阅读说明：本技术 一种用于牵拉式环形吻合器的接针结构及环形吻合器 (Needle connecting structure for traction type annular anastomat and annular anastomat ) 是由 赵永捷 于 2019-12-10 设计创作，主要内容包括：本发明属于外科手术设备技术领域,特别是涉及一种用于牵拉式环形吻合器的接针结构及环形吻合器,该接针结构包括部分套在食管内的第一套管；还包括设在食管外侧的第二套管；第一套管与第二套管同轴设置且均开有位置对应的过针孔；食管上的切除位置位于两套管连接处与过针孔之间；过针孔包括设在第一套管内壁的第一过针孔以及设在第二套管与第一过针孔对应的第二过针孔；第一套管内部沿轴向放置有牵引针,送针结构通过两个过针孔将牵引针的针尖送入第二套管内；第二套管内设有针尖抓取结构,用于抓取进入第二套管的针尖并将整个牵引针及部分牵引线从食管内牵出。该接针结构及方法不仅使用方便、安全,更能够很大程度的节约手术时间,降低手术风险。(The invention belongs to the technical field of surgical operation equipment, and particularly relates to a needle connecting structure for a traction type annular anastomat and the annular anastomat, wherein the needle connecting structure comprises a first sleeve partially sleeved in an esophagus; the second sleeve is arranged outside the esophagus; the first sleeve and the second sleeve are coaxially arranged and are provided with needle passing holes corresponding to the positions; the cutting position on the esophagus is positioned between the joint of the two cannulas and the needle passing hole; the needle passing holes comprise first needle passing holes formed in the inner wall of the first sleeve and second needle passing holes formed in the second sleeve and corresponding to the first needle passing holes; a traction needle is arranged in the first sleeve along the axial direction, and the needle feeding structure feeds the needle point of the traction needle into the second sleeve through two needle passing holes; a needle point grabbing structure is arranged in the second sleeve and used for grabbing the needle point entering the second sleeve and pulling the whole traction needle and part of the traction line out of the esophagus. The needle connecting structure and the method are convenient and safe to use, can save operation time to a great extent and reduce operation risks.)

1. A needle connecting structure for a traction type annular anastomat comprises a nail anvil assembly; the end part of the nail anvil component is connected with a traction wire, a traction needle is arranged on the traction wire, and the needle tail faces the nail anvil component; the method is characterized in that: the needle connecting structure comprises a first sleeve partially sleeved in the esophagus; the first sleeve is arranged on the outer side of the esophagus and is detachably connected with the second sleeve; the first sleeve and the second sleeve are coaxially arranged and are provided with needle passing holes corresponding in position; the cutting position on the esophagus is positioned between the joint of the two cannulas and the needle passing hole; the needle passing holes comprise first needle passing holes formed in the inner wall of the first sleeve and second needle passing holes formed in the second sleeve and corresponding to the first needle passing holes;

a traction needle is axially arranged in the first sleeve, and the needle feeding structure feeds the needle point of the traction needle into the second sleeve through two needle passing holes;

and a needle point grabbing structure is arranged in the second sleeve and used for grabbing the needle point entering the second sleeve and pulling the whole traction needle and part of the traction line out of the esophagus.

2. A connector structure for a pull-type annular stapler according to claim 1, wherein: the needle feeding structure comprises a supporting body sleeved with the inner wall of the first sleeve and a needle groove assembly for placing a traction needle, wherein the needle point of the traction needle is arranged right below the first needle passing hole; the needle groove assembly is connected to the upper end of the support body through a rotating shaft perpendicular to the axis of the first sleeve; the needle point of the traction needle extends out of the needle groove assembly for a certain distance so as to penetrate through the first needle passing hole when the needle groove assembly rotates upwards;

a rotating wheel is arranged at one end of the bottom of the support body, which is far away from the traction needle, and the axis of the rotating wheel is perpendicular to the axis of the first sleeve pipe; a horizontal connecting shaft fixed with the inner wall of the support body is arranged at the axis of the rotating wheel; a pull rope is arranged outside the rotating wheel; one end of the pull rope is vertically fixed with the needle groove, and the other end of the pull rope penetrates through the first sleeve and extends to the outside of the cut.

3. A connector structure for a pull-type annular stapler according to claim 2, wherein: the needle point of the traction needle penetrates through the esophagus and then enters the second sleeve through the second needle passing hole; and an end cover is arranged at one end of the second sleeve connected with the first sleeve.

4. A connector structure for a pull-type annular stapler according to claim 3, wherein: the needle point grabbing structure comprises a tensioning tube fixed on the inner side of the second sleeve; the tensioning pipe comprises a straight pipe fixed with the inner wall of the end cover and a conical pipe fixed with the tail end of the straight pipe; the diameter of the conical pipe is gradually increased from the side where the straight pipe is located to the other side; the needle point grabbing structure further comprises a handle axially arranged along the second sleeve; one end of the handle penetrates through the end cover, and the other end of the handle is arranged on the inner side of the straight pipe; one end of the handle in the straight tube is provided with at least two arc sector clamping pieces with the diameters increasing from small to large; the arc sector clamping piece is attached to the inner wall of the conical tube; before the needle point is grabbed, the gap between the adjacent arc sector clamping pieces is over against the second needle passing hole, and the needle point extending into the second sleeve enters the gap; when the needle point is grabbed, the handle can be moved outwards, all the arc sector clamping pieces move outwards along with the handle and are tensioned and gathered together, and the needle point is grabbed in the gathering process and the whole traction needle is brought into the second sleeve.

5. A connector structure for a pull-type annular stapler according to claim 4, wherein: the handle is a flat block body; the end cover is axially provided with a first through hole matched with the handle; the outer side of the end cover is also provided with a clamping groove for clamping the handle; the center of the clamping groove coincides with the center of the through hole.

6. A connector structure for a pull-type annular stapler according to claim 4, wherein: and scales or marks for indicating whether the traction needle completely enters the second sleeve are arranged on the handle.

7. A connector structure for a pull-type annular stapler according to claim 4, wherein: one end of the second sleeve, which is far away from the handle, is flush with the position of the first needle passing hole.

8. A connector structure for a pull-type annular stapler according to claim 1, wherein: the needle feeding structure comprises an inclined supporting plate which is arranged in the first sleeve and used for guiding the traction needle to enter the second sleeve; before traction, the traction needle is arranged on the inclined support plate in advance, and the needle point is opposite to the two needle passing holes; a through hole II is formed in the inclined supporting plate corresponding to the needle tail of the traction needle;

the traction needle can enter the second sleeve along the oblique supporting plate; one end of the traction piece is positioned outside the stomach incision, and the other end of the traction piece is fixed with the traction needle in the first sleeve through the second through hole.

9. A connector structure for a pull-type annular stapler according to claim 1, wherein: the needle feeding structure is also provided with a stopper for preventing the traction needle from shifting before operation.

10. A pull-type annular anastomat is characterized in that: the annular anastomat carries the needle connecting structure of any one of claims 1 to 9; the nail anvil component of the annular anastomat is provided with a traction needle and a traction line fixed at the needle tail of the traction needle; the traction needle is preset on the needle feeding structure in the first sleeve.

Technical Field

The invention belongs to the technical field of surgical operation equipment, and particularly relates to a needle connecting structure for a traction type annular anastomat and the annular anastomat.

Background

At present, various surgical circular cutting anastomats are widely used for anastomosis of various cavities and tracts in surgical operation, so that the operation time can be reduced, and the operation quality can be improved. The annular cutting anastomat can hit two rows of annularly-crossed arranged staples into the cavity esophagus to enable the two layers of cavity esophagus to be sewn together, and the built-in annular knife immediately cuts off redundant esophagus to form a circular anastomotic stoma to finish the anastomosis of the cavity esophagus.

Disclosure of Invention

In order to solve the technical problems, ensure the safety of the operation and shorten the operation time, the invention provides the needle connecting structure for the traction type annular anastomat and the annular anastomat.

In order to achieve the purpose, the invention adopts the following specific technical scheme:

a needle connecting structure for a traction type annular anastomat comprises a nail anvil assembly; the end part of the nail anvil component is connected with a traction wire, a traction needle is arranged on the traction wire, and the needle tail faces the nail anvil component; the needle connecting structure comprises a first sleeve partially sleeved in the esophagus; the first sleeve is arranged on the outer side of the esophagus and is detachably connected with the second sleeve; the first sleeve and the second sleeve are coaxially arranged and are provided with needle passing holes corresponding in position; the cutting position on the esophagus is positioned between the joint of the two cannulas and the needle passing hole; the needle passing holes comprise first needle passing holes formed in the inner wall of the first sleeve and second needle passing holes formed in the second sleeve and corresponding to the first needle passing holes;

a traction needle is axially arranged in the first sleeve, and the needle feeding structure feeds the needle point of the traction needle into the second sleeve through two needle passing holes;

and a needle point grabbing structure is arranged in the second sleeve and used for grabbing the needle point entering the second sleeve and pulling the whole traction needle and part of the traction line out of the esophagus.

Furthermore, the needle feeding structure comprises a supporting body sleeved with the inner wall of the first sleeve and a needle groove assembly for placing a traction needle, wherein the needle point of the traction needle is arranged right below the first needle passing hole; the needle groove assembly is connected to the upper end of the support body through a rotating shaft perpendicular to the axis of the first sleeve; the needle point of the traction needle extends out of the needle groove assembly for a certain distance so as to penetrate through the first needle passing hole when the needle groove assembly rotates upwards;

a rotating wheel is arranged at one end of the bottom of the support body, which is far away from the traction needle, and the axis of the rotating wheel is perpendicular to the axis of the first sleeve pipe; a horizontal connecting shaft fixed with the inner wall of the support body is arranged at the axis of the rotating wheel; a pull rope is arranged outside the rotating wheel; one end of the pull rope is vertically fixed with the needle groove, and the other end of the pull rope penetrates through the first sleeve and extends to the outside of the cut.

Further, the needle point of the traction needle penetrates through the esophagus and enters the second sleeve through the second needle passing hole; and an end cover is arranged at one end of the second sleeve connected with the first sleeve.

Further, the needle tip grabbing structure comprises a tensioning tube fixed on the inner side of the second sleeve; the tensioning pipe comprises a straight pipe fixed with the inner wall of the end cover and a conical pipe fixed with the tail end of the straight pipe; the diameter of the conical pipe is gradually increased from the side where the straight pipe is located to the other side; the needle point grabbing structure further comprises a handle axially arranged along the second sleeve; one end of the handle penetrates through the end cover, and the other end of the handle is arranged on the inner side of the straight pipe; one end of the handle in the straight tube is provided with at least two arc sector clamping pieces with the diameters increasing from small to large; the arc sector clamping piece is attached to the inner wall of the conical tube; before the needle point is grabbed, the gap between the adjacent arc sector clamping pieces is over against the second needle passing hole, and the needle point extending into the second sleeve enters the gap; when the needle point is grabbed, the handle can be moved outwards, all the arc sector clamping pieces move outwards along with the handle and are tensioned and gathered together, and the needle point is grabbed in the gathering process and the whole traction needle is brought into the second sleeve.

Further, the handle is a flat block; the end cover is axially provided with a first through hole matched with the handle; the outer side of the end cover is also provided with a clamping groove for clamping the handle; the center of the clamping groove coincides with the center of the through hole.

Furthermore, scales or marks for indicating whether the traction needle completely enters the second sleeve are arranged on the handle.

Further, one end, far away from the handle, of the second sleeve is flush with the position of the first needle passing hole.

Further, the needle feeding structure comprises an inclined support plate which is arranged in the first sleeve and used for guiding the traction needle to enter the second sleeve; before traction, the traction needle is arranged on the inclined support plate in advance, and the needle point is opposite to the two needle passing holes; a through hole II is formed in the inclined supporting plate corresponding to the needle tail of the traction needle;

the traction needle can enter the second sleeve along the oblique supporting plate; one end of the traction piece is positioned outside the stomach incision, and the other end of the traction piece is fixed with the traction needle in the first sleeve through the second through hole.

Furthermore, a stopper for preventing the traction needle from shifting before operation is also arranged on the needle feeding structure.

Furthermore, the invention also discloses an annular anastomat, wherein the annular anastomat carries the needle connecting structure of any one of claims 1 to 9; the nail anvil component of the annular anastomat is provided with a traction needle and a traction line fixed at the needle tail of the traction needle; the traction needle is preset on the needle feeding structure in the first sleeve.

The invention has the advantages and positive effects that:

according to the invention, the traction needle is arranged in the needle groove of the first sleeve and is placed into the esophagus together, so that the needle tip can be prevented from scratching the esophageal intima; meanwhile, the first sleeve can enable the traction needle to penetrate through the esophagus through the needle passing hole and send the needle tip into the second sleeve, and the whole traction needle and part of traction line are pulled out of the esophagus through the needle tip grabbing structure in the second sleeve; the safe perforation of the traction needle is realized; furthermore, the doctor can only stretch into length with the pliers and judge fenestrate approximate position by the sensation before, in this patent the handle was kept away from to the second sleeve one end and the first position parallel and level of passing the pinhole, can follow the position at second sleeve tip place and observe and cross the pinhole position, perforate more accurately.

In a word, the invention has reasonable and practical structure, and can greatly reduce the potential safety hazard and time cost of the operation.

Drawings

FIG. 1 is a schematic view of a structure of a receiving needle according to example 1 of the present invention before perforation of a pulling needle;

FIG. 2 is a schematic view showing the piercing of a pulling pin of the needle attaching structure in example 1 of the present invention;

FIG. 3 is a front view of the first socket in embodiment 1 of the present invention;

FIG. 4 is a front view of a second sleeve in embodiment 1 of the invention;

FIG. 5 is a right side view of the first casing in embodiment 1 of the invention;

FIG. 6 is a right side view of a second sleeve in embodiment 1 of the invention;

FIG. 7 is a side view of the tip cap in embodiment 1 of the present invention;

FIG. 8 is an enlarged view of a circular arc groove at the contact position of the second sleeve and the traction pin in embodiment 1 of the present invention;

FIG. 9 is a schematic view of a first sleeve in embodiment 2 of the present invention;

FIG. 10 is an enlarged partial view of FIG. 9;

FIG. 11 is a schematic illustration of the cardia site of the invention.

In the figure: 1. a first sleeve; 11. a first pinhole; 12. a support body; 13. a needle slot assembly; 13a, a first stopper; 14. a rotating shaft; 15. a rotating wheel; 16. pulling a rope; 17. an oblique support plate; 17a and a second through hole; 17b, a second stopper; 18. a pulling member; 2. a second sleeve; 21. a second pinhole; 22 end caps; 221. a first through hole; 222. a card slot; 23. a tensioning tube; 231. a straight pipe; 232. a tapered tube; 24. a handle; 25. the arc sector clamping piece; 26. an arc groove; 3. a nail anvil component; 4. a traction needle; 41. a pull wire; 5. (ii) an esophagus; 6. cardia; 7. and (6) cutting.

Detailed Description

For further understanding of the contents, features and effects of the present invention, reference will now be made to the drawings in the following embodiments of the present invention; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; rather than all embodiments. Based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

As shown in fig. 1 to 11, the invention discloses a needle connecting structure for a pull-type annular anastomat, which comprises an anvil component 3; the end part of the nail anvil component 3 is connected with a traction line 41, a traction needle 4 is arranged on the traction rope 16, and the needle tail faces the nail anvil component 3; the needle connecting structure comprises a first sleeve 1 partially sleeved in an esophagus 5; the esophagus opening device also comprises a second sleeve 2 which is arranged outside the esophagus 5 and is detachably connected with the first sleeve 1; the first sleeve 1 and the second sleeve 2 are coaxially arranged and are provided with needle passing holes corresponding in position; the position to be cut on the esophagus 5 is positioned between the joint of the two cannulas and the needle passing hole, namely the length of the first cannula 1 extending into the esophagus 5 needs to enable the needle passing hole to pass through the position to be cut for a certain distance; the first sleeve 1 and the second sleeve 2 can be connected by adopting the clamping, inserting and the like in the prior art;

the first sleeve 1 is used for receiving a traction needle 4 carried on the nail anvil component 3, and then the traction needle 4 passes through the esophagus 5 through the needle passing hole and sends the needle point into the second sleeve 2;

the second sleeve 2 is used for grabbing a needle point and pulling the whole traction needle 4 and part of the traction line 41 out of the esophagus 5; the second cannula 2 is detachably connected to the first cannula 1, so that the second cannula 2 can be detached from the first cannula 1 after the entire needle 4 has been received, and the needle 4 can then be released from the second cannula 2.