CN202497184U

CN202497184U - Surgical cutting stitching instrument

Info

Publication number: CN202497184U
Application number: CN 201220064194
Authority: CN
Inventors: 沈沛
Original assignee: CHANGZHOU ZHIYE MEDICAL DEVICES INSTITUTE Co Ltd
Current assignee: CHANGZHOU ZHIYE MEDICAL DEVICES INSTITUTE Co Ltd
Priority date: 2012-02-24
Filing date: 2012-02-24
Publication date: 2012-10-24
Anticipated expiration: 2022-02-24

Abstract

Provided is a surgical cutting stitching instrument, comprising a support bar, an abutting nail seat assembly, a nail-pushing mechanism, and a spacing mechanism, wherein the rear portion of the support bar is fixedly provided with a cover casing having a handle, the nail-pushing mechanism, and the spacing mechanism while the front portion of the support bar is connected with the abutting nail seat assembly; the abutting nail seat assembly comprises an abutting nail seat having an opening at one side, an anvil block fixed at the front portion of the abutting nail seat, and a nail bin and a knife holder which are arranged at the rear portion of the abutting nail seat; the blade fixed upon the knife holder passes through the nail bin and is located at the middle section of the nail line; the abutting nail sheet upon the knife holder is arranged within each nail line of the nail bin; the cross section formed by the abutting nail seat, the anvil block, the nail bin, the knife holder, and the blade is more than a trihedron; two ends of the internal positioning pin arranged at the closed side of the abutting nail seat are respectively arranged upon the nail bin and the anvil block; the external positioning pin is arranged upon the nail bin via crossing, with the rear end of the external positioning pin being connected with a slide carriage while the front end thereof being responding to the location hole upon the anvil block; and an internal guide sleeve and an external guide sleeve upon the blade are respectively arranged upon the internal positioning pin and the external positioning pin and can perform relative movement back and forth. The surgical cutting stitching instrument has the advantages of simple structure, raised assembling efficiency, and reduced making cost.

Description

Surgery is used stapler

Technical field

This utility model relates to a kind of surgery and uses stapler, belongs to technical field of medical instruments.

Background technology

The cutting of curved cutter stapler collection is one with stitching, is generally used for the preceding resection operation of rectum low level, because the arc of end can be fit to dissecting naturally of pelvic cavity, can interior completion of narrow space organize in the cancer hands stiching instrument art.But present curved cutter stapler complex structure, efficiency of assembling is low, and cost of manufacture is high.

Summary of the invention

The purpose of this utility model provide a kind of simple in structure, improve efficiency of assembling, and the surgery that can reduce cost of manufacture is used stapler.

This utility model is that the technical scheme that achieves the above object is: a kind of surgery is used stapler; Comprise cradling piece, nail supporting base assembly and ejector pin mechanism and position-limit mechanism; Said cradling piece rear portion is fixed with case and the ejector pin mechanism and the position-limit mechanism of band handle; The front portion of cradling piece is connected with the nail supporting base assembly, and described position-limit mechanism comprises spacing handle, connecting rod and nail bin clamping plate, and spacing handle is hinged on the cradling piece; The connecting rod two ends are hinged with a side of the top of spacing handle and nail bin clamping plate respectively through upper pin and lower bearing pin respectively, and the two ends of spacing back-moving spring are connected with case with spacing handle respectively; Described ejector pin mechanism comprises ejector pin handle and the push pedal that is connected with the ejector pin handle; The ejector pin handle is hinged on the cradling piece; The two ends of push pedal back-moving spring are connected with the nail bin clamping plate with push pedal respectively; And lower bearing pin is arranged in the gathering sill at push pedal rear portion, it is characterized in that: described nail supporting base assembly comprises that a side has the nail supporting base of opening, is fixed on forward anvil block of nail supporting base and rear-mounted movably nail bin and tool rest and is fixed on the middle part that blade on the tool rest passes nail bin and is positioned at least two row's nail lines, and the pushing slice of nail on the tool rest is arranged in the nail line of nail bin; The cross section of nail supporting base, anvil block, nail bin and tool rest and blade is more than the triangle; The nail supporting base rear portion is connected with the front end of cradling piece, and the front end of nail bin clamping plate is connected with nail bin, and the push pedal front end is connected with tool rest through steady pin; Being arranged on remain silent its two ends of interior alignment pin of a side of nail supporting base is separately positioned on nail bin and the anvil block; It is corresponding with locating hole on the anvil block to be through outside fix pin rear end and slide connection on the nail bin, front end; Slide is installed in the nail bin outside; The front end of locating rod is connected on the slide, the rear end is connected with the locating rod slide block; Be arranged on the case and mobile locating rod handle is connected with the locating rod slide block, interior fairlead on the blade and outer guide sleeve are installed in respectively on interior alignment pin and the outside fix pin and also can move forward and backward relatively.

This utility model is the cross section of nail supporting base, anvil block, nail bin and tool rest and blade more than the triangle and is provided with; Owing to be polygonized structure; Anvil block and nail bin can be located with nail supporting base respectively; Simultaneously also make tool rest and blade locate fast, thus in assembling process, make each part fast circumferential must be in the location, and raising efficiency of assembling.Respectively interior fairlead and outer guide sleeve on the blade of this utility model; And interior fairlead and outer guide sleeve are installed on interior alignment pin and the outside fix pin respectively and can move forward and backward relatively; Blade can be moved along interior pilot pin and outside fix pin; Can reduce the processing and the assembly precision of blade and inside and outside alignment pin, simplify the structure of stapler, reduce cost of manufacture.

Description of drawings

Below in conjunction with accompanying drawing the embodiment of this utility model is made further detailed description.

Fig. 1 is the structural representation of this utility model surgery with stapler.

Fig. 2 is the structural representation of removing cradling piece of Fig. 1.

Fig. 3 is the structural representation of this utility model nail supporting base.

Fig. 4 is that the A of Fig. 3 is to structural representation.

Fig. 5 is the structural representation of this utility model nail bin.

Fig. 6 is that the B of Fig. 5 is to structural representation.

Fig. 7 is the structural representation that this utility model blade is installed in tool rest and interior alignment pin and outside fix pin.

Fig. 8 is that the C of Fig. 7 is to structural representation.

Fig. 9 is the structural representation that this utility model tool rest is connected with push pedal.

Wherein: alignment pin in the 1-anvil block, 2-, the 3-nail bin, the last pin-and-hole of 3-1-, the 3-2-insert groove, 3-3-follows closely line, pin-and-hole under the 3-4-, 4-blade; Fairlead in the 4-1-, 4-2-outer guide sleeve, 5-tool rest, 5-1-pushing slice of nail, 6-steady pin, 7-push pedal, 8-nail supporting base; The 9-cradling piece, 10-locating rod, 11-locating rod slide block, 12-SR, 13-case, the spacing handle of 14-, 15-ejector pin handle; 16-locating rod handle, 17-slide, 18-outside fix pin, 19-nail bin clamping plate, 19-1-gathering sill, 20-bearing pin, 21-push pedal back-moving spring; The 22-lower bearing pin, the 23-connecting rod, the 24-upper pin, 25-connects bearing pin, the spacing back-moving spring of 26-, the 27-back-moving spring, 28-connects bearing pin.

The specific embodiment

See that shown in Fig. 1～9, the surgery of this utility model is used stapler, comprise cradling piece 9, nail supporting base assembly and ejector pin mechanism and position-limit mechanism.See Fig. 1, shown in 2, cradling piece 9 rear portions of this utility model be equipped with the band handle case 13 and ejector pin mechanism and position-limit mechanism, the front portion of cradling piece 9 is connected with the nail supporting base assembly.The position-limit mechanism of this utility model comprises spacing handle 14, connecting rod 23 and nail bin clamping plate 19; Spacing handle 14 is hinged on the cradling piece 9; Spacing handle 14 can be hinged on the cradling piece 9 through connecting bearing pin 25; Connecting rod 23 two ends are hinged with a side of the top of spacing handle 14 and nail bin clamping plate 19 respectively through upper pin 24 and lower bearing pin 22 respectively, and the two ends of spacing back-moving spring 26 are connected with case 13 with spacing handle 14 respectively, and 14 on spacing handle passes through connecting rod 23 and is connected with nail bin clamping plate 19; Through spacing handle 14 and connecting rod 23 nail bin 3 that is connected with nail bin clamping plate 19 can be moved forward and backward; And nail bin clamping plate 19 are provided with gathering sill 19-1, and the bearing pin 20 that is installed on the cradling piece 9 is arranged in the gathering sill 19-1, to place restrictions on the distance that moves forward and backward of nail bin clamping plate 19; SR 12 is installed on the case 13; Between cradling piece 9 and the SR 12 back-moving spring 27 is installed, the front end of the knob 12 that resets is corresponding with the locating slot on spacing handle 14 tops, makes its front end pin spacing handle 14 or makes spacing handle 14 releases through SR 12 action.See Fig. 1, shown in 2; The ejector pin mechanism of this utility model comprises ejector pin handle 15 and the push pedal 7 that is connected with ejector pin handle 15; Ejector pin handle 15 also is hinged on the cradling piece 9; This ejector pin handle 15 connects bearing pin 28 through another and is hinged on the cradling piece 9, makes ejector pin handle 15 connect bearing pin 28 central axis along it and rotates, and moves forward and backward and drive push pedal 7; The two ends of push pedal back-moving spring 21 are connected with nail bin clamping plate 19 with push pedal 7 respectively; And lower bearing pin 22 is arranged in the gathering sill at push pedal 7 rear portions, when position-limit mechanism is being mediated the position, through after SR 12 lockings, could operate ejector pin handle 15 and make push pedal 7 reaches and drive tool rest 5 and blade 4 and pushing slice of nail 5-1 reach action.

See Fig. 1, shown in 3～9; The nail supporting base assembly of this utility model comprises that a side has the nail supporting base 8 of opening, is fixed on nail supporting base 8 forward anvil blocks 1 and rear-mounted movably nail bin 3 and tool rest 5; The blade 4 that is fixed on the tool rest 5 passes nail bin 3 and is positioned at the middle part that at least two rows follow closely lines; Be arranged on the nail line 3-3 that pushing slice of nail 5-1 on the tool rest 5 is positioned at each nail bin 3; The insert groove 3-2 that nail bin 3 is provided with pin-and-hole 3-1 and following pin-and-hole 3-4 and communicates with last pin-and-hole 3-1 and following pin-and-hole 3-4, outside fix pin 18 and interior location light pin 2 are separately positioned on pin-and-hole 3-1 and following pin-and-hole 3-4, through moving forward and backward of tool rest 5; Blade 4 is moved forward and backward in insert groove 3-2, and pushing slice of nail 5-1 moves forward and backward in the nail line 3-3 of nail bin 3.The cross section of the nail supporting base 8 of this utility model, anvil block 1, nail bin 3 and tool rest 5 and blade 4 is more than the triangle; Can adopt like Fig. 1, shown in 3～9; The cross section of nail supporting base 8, anvil block 1, nail bin 3 and tool rest 5 and blade 4 is the pentagon setting; This polygon is preferably the odd number setting, make anvil block 1 and nail bin 3 fast and nail supporting base 8 position installation, blade 4 can be located with tool rest 5 and be installed on the nail bin 3 fast.See shown in Figure 1; This utility model nail supporting base 8 rear portions are connected with the front end of cradling piece 9, nail supporting base 8 is fixed on the cradling piece 9, and the front end of nail bin clamping plate 19 are connected with nail bin 3; Through moving forward and backward of nail bin clamping plate 19 nail bin 3 is moved forward and backward; Make nail bin 3 be positioned at suture location or open position, push pedal 7 front ends are connected with tool rest 5 through steady pin 6, through moving forward and backward of push pedal 7 tool rest 5 are moved forward and backward; Therefore can drive the blade 4 that is installed on the tool rest 5 and move forward and backward and cut and organize or withdraw from, make the interior suturing nail of pushing slice of nail 5-1 promotion nail bin 3 on the tool rest 5 to the tissue apposition that stays or withdraw from simultaneously.See shown in Figure 9ly, the front end of this utility model push pedal 7 has the projection that matches with tool rest 5 tops, and steady pin 6 is fixed on the projection and tool rest 5 of push pedal 7, and push pedal 7 is fixedly connected with tool rest 5, and easy for installation, the location is reliable.See Fig. 1, shown in 3～6; This utility model is arranged on remain silent interior alignment pin 2 its two ends of a side of nail supporting base 8 and is separately positioned on nail bin 3 and the anvil block 1; Should in alignment pin 2 can be fixed in the following pin-and-hole of nail bin 3 in the 3-4 or in the locating hole of anvil block 1, it is corresponding with locating hole on the anvil block 1 to be through outside fix pin 18 rear ends and slide 17 connections on the nail bin 3, front end, outside fix pin 18 is through in the pin-and-hole 3-1; Slide 17 is installed in nail bin 3 outsides; The front end of locating rod 10 is connected on the slide 17, the rear end is connected with locating rod slide block 11, is arranged on the case 13 and mobile locating rod handle 16 is connected with locating rod slide block 11, moves through the guide protrusions of locating rod handle 16 along case 13; Driving connected locating rod slide block 11 simultaneously moves forward and backward; Move forward and backward and promote locating rod 10, locating rod slide block 11 is moved forward and backward and drive outside fix pin 18 and move forward and backward, when outside fix pin 18 does not stretch out; Tissue is got into from the opening part of nail supporting base 8 one sides; And after locating rod 10 promotes outside fix pin 18 to move forward to the locating hole of anvil block 1, tissue is remained in the nail supporting base 8, in being installed in respectively, interior fairlead 4-1 on this utility model blade 4 and outer guide sleeve 4-2 also can move forward and backward relatively on alignment pin 2 and the outside fix pin 18; When push pedal 7 drives tool rest 5 and blade 4 reaches; Fairlead 4-1 and outer guide sleeve 4-2 move with outside fix pin 18 along interior alignment pin 2 in making, and this utility model sees that for ease of processing and installation interior fairlead 4-1 and the outer guide sleeve 4-2 on Fig. 7～8 this utility model blades 4 axially has opening.

During this utility model work; To organize from nail supporting base 8 openings one side and be placed in the nail supporting base 8; Drive locating rod slide block 11 through operation locating rod handle 16 and move forward, and then locating rod 10 is marched forward, and finally be transmitted to outside fix pin 18 and advance; With the locating hole of outside fix pin 18 front ends entering anvil block 1, to tissue positioned; Mediate spacing handle 14, and drivening rod 23 makes nail bin 3 to the motion of anvil block 1 direction with nail bin clamping plate 19, and in the locating slot on the top of keeping out spacing handle 14 of the front end through SR 12; The kneading position of spacing handle 14 is maintained; Operation ejector pin handle 15 promotes push pedal 7 and drives tool rest 5 reaches, and tool rest 5 reaches drive 4 pairs of tissue cuttings of blade, and pushing slice of nail 5-1 sews up the suturing nail in the nail bin 3 under the effect of anvil block 1 to the tissue that stays simultaneously; Accomplish cutting and stitching simultaneously; After cutting and stitching finishes, press SR 12, under the effect of back-moving spring 27, remove the effect of keeping out to spacing handle 14; Spacing handle 14 resets through the spacing back-moving spring 26 of rear end, and ejector pin handle 15 resets under 21 effects of push pedal back-moving spring.

Claims

1. a surgery is used stapler; Comprise cradling piece (9), nail supporting base assembly and ejector pin mechanism and position-limit mechanism; Said cradling piece (9) rear portion is equipped with case (13) and the ejector pin mechanism and the position-limit mechanism of band handle; The front portion of cradling piece (9) is connected with the nail supporting base assembly, and described position-limit mechanism comprises spacing handle (14), connecting rod (23) and nail bin clamping plate (19), and spacing handle (14) is hinged on the cradling piece (9); Connecting rod (23) two ends are hinged with a side of the top of spacing handle (14) and nail bin clamping plate (19) respectively through upper pin (24) and lower bearing pin (22) respectively, and the two ends of spacing back-moving spring (26) are connected with case (13) with spacing handle (14) respectively; Described ejector pin mechanism comprises ejector pin handle (15) and the push pedal (7) that is connected with ejector pin handle (15); Ejector pin handle (15) is hinged on the cradling piece (9); The two ends of push pedal back-moving spring (21) are connected with nail bin clamping plate (19) with push pedal (7) respectively; Lower bearing pin (22) is arranged in the gathering sill at push pedal (7) rear portion; It is characterized in that: described nail supporting base assembly comprises that a side has the nail supporting base of opening (8), is fixed on the forward anvil block of nail supporting base (8) (1) and rear-mounted movably nail bin (3) and tool rest (5), and the blade (4) that is fixed on the tool rest (5) passes nail bin (3) and is positioned at the middle part that at least two rows follow closely lines, and the pushing slice of nail (5-1) on the tool rest (5) is arranged in the nail line of nail bin (3); The cross section of nail supporting base (8), anvil block (1), nail bin (3) and tool rest (5) and blade (4) is more than the triangle; Nail supporting base (8) rear portion is connected with the front end of cradling piece (9), and the front end of nail bin clamping plate (19) is connected with nail bin (3), and push pedal (7) front end is connected with tool rest (5) through steady pin (6); Being arranged on remain silent its two ends of interior alignment pin (2) of a side of nail supporting base (8) is separately positioned on nail bin (3) and the anvil block (1); It is corresponding with locating hole on the anvil block (1) to be through outside fix pin (18) rear end and slide (17) connection on the nail bin (3), front end; Slide (17) is installed in nail bin (3) outside; The front end of locating rod (10) is connected on the slide (17), the rear end is connected with locating rod slide block (11); Be arranged on the last also mobile locating rod handle (16) of case (13) and be connected with locating rod slide block (11), interior fairlead (4-1) on the blade (4) and outer guide sleeve (4-2) are installed in interior alignment pin (2) respectively and outside fix pin (18) is gone up and can be moved forward and backward relatively.

2. surgery according to claim 1 is used stapler, it is characterized in that: the front end of said push pedal (7) has the projection that matches with tool rest (5) top, and steady pin (6) is fixed on the projection and tool rest (5) of push pedal (7).

3. surgery according to claim 1 is used stapler, it is characterized in that: interior fairlead (4-1) and outer guide sleeve (4-2) on the described blade (4) axially have opening.