assembly connection by this Integral type movable binding clip and the fixed pliers head with groove, replace the bearing pin riveted joint of punch forceps head in traditional uterine biopsy forceps, on the one hand, can avoid the stress concentration defect of bringing because of riveted joint, increase the bulk strength of punch forceps head, reduce risk of breakage, on the other hand, this without bearing pin riveted joint assembling, reduce the requirement to Benchwork, reduce the impact of anthropic factor, pincers worker only needs simple assembling, simple operation and error free, can ensure that cutting edge stings the positional precision of cutting position, improve the goodness of fit of stinging cutting blade mouth, ensure the serviceability of uterine biopsy forceps in operation process, make apparatus can complete better operation.

The beneficial effect that this utility model compared with prior art had is:

This uterine biopsy forceps reasonable in design, by flat evagination axle and movable binding clip are carried out to one processing, can avoid the stress concentration defect of bringing because of riveted joint, increase the bulk strength of punch forceps head, reduce risk of breakage, by assembling without bearing pin riveted joint, assembly manipulation is simple and convenient, both reduced the requirement to Benchwork, reduce the impact of anthropic factor, can ensure that again cutting edge stings the positional precision of cutting position, improved the goodness of fit of stinging cutting blade mouth, ensure the serviceability of uterine biopsy forceps in operation process, to complete better operation.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of movable binding clip;

Fig. 3 is the top view of Fig. 2;

Fig. 4 is the structural representation of fixed caliper front end fixed pliers head;

Fig. 5 is the top view of Fig. 4.

In figure: 1, movable binding clip; 2, bearing pin; 3, connecting rod; 4, fixed caliper; 5, flexible handle; 6, fixed pliers head; 7, the flat axle of evagination; 8, circular trough; 9, bar shaped chute; 10, opening; 11, movable binding clip draw-in groove.

Detailed description of the invention

Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:

As shown in Fig. 1～5, uterine biopsy forceps comprises movable binding clip 1, fixed caliper 4, connecting rod 3 and flexible handle 5, fixed caliper 4 front ends have fixed pliers head 6, movable binding clip draw-in groove 11 is set in fixed pliers head 6, movable binding clip 1 is flexibly connected with connecting rod 3 by bearing pin 2, the two sides of tail of movable binding clip 1 has the flat axle 7 of evagination being processed into movable binding clip 1 one, the flat axle 7 of corresponding evagination arranges groove on fixed pliers head 6 inwalls of movable binding clip draw-in groove 11 both sides, groove is made up of circular trough 8 and bar shaped chute 9, the width of bar shaped chute 9 is identical with the width of flat axle 7 cross sections of evagination, one end of bar shaped chute 9 is communicated with circular trough 8, the opening 10 of the other end is positioned on the upper surface of fixed pliers head 6, the flat axle 7 of evagination enters in circular trough 8 along bar shaped chute 9, movable binding clip 1 is hinged with fixed pliers head 6 by the flat axle 7 of evagination.

This uterine biopsy forceps is mainly by the flat axle 7 of evagination of movable binding clip 1 and the assembling of the groove fit of fixed pliers head 6, when assembling, the angle of first adjustment activity binding clip 1 overlaps the width of the flat axle 7 of evagination and bar shaped chute 9 widths of fixed pliers head 6, the flat axle 7 of evagination is entered in bar shaped chute 9 along the opening 10 of fixed pliers head 6 upper surfaces, and the flat axle 7 of the evagination of mobile movable binding clip 1 is to circular trough 8 positions, rotary moveable binding clip 1 no longer overlaps the width of the flat axle 7 of evagination with bar shaped chute 9 widths of fixed pliers head 6, rely on the difference of the flat axle 7 cross section length and width sizes of evagination to complete the clamping assembling of movable binding clip 1 and fixed pliers head 6.

In use procedure, movable binding clip 1 is connected (can adopt bearing pin riveted joint or connect without bearing pin) and follows connecting rod 3 and move with connecting rod 3, coordinates to realize stinging that biopsy samples and cut action with fixed pliers head 6; Connecting rod 3 connection activity binding clips 1, the force and motion that accepting activity handle transmits, then passes to movable binding clip 1; Flexible handle 5 is connected with fixed caliper 4, will rotatablely move and be transformed into rectilinear motion, then drive movable head to complete by connecting rod 3 to rotatablely move.

Because the flat axle 7 of evagination of movable binding clip 1 both sides processes with movable binding clip 1 one, therefore bulk strength is high, carry out assembly connection by this Integral type movable binding clip 1 and the fixed pliers head 6 with groove, replace the bearing pin riveted joint of punch forceps head in traditional uterine biopsy forceps, on the one hand, can avoid the stress concentration defect of bringing because of riveted joint, increase the bulk strength of punch forceps head, reduce risk of breakage, on the other hand, this without bearing pin riveted joint assembling, reduce the requirement to Benchwork, reduce the impact of anthropic factor, pincers worker only needs simple assembling, simple operation and error free, can ensure that cutting edge stings the positional precision of cutting position, improve the goodness of fit of stinging cutting blade mouth, ensure the serviceability of uterine biopsy forceps in operation process, make apparatus can complete better operation.

Except above-mentioned points, in the course of processing, movable binding clip and fixed pliers head can adopt same machining benchmark, by numerical control finishing impression and numerical control machining center, inside and outside completing, sting the disposable shaping processing at the flat axle of cutting blade mouth, profile and evagination and groove assembling position, to ensure stinging shape and the positional precision of cutting position, make to sting cutting blade tone right higher.

Claims

1. a uterine biopsy forceps, comprise movable binding clip (1), fixed caliper (4), connecting rod (3) and flexible handle (5), fixed caliper (4) front end has fixed pliers head (6), movable binding clip draw-in groove (11) is set in fixed pliers head (6), movable binding clip (1) is flexibly connected with connecting rod (3) by bearing pin (2), it is characterized in that: the two sides of tail of movable binding clip (1) has the flat axle of evagination (7) being processed into movable binding clip (1) one, the corresponding flat axle of evagination (7) arranges groove on fixed pliers head (6) inwall of movable binding clip draw-in groove (11) both sides, groove is made up of circular trough (8) and bar shaped chute (9), the width of bar shaped chute (9) is identical with the width of the flat axle of evagination (7) cross section, one end of bar shaped chute (9) is communicated with circular trough (8), the opening (10) of the other end is positioned on the upper surface of fixed pliers head (6), the flat axle of evagination (7) enters in circular trough (8) along bar shaped chute (9), movable binding clip (1) is hinged by the flat axle of evagination (7) and fixed pliers head (6).