CN201108464Y

CN201108464Y - Digestive canal cutting stitching instrument

Info

Publication number: CN201108464Y
Application number: CNU2007200438613U
Authority: CN
Inventors: 周明喜
Original assignee: Individual
Current assignee: Suzhou Beinuo Medical Instruments Co Ltd
Priority date: 2007-10-22
Filing date: 2007-10-22
Publication date: 2008-09-03
Anticipated expiration: 2017-10-22

Abstract

The utility model relates to a alimentary canal cutting suturing instrument which includes a main body, a nail chamber arranged on the main body, a nail push sheet and a cutter arranged in the nail chamber, a connecting rod arranged on the main body and used to push the cutter to move, and a push rod arranged on the main body and used to push the nail push sheet to move; a spring used to reset the connecting rod is connected between the connecting rod and the push rod; after cutting, the connecting rod can automatically return to the initial position, which provides convenience for re-installing the nail chamber.

Description

A kind of alimentary tract cutting stitching device

Technical field

This utility model relates to a kind of alimentary tract cutting stitching device of the usefulness of performing the operation.

Background technology

Used alimentary tract cutting stitching device widely in the rectum low level resection operation, made operation safer.Generally all do not have automatic reset device in the cutting drive mechanism of current alimentary tract cutting stitching device, after each cutting finishes the cutting drive mechanism is resetted, to prepare cutting next time, inconvenient operation.

Summary of the invention

The purpose of this utility model is to provide a kind of alimentary tract cutting stitching device, and the cutting drive mechanism of this alimentary tract cutting stitching device can automatically reset after cutting finishes.

In order to reach above purpose, the scheme that this utility model adopts is:

A kind of alimentary tract cutting stitching device, comprise body, be arranged on nail bin on the described body, be contained in described nail bin inside pushing slice of nail and cutter, be arranged on being used on the described body and promote connecting rod that described cutter moves, be arranged on being used on the described body and promote the push rod that described pushing slice of nail moves, be connected with the spring that connecting rod is resetted between described connecting rod and the push rod.

The rotating cutting spanner that is provided with on the described body, this cutting spanner is provided with pushing block, described connecting rod is provided with groove, and described pushing block and groove match and have two duties at least: under first duty, described pushing block and described groove are separated; Under second duty, described pushing block is positioned at described groove and props up the sidewall of groove.

Offer a chute on the described cutting spanner, described pushing block is arranged in this chute, also is provided with the pushing block spring in this chute, and this pushing block spring one end props up the bottom of described chute, and the other end props up described pushing block.

Be wound with the spanner spring in described the 3rd rotating shaft, an end of this spanner spring is against on the described body, and an other end props up described cutting spanner.

Owing to adopted above technical scheme, so this utility model has following advantage with respect to existing technology: owing to connected a spring that connecting rod is resetted between connecting rod and the push rod, so cutting finishes and can automatically revert to initial position with back link, has made things convenient for and has reinstalled nail bin.

Description of drawings

Accompanying drawing 1 is the overall appearance figure of a kind of alimentary tract cutting stitching device of this utility model;

Accompanying drawing 2 is the structural representation of cutter pushing mechanism in sewing process in a kind of alimentary tract cutting stitching device of this utility model;

Accompanying drawing 3 is the structural representation of cutter pushing mechanism in cutting process in a kind of alimentary tract cutting stitching device of this utility model;

Accompanying drawing 4 for cutter pushing mechanism in a kind of alimentary tract cutting stitching device of this utility model after cutting finishes, the structural representation of cutting drive mechanism before resetting;

Accompanying drawing 5 is the left view of nail bin in a kind of alimentary tract cutting stitching device of this utility model;

Accompanying drawing 6 is the front view of cutter in a kind of alimentary tract cutting stitching device of this utility model;

Accompanying drawing 7 is the front view of driving lever in a kind of alimentary tract cutting stitching device of this utility model;

Accompanying drawing 8 is the front view of cutting wrench assembly in a kind of alimentary tract cutting stitching device of this utility model;

Accompanying drawing 9 is the left view of cutting wrench assembly in a kind of alimentary tract cutting stitching device of this utility model.

Wherein: 1, body; 2, connecting rod; 3, driving lever; 4, knife rest; 5, nail bin; 6, cutter; 7, first rotating shaft; 8, second rotating shaft; 9, nail hole; 10, cutter groove; 11, groove; 12, pushing block; 13, cutting spanner; 14, spring; 15, push rod; 16, pushing slice of nail; 17, the 3rd rotating shaft; 18, disk; 19, pushing block spring; 20, chute; 21, nail anvil; 22, spanner spring; 31, pushing part; 61, blade; 62, blade, 63, depression bar.

The specific embodiment

As shown in Figure 1, a kind of alimentary tract cutting stitching device, comprise body 1, be arranged on the nail bin 5 on the body 1, the pushing slice of nail 16 that is contained in nail bin 5 inside and cutter 6, be arranged on connecting rod 2 that the cutter that is used to promote 6 on the body moves, be arranged on being used on the body 1 and promote the push rod 15 that pushing slice of nail 16 moves, for the cutting drive mechanism can be automatically reset after cutting finishes, this utility model is connected with the spring 14 that connecting rod 2 is resetted between connecting rod 2 and push rod 15.

In order to make cutting convenient, rotatingly on body 1 in the present embodiment be provided with a cutting spanner 13 that can promote connecting rod 2, this cutting spanner 13 is provided with a pushing block 12, offer a groove 11 on the connecting rod 2, when pushing block 13 is positioned at this groove 11, rotates cutting spanner 13 and just can promote connecting rod 2.

Cutting spanner 13 is that the center is provided with a disk 18 with the 3rd rotating shaft 17, offer a chute 20 on this disk 18, pushing block 12 promptly is arranged in this chute 20, and can slide along the depth direction of chute 20, in chute 20, be provided with pushing block spring 19, this pushing block spring 19 is a pressing spring, one end of pushing block spring 19 props up the bottom of chute 20, the other end props up pushing block 12, make pushing block 12 when being compressed, may be collapsed to the inside of chute 20 like this, but can bear along the tangential power of disk 18 circumference.When this groove 11 was positioned at the below of cutting spanner 13, pushing block 12 can be pressed onto in the groove 11 by pushing block 12 and prop up the sidewall of groove 11.Be wound with spanner spring 22 in the 3rd rotating shaft 17, an end of this spanner spring 22 is against on the body 1, and an other end props up cutting spanner 13.

Offer many dog holeses 9 and cutter groove 10 on the nail bin 5 of alimentary tract cutting stitching device, respectively there is at least one dog holes 9 both sides of cutter groove 10, in order to make cutting thoroughly, in the present embodiment cutter 6 can be passed cutter groove 10 slidably along the length direction of cutter groove 10, in order to accomplish sufficient cutting, omit follow-up operation, the blade 61 of cutter 6 is perpendicular to the length direction of cutter groove 10 in the present embodiment.

For cutter 6 can be slided along the length direction of cutter groove 10, the place ahead at connecting rod 2 in the present embodiment is connected with a driving lever 3 by second rotating shaft 8, one end of this driving lever 3 is provided with and can promotes cutter 6 along the pushing part 31 that cutter groove 10 length directions move, and this pushing part 31 props up cutter 6.

The body 1 of a kind of alimentary tract cutting stitching device of this utility model is provided with the push rod 15 that can promote pushing slice of nail 16, cut in order to realize sewing up afterwards earlier, driving lever 3 is connected on this push rod 15 by first rotating shaft 7, first rotating shaft 7 is parallel to second rotating shaft 8, and the line of centres of first rotating shaft 7 and second rotating shaft 8 becomes one greater than zero angle with the glide direction of connecting rod 2, this structure makes that driving lever 3 can be synchronized with the movement with push rod 15 in the sewing process, and under the promotion of connecting rod 2, driving lever 3 can be that rotate at the center with first rotating shaft 7.

Be connected with spring 14 between connecting rod 2 and the push rod 15, can be synchronized with the movement with push rod 15, and cutting can make connecting rod 2 and driving lever 3 automatically reset after finishing at the effect lower link 2 of this spring 14.

Driving lever 3 can accompanying drawing 7 shown in, the front end of this driving lever 3 is provided with pushing part 31, this pushing part 31 is by being pressed on the cutter 6, making driving lever 3 is that the center can promote cutter 6 when rotating and moves along cutter groove 10 with first rotating shaft 7.

In order to make the more steady of cutter 6 operations, be provided with knife rest 4 in nail bin 5 inside in the present embodiment, cutter 6 can be contained on this knife rest 4 slidably along knife rest 4.Easier for installation in order to make, cutter 6 as shown in Figure 6 in the present embodiment: this cutter 6 comprises blade 62, is arranged on blade 61 and depression bar 63 on the blade 62, and depression bar 63 and blade 61 extend along opposite direction with respect to blade 62.The pushing part 31 of driving lever 3 makes the promotion cutter 6 that driving lever 3 can be convenient move along cutter groove 10 by on the depression bar 63 that is pressed in cutter 6.

Two duties of formal definition that match according to pushing block 12 and groove 11 below: first duty, pushing block 12 is separated with groove 11, comprise sewing process, the cutting finish the back etc. non-cut state, pushing block 12 can't be had an effect with groove 11 under this state, promptly can't promote connecting rod 2 by cutting spanner 13; Second duty, pushing block 12 are positioned at groove 11 and prop up the sidewall of groove 11, and promptly in the cutting process, cutting spanner 13 can promote connecting rod 2 by pushing block 12.

In the operation, at first need the operation fixation of tissue is lived, sew up then: pushing slice of nail 16 is squeezed into the tissue that needs stitching with the nail of the seam in the nail bin 5 under the driving of push rod 15, and the seam nail is pushed against by nail supporting base 21 and bends to " B " shape, finishes stitching.Connecting rod 2, driving lever 3 all are synchronized with the movement with push rod 15 in this process, pushing block 12 is in first duty with groove 11, pushing block 12 is compressed in the chute 20 of cutting spanner 13, pushing block 12 is in the state that is separated with groove 11, also can't promote connecting rod 2 even at this moment pull cutting spanner 13, so can't carry out cutting operation, as shown in Figure 2; When the cutting rearward recess 11 that finishes reaches the below of chute 20, pushing block 12 is pressed onto in the groove 11 by pushing block spring 19 and props up the sidewall of groove 11, and pushing block 12 promptly enters second duty with groove 11.

After finishing, stitching just can cut: in second duty, pushing block 12 is positioned at groove 11 and props up the sidewall of groove 11, as shown in Figure 3, to cut spanner 13 and pull certain angle clockwise, the sidewall that pushing block 12 can prop up groove 11 rotates with cutting spanner 13, pushing block 12 moves up gradually with the contact point of groove 11 sidewalls, connecting rod 2 is pushed along body to front slide, and then promotion driving lever 3 is the center rotation with first rotating shaft 7, the depression bar 63 of cutter 6 is pushed in pushing part 31 on the driving lever 3, blade 61 is moved downward along cutter groove 10, and piercing tissue is also vertically streaked whole section needs and is cut and organized, and accomplishes to cut completely.

After cutting finishes, as shown in Figure 4, cutter 6 has moved the cutting stroke, and pushing block 12 just in time is in the top of groove 11 sidewalls, pulls cutting spanner 13 a little again, pushing block 12 will spin off in groove 11, connecting rod 2 is returned to initial position under the traction of spring 14, spur driving lever 3 simultaneously it is resetted, and cutting spanner 13 also automatically resets under the effect of spanner spring 22, this structure makes the cutting drive mechanism automatically reset to initial position after cutting finishes, and is convenient to reinstall nail bin 5.

Claims

1, a kind of alimentary tract cutting stitching device, comprise body (1), be arranged on nail bin (5) on the described body (1), be contained in described nail bin (5) inner pushing slice of nail (16) and cutter (6), be arranged on being used on the described body (1) and promote connecting rod (2) that described cutter (6) moves, be arranged on being used on the described body (1) and promote the mobile push rod (15) of described pushing slice of nail (16), it is characterized in that: be connected with the spring (14) that connecting rod (2) is resetted between described connecting rod (2) and the push rod (15).

2, a kind of alimentary tract cutting stitching device according to claim 1, it is characterized in that: described body (1) is gone up by the 3rd rotating shaft (17) and is provided with cutting spanner (13), this cutting spanner (13) is provided with pushing block (12), described connecting rod (2) is provided with groove (11), described pushing block (12) and groove (11) match and have two duties at least: under first duty, described pushing block (12) is separated with described groove (11); Under second duty, described pushing block (12) is positioned at described groove (11) and props up the sidewall of groove (11).

3, a kind of alimentary tract cutting stitching device according to claim 2, it is characterized in that: offer a chute (20) on the described cutting spanner (13), described pushing block (12) is arranged in this chute (20), also be provided with pushing block spring (19) in this chute (20), these pushing block spring (19) one ends prop up the bottom of described chute (20), and the other end props up described pushing block (12).

4, a kind of alimentary tract cutting stitching device according to claim 2, it is characterized in that: be wound with spanner spring (22) in described the 3rd rotating shaft (17), one end of this spanner spring (22) is against on the described body (1), and an other end props up described cutting spanner (13).