SURGICAL LINEAR STAPLER

• US 20170055991A1
• Filed: 03/17/2016
• Published: 03/02/2017
• Est. Priority Date: 04/20/2015
• Status: Active Grant

• Current Assignee: Medi Tulip Co., Ltd.
• Original Assignee: Medi Tulip Co., Ltd.
• Inventors: KANG, Min Woong
• Granted Patent: US 10,383,628 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 10/02 Instruments for taking cell samples or for biopsy A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 2017/07228 Arrangement of the staples
• CPC Class Codes: A61B 2017/07235 containing different staples, e.g. staples of different shapes, sizes or materials
• CPC Class Codes: A61B 2017/07242 achieving different staple heights during the same shot, e.g. using an anvil anvil having different heights or staples of different sizes
• CPC Class Codes: A61B 2017/07257 characterised by its anvil
• CPC Class Codes: A61B 2017/07271 characterised by its cartridge
• CPC Class Codes: A61B 2017/07285 characterised by its cutter
• CPC Class Codes: A61B 2090/0807 Indication means
• CPC Class Codes: A61B 90/92 coded with colour

Abstract

Disclosed is a surgical linear stapler comprising: a staple cartridge which is internally loaded with staples for stapling a surgical site; a cartridge accommodating channel which is formed with a cartridge accommodating groove to accommodate the staple cartridge therein; an anvil which corresponds to the staple cartridge and shapes the staple discharged from the staple cartridge; and a cutter which moves along a lengthwise direction of the staple cartridge by external force and cuts a surgical site arranged in between the staple cartridge and the anvil, in which distances from the cutting section of the surgical site to opposite stapling lines are different from each other, thereby stably and conveniently obtaining tissue for pathological examination, which is not damaged by a staple.

Claims

1. A surgical linear stapler comprising:

a staple cartridge which is internally loaded with staples for stapling a surgical site;

a cartridge accommodating channel which is formed with a cartridge accommodating groove to accommodate the staple cartridge therein;

an anvil which corresponds to the staple cartridge and shapes the staple discharged from the staple cartridge; and

a cutter which moves along a lengthwise direction of the staple cartridge by external force and cuts the surgical site arranged in between the staple cartridge and the anvil,

wherein the staple cartridge comprises a second cutter guide for guiding the cutter to move along a lengthwise direction of the staple cartridge, and a cartridge body formed with one or more rows of left staple discharge holes and one or more rows of right staple discharge holes arranged at opposite sides of the second cutter guide,

the one or more rows of right staple discharge holes have a first row of right staple discharge holes the most adjacent to the second cutter guide in a rightward direction, and the one or more rows of left staple discharge holes have a first row of left staple discharge holes the most adjacent to the second cutter in a leftward direction, and

the first row of right staple discharge holes is more distant from the second cutter guide than the first row of left staple discharge holes so as to obtain a tissue area for pathological examination, which is not damaged by the staple, from a first surgical site to be removed by the cutter.

2. The surgical linear stapler according to claim 1, further comprising a protrusion which protrudes on a top of the cartridge body and is arranged between the first row of right staple discharge holes and the second cutter guide and presses and holds an area near the cutting section when the surgical site is cut.

3. The surgical linear stapler according to claim 1, further comprising an indicator which is arranged in at least one of an outer surface of the anvil and an outer surface of the cartridge accommodating channel and indicates a position of the one or more rows of right staple discharge holes so that the tissue area for pathological examination is included in the first surgical site.

4. A surgical linear stapler comprising:

a staple cartridge which is internally loaded with staples for stapling a surgical site;

a cartridge accommodating channel which is formed with a cartridge accommodating groove to accommodate the staple cartridge therein;

an anvil which corresponds to the staple cartridge and shapes the staple discharged from the staple cartridge; and

a cutter which is arranged in a back of the staple cartridge and cuts the surgical site arranged in between the staple cartridge and the anvil while moving along a lengthwise direction of the staple cartridge by external force,

wherein the anvil comprises a first cutter guide for guiding the cutter to move along a lengthwise direction of the anvil, one or more rows of right anvil grooves having a first row of right anvil grooves the most adjacent to the first cutter guide in a rightward direction with respect to a widthwise direction of the anvil, one or more rows of left anvil grooves having a first row of left anvil grooves the most adjacent to the first cutter guide in a leftward direction with respect to the widthwise direction of the anvil, and

a first distance from a center line of a first row of right anvil grooves to a center line of the first cutter guide is greater than a second distance from a center line of a first row of left anvil grooves to the center line of the first cutter guide so as to obtain a tissue area for pathological examination, which is not damaged by the staple, from a first surgical site to be removed by the cutter.

5. The surgical linear stapler according to claim 4, wherein the one or more rows of right anvil grooves comprises a second row of right anvil grooves formed at a right side of the first row of right anvil grooves,

the one or more rows of left anvil grooves a second row of left anvil grooves formed at a left side of the first row of left anvil grooves, and a third row of left anvil grooves formed at a left side of the second row of left anvil grooves, and

the first distance is equal to a third distance from a center line of the second row of left anvil grooves to a center line of the first cutter guide.

6. The surgical linear stapler according to claim 5, wherein a groove depth of the first row of right anvil grooves is shallower than a groove depth of the second row of right anvil grooves so as to more firmly hold an area near to the first cutter guide within an area to be stapled by the staple in the first surgical site.

7. The surgical linear stapler according to claim 5, wherein a groove depth of the one or more rows of left anvil grooves is shallower than a groove depth of the one or more rows of right anvil grooves so as to make a height of a stapling area of a second surgical site to be remained in a human body be lower than a height of a stapling area of the first surgical site.

8. The surgical linear stapler according to claim 4, wherein the staple cartridge comprises a second cutter guide for guiding the cutter to move along the lengthwise direction of the staple cartridge, and a cartridge body which is formed with one or more rows of right staple discharge holes corresponding to the one or more rows of right anvil grooves and one or more rows of left staple discharge holes corresponding to the one or more rows of left anvil grooves, and

a protrusion protrudes on a top of the cartridge body and is arranged in between the second cutter guide and a first row of right staple discharge holes of the one or more rows of right staple discharge holes.

9. The surgical linear stapler according to claim 4, wherein a leg of a right staple shaped by a right anvil groove of the one or more rows of right anvil grooves and a leg of a left staple shaped by a left anvil groove of the one or more rows of left anvil grooves are different in length from each other.

10. The surgical linear stapler according to claim 9, further comprising a right pressing member for pressing and discharging the right staple toward the outside of a right staple discharge hole, and a left pressing member for pressing and discharging the left staple toward the outside of a left staple discharge hole,

wherein the right pressing member and the left pressing member are different in length from each other.

11. The surgical linear stapler according to claim 5, wherein the staple cartridge comprises a second cutter guide for guiding the cutter to move along the lengthwise direction of the staple cartridge, and a cartridge body which is formed with one or more rows of right staple discharge holes corresponding to the one or more rows of right anvil grooves and one or more rows of left staple discharge holes corresponding to the one or more rows of left anvil grooves, and

a protrusion protrudes on a top of the cartridge body and is arranged in between the second cutter guide and a first row of right staple discharge holes of the one or more rows of right staple discharge holes.

12. The surgical linear stapler according to claim 6, wherein the staple cartridge comprises a second cutter guide for guiding the cutter to move along the lengthwise direction of the staple cartridge, and a cartridge body which is formed with one or more rows of right staple discharge holes corresponding to the one or more rows of right anvil grooves and one or more rows of left staple discharge holes corresponding to the left anvil groove the one or more rows of left anvil grooves, and

a protrusion protrudes on a top of the cartridge body and is arranged in between the second cutter guide and a first row of right staple discharge holes of the one or more rows of right staple discharge holes.

13. The surgical linear stapler according to claim 7, wherein the staple cartridge comprises a second cutter guide for guiding the cutter to move along the lengthwise direction of the staple cartridge, and a cartridge body which is formed with one or more rows of right staple discharge holes corresponding to the one or more rows of right anvil grooves and one or more rows of left staple discharge holes corresponding to the one or more rows of left anvil grooves, and

a protrusion protrudes on a top of the cartridge body and is arranged in between the second cutter guide and a first row of right staple discharge holes of the one or more rows of right staple discharge holes.

14. The surgical linear stapler according to claim 5, wherein a leg of a right staple shaped by a right anvil groove of the one or more rows of right anvil grooves and a leg of a left staple shaped by a left anvil groove of the one or more rows of left anvil grooves are different in length from each other.

15. The surgical linear stapler according to claim 6, wherein a leg of a right staple shaped by a right anvil groove of the one or more rows of right anvil grooves and a leg of a left staple shaped by a left anvil groove of the one or more rows of left anvil grooves are different in length from each other.

16. The surgical linear stapler according to claim 7, wherein a leg of a right staple shaped by a right anvil groove of the one or more rows of right anvil grooves and a leg of a left staple shaped by a left anvil groove of the one or more rows of left anvil grooves are different in length from each other.

17. A surgical linear stapler comprising:

a staple cartridge which is internally loaded with staples for stapling a surgical site;

a cartridge accommodating channel which is formed with a cartridge accommodating groove to accommodate the staple cartridge therein;

an anvil which corresponds to the staple cartridge and shapes the staple discharged from the staple cartridge; and

a cutter which moves along a lengthwise direction of the staple cartridge by external force and cuts a surgical site arranged in between the staple cartridge and the anvil,

wherein the staple cartridge comprises a second cutter guide for guiding the cutter to move along a lengthwise direction of the staple cartridge, and a cartridge body formed with one or more rows of left staple discharge holes and one or more rows of right staple discharge holes arranged at opposite sides of the second cutter guide, and

the surgical site comprises a first surgical site to be removed by the cutter, and a second surgical site to be remained in a human body, and

a first right stapling line stapled by a first row of right staples is formed on the first surgical site, and a first left stapling line stapled by a first row of left staples is formed on the second surgical site,

wherein the distance between a cutting section of the surgical site and the first right stapling line which is the nearest to the cutting section in the rightward direction is greater than the distance between the cutting section and the first left stapling line which is the nearest to the cutting section in the leftward direction in order to obtain a tissue area for pathological examination, which is not damaged by staples, from the first surgical site.

18. The surgical linear stapler according to claim 17, wherein the distance between the cutting section and the first right stapling line is equal to the distance between the cutting section and a second left stapling line in the leftward direction among the stapling lines formed on the second surgical site.

19. The surgical linear stapler according to claim 17, further comprising a protrusion which protrudes on a top of the cartridge body and is arranged between a first row of right staple discharge holes the most adjacent to the second cutter guide in the rightward direction and the second cutter guide, and presses and holds an area near the cutting section when the surgical site is cut.

20. The surgical linear stapler according to claim 17, further comprising an indicator which is arranged in at least one of an outer surface of the anvil and an outer surface of the cartridge accommodating channel and indicates a position of the one or more rows of right staple discharge holes so that the tissue area for pathological examination is included in the first surgical site.