CN114403961B - Suturing nail and surgical suturing device - Google Patents
Suturing nail and surgical suturing device Download PDFInfo
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- CN114403961B CN114403961B CN202111653658.9A CN202111653658A CN114403961B CN 114403961 B CN114403961 B CN 114403961B CN 202111653658 A CN202111653658 A CN 202111653658A CN 114403961 B CN114403961 B CN 114403961B
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- 230000000694 effects Effects 0.000 abstract description 12
- 238000003780 insertion Methods 0.000 abstract description 5
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- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 11
- 238000013461 design Methods 0.000 description 5
- 238000001356 surgical procedure Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000013536 elastomeric material Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000011902 gastrointestinal surgery Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07257—Stapler heads characterised by its anvil
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07271—Stapler heads characterised by its cartridge
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07278—Stapler heads characterised by its sled or its staple holder
Abstract
The application provides a stitching nail which comprises a support column and at least two nail legs positioned on one side of the support column, wherein the first ends of the nail legs are connected with the support column, the second ends of the nail legs are free ends, and the nail legs are provided with inverted teeth with tooth points facing the support column; during suturing, the second ends of the staple legs are oriented toward the tissue to be sutured for removable insertion into the tissue to be sutured. The tissue is easy to suture, and the suture effect is good. The application also provides a surgical stitching instrument with the stitching nail, which can be used for stitching quickly and effectively, and is low in implementation condition and convenient to implement.
Description
Technical Field
The application relates to the technical field of medical instruments, in particular to a suture nail and a surgical suture instrument.
Background
Along with the development of medical instruments, more and more functional stitching nail products are applied to clinic, and the application range of the stitching nail products relates to various fields of gastrointestinal surgery, hepatobiliary surgery, thoracic surgery, urinary surgery, gynaecology and the like, and the surgical stitching instrument becomes an indispensable auxiliary medical instrument in the stitching process of human tissues. The surgical suture device has the advantages of less bleeding in operation, shorter operation time, reduced manual operation error, infection avoidance, quick postoperative function recovery and the like.
The staples used in the surgical stapler are usually a plurality of single staples, the surgical stapler comprises a staple cartridge and a staple anvil, a staple pushing mechanism is arranged in the staple cartridge, the staple pushing mechanism comprises a staple pushing slider capable of moving along the far and near direction and a plurality of staple pushers capable of moving along the up and down direction, the bottoms of the staples are clamped at the tops of the staple pushers, and the staple pushers are sequentially arranged from near to far. The nail pushing slider is provided with an inclined plane, the nail pushing slider moves far away in the process of suturing human tissues by the surgical stitching instrument, the inclined plane on the nail pushing slider contacts with the smooth surface at the bottom of the nail pushing instrument, the nail pushing instrument moves upwards along the inclined plane, the U-shaped nail penetrates out of the tissues under the pushing of the nail pushing instrument and is inserted into the nail pit on the nail anvil, and the U-shaped nail is bent back to penetrate through the tissues along the nail pit modeling, so that the tissues are stitched fast and effectively, and the nail pushing slider continues to move far away and gradually pushes all the nail pushing instruments at the far side.
However, since the staples are bent back through the tissue during suturing, the staples need to be bent in two directions (i.e., a direction parallel to the plane of the tissue to be sutured and a direction perpendicular to the plane of the tissue to be sutured), resulting in high strength requirements for the staples themselves, high strength requirements for the drive shaft in the surgical stapler, and complex structural design requirements for the staple pits in the surgical stapler. In addition, since the used staples are a plurality of single staples, the assembly process is complicated and the problem of easy neglected loading exists, and when different types of staples are accommodated in the staple cartridge of the used surgical stapler, the problem of easy misplacement exists. In addition, in the process of suturing tissues by the surgical stapler, the staples are closed (i.e. the staples are closed but the tissues are not sutured), and because the staples are used as a plurality of single staples, the staples are scattered in the body, and therefore, an additional means is required to clean the staples, so that the operation efficiency is reduced.
Disclosure of Invention
First, the technical problem to be solved
In view of the problems with the above-described techniques, the present application addresses, at least to some extent. Therefore, a first object of the present application is to provide a suturing nail which is easier to suture tissue and has a good suturing effect.
A second object of the present application is to propose a surgical stapler with the above staples.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the application comprises the following steps:
the application provides a stitching nail, which comprises a support column and at least two nail legs positioned on one side of the support column, wherein the first ends of the nail legs are connected with the support column, the second ends of the nail legs are free ends, and the nail legs are provided with inverted teeth with tooth points facing the support column; during suturing, the second ends of the staple legs are oriented toward the tissue to be sutured for removable insertion into the tissue to be sutured.
Optionally, the stitching nail is a U-shaped nail, the U-shaped nail is provided with two nail legs, namely a first nail leg and a second nail leg, the first nail leg and the second nail leg are positioned in the same plane, and the first nail leg and the second nail leg are provided with inverted teeth with tooth tips facing the supporting column; or,
the stitching nail is the stitching nail area, and the stitching nail area has a plurality of nail legs, and the first end of every nail leg all is connected with the support column, and the second end of every nail leg is the free end, and a plurality of nail legs are arranged in proper order along the extending direction of support column to a plurality of nail legs set up in the coplanar, all are provided with the pawl of tooth point orientation support column on every nail leg.
Optionally, the first side of the nail leg is provided with a plurality of inverted teeth which are sequentially arranged along the extending direction of the nail leg, and the second side of the nail leg opposite to the first side is provided with a plurality of inverted teeth which are sequentially arranged along the extending direction of the nail leg; the first side of the nail leg is the side near the first end of the support column, and the second side of the nail leg is the side near the second end of the support column.
Optionally, all the inverted teeth on the nail leg are sequentially arranged along the extending direction of the nail leg; all the inverted teeth on the nail leg are uniformly distributed along the extending direction of the nail leg.
Optionally, the inverted tooth is columnar, and the included angle between the inverted tooth and the nail leg is 15-40 degrees; the tooth tip forms a first active surface parallel to the support column.
Optionally, the staple leg includes interconnect's stitch portion and kink, and the kink is kept away from the support column setting for stitch portion, and the pawl setting is on stitch portion, and the first end of kink forms the free end.
Optionally, the free end has a piercing slope, and the second end of the bending part is provided with a recess.
Optionally, in the staple tape, adjacent staple legs are arranged in parallel, the second end of each staple leg has a piercing slope extending from the second end of the staple leg to the end of the support column, and the piercing slopes of each staple leg are oriented in the same direction.
Optionally, in the stitching nail belt, adjacent nail legs are arranged in parallel, and an included angle between each nail leg and the supporting column is 60-80 degrees.
In another aspect, the present application provides a surgical stapler including a staple belt, a cartridge assembly, and a staple anvil; the nail bin assembly comprises a nail bin and a nail pushing sliding block accommodated in the nail bin, a nail groove extending to the inside of the nail bin and extending in the far and near directions is formed in the top end of the nail bin, and a nail pushing sheet is arranged on the nail pushing sliding block and is upwards inserted into the nail groove; the nail anvil is positioned above the nail bin, and a nail pit for accommodating the second end of each nail leg is formed in the surface of the nail anvil facing the nail bin at a position corresponding to the nail groove;
the stitching nail belt is clamped in the nail groove, and the second end of each nail leg faces the nail pit; the nail pushing slide block drives the nail pushing sheet to move along the nail groove in the far and near directions, and the nail pushing sheet is provided with a pushing inclined surface which is contacted with the bottom of the support column so as to guide the nail legs to be inserted into the nail pits one by one along the pushing inclined surface.
(III) beneficial effects
The beneficial effects of the application are as follows:
1. the application provides a novel suturing nail, wherein the nail leg of the novel suturing nail is provided with a inverted tooth structure, and the suturing nail can be anchored in tissues due to the inverted tooth structure, so that the suturing nail is not easy to slip off the tissues after suturing, and the suturing stability of the suturing nail is enhanced. And through set up the pawl structure on the nail leg, with the direct insertion tissue of staple, need not to buckle after the nail leg penetrates the tissue or only need once buckle just can stabilize the suture tissue, need not to buckle the back of staple twice and wear the tissue, when can effectively stitch the tissue fast, reduced the intensity requirement to staple itself, also reduced the intensity requirement to the drive shaft in the surgical stapler, the structural design requirement to the nail hole in the surgical stapler to greatly reduced cost.
2. The staple tape provided by the application has more staple legs than one staple, and the required number of the staple tape is far less than that of the required staples in order to realize the same stapling effect, so that the stapling process of the surgical stapler is simple and convenient, the stapling is not easy to miss, and the stapling is not easy to miss when different types of staples are required to be accommodated in the staple bin of the surgical stapler.
3. The staple legs on the staple belt are more than the staple legs on one U-shaped staple, so that the situation that the staple belt is completely empty and closed is difficult to occur in the process that the surgical stapler uses the staple belt to stitch tissues, the situation that staples are scattered in a body in an operation is avoided, and the operation efficiency is improved.
Drawings
The application is described with the aid of the following figures:
FIG. 1 is a schematic side view of a staple of example 1 of the present application;
FIG. 2 is a schematic front view of a staple of example 1 of the present application;
FIG. 3 is a schematic top view of the staple legs of example 1 of the present application;
FIG. 4 is a schematic side view of a staple of example 2 of the present application;
FIG. 5 is a schematic side view of example 2 of the present application after stapling;
FIG. 6 is a schematic side view of a staple tape of example 3 of the present application;
FIG. 7 is a schematic front view of a staple tape of example 3 of the present application;
FIG. 8 is an exploded view of the surgical stapler of example 3 of the present application;
FIG. 9 is a schematic view showing the structure of a staple pusher carriage for driving a staple tape to staple tissue in accordance with embodiment 3 of the present application;
FIG. 10 is a schematic side view of a staple tape of example 4 of the present application;
FIG. 11 is a schematic view showing the structure of the embodiment 4 of the application in which the ejector pin sled drives the tape staples;
fig. 12 is a schematic side view of a staple tape of example 5 of the present application.
[ reference numerals description ]
1: a support column; 11: an arcuate convex surface;
2: a first leg; 21: chamfering; 22: a first puncture bevel; 23: a first active surface; 24: a first suture part; 25: a first bending part; 26: a first concave portion;
3: a second leg; 33: a second puncture bevel; 34: a second suture part; 35: a second bending part; 36: a second concave portion;
4: nailing legs; 42: a puncture inclined plane; 43: a suture part; 44: a bending part; 45: a recessed portion;
5: a staple cartridge; 51: a nail groove; 52: a first feed slot;
6: a nail pushing slide block; 61: nail pushing sheets; 62: pushing the inclined plane;
7: a staple anvil; 71: a second active surface; 72: nailing pits; 73: a second feed slot;
8: a layer of bioabsorbable elastomeric material.
Detailed Description
The application will be better explained by the following detailed description of the embodiments with reference to the drawings. It should be noted that "proximal" as referred to herein refers to a side closer to the operator, and "distal" refers to a side closer to the patient. References herein to "upper", "lower", "front", "rear", "left", "right", etc. are made to the orientation of fig. 8, wherein the near-to-far direction is also the rear-to-front direction.
Example 1
As shown in fig. 1 to 3, the present embodiment provides a staple. The stitching nail comprises a support column 1, a first nail leg 2 and a second nail leg 3, wherein the first end of the first nail leg 2 is connected with the first end of the support column 1, the first end of the second nail leg 3 is connected with the second end of the support column 1, the second end of the first nail leg 2 and the second end of the second nail leg 3 are free ends, and the support column 1, the first nail leg 2 and the second nail leg 3 are positioned in the same plane; the first nail leg 2 and the second nail leg 3 are provided with inverted teeth 21 with tooth tips facing the support column 1; during the suturing process, the second ends of the first pin leg 2 and the second pin leg 3 face the tissue to be sutured, the suturing nail moves towards the tissue to be sutured, and the second ends of the first pin leg 2 and the second pin leg 3 can be inserted into the tissue to be sutured.
After the suturing nail is inserted into the tissue, the suturing nail can be anchored in the tissue due to the inverted tooth 21, so that the suturing nail is not easy to slip off the tissue after suturing, and the suturing stability of the suturing nail is enhanced. And the applicant found through the research that through setting up the pawl 21 structure on the nail leg, with the direct insertion tissue of staple, can realize not having to buckle the nail leg second end and return the tissue and just can anchor the staple on the tissue steadily, can effectively stitch up the tissue fast, reduced the intensity requirement to the staple itself, also reduced the intensity requirement to the drive shaft in the surgical stapler, the structural design requirement to the nail hole in the surgical stapler to greatly reduced the cost.
Therefore, the present embodiment further provides a suturing method of the above-mentioned suturing nail, including the following steps: the suture nail is inserted into the tissue to be sutured, the second ends of the nail legs penetrate through the tissue to be sutured or are buried in the tissue to be sutured, and the second ends of the nail legs are not bent.
Preferably, a plurality of inverted teeth 21 are provided on a first side of the first leg 2, the inverted teeth 21 being sequentially arranged in the leg extending direction, and a plurality of inverted teeth 21 are provided on a second side of the first leg 2 opposite to the first side, the inverted teeth being sequentially arranged in the leg extending direction; a plurality of inverted teeth 21 are provided on a first side of the second leg 3, which are sequentially arranged in the leg extending direction, and a plurality of inverted teeth 21 are provided on a second side of the first leg 2 opposite to the first side, which are sequentially arranged in the leg extending direction. In this way, the suture stability of the suture nail is improved. Further, in the present embodiment, the first side of the first leg 2 is provided with 3 inverted teeth 21, the second side of the first leg 2 is provided with 3 inverted teeth 21, the first side of the second leg 3 is provided with 3 inverted teeth 21, and the second side of the second leg 3 is provided with 3 inverted teeth 21.
Further preferably, the first side of the first leg 2 is the side away from the second leg 3, and the second side of the first leg 2 is the side closer to the second leg 3; the first side of the second leg 3 is the side remote from the first leg 2 and the second side of the second leg 3 is the side near the first leg 2. Thus, the suture nail is convenient to install into the surgical suture instrument.
Further preferably, all the inverted teeth 21 on the first leg 2 are arranged in order along the extending direction of the first leg 2, and all the inverted teeth 21 on the second leg 3 are arranged in order along the extending direction of the second leg 3. Thus, the stitching stability of the stitching nail is further improved.
Further preferably, all the barbs 21 provided on the first leg 2 are evenly distributed along the extension direction of the first leg 2, and all the barbs 21 provided on the second leg 3 are evenly distributed along the extension direction of the second leg 3.
Preferably, both the first leg 2 and the second leg 3 are arranged perpendicular to the support column 1. Because the suturing nail provided by the embodiment can be directly inserted into tissues, suturing can be completed without bending, and a bending pretilt angle (an obtuse angle formed by clamping the nail legs and the support column 1 in the existing suturing nail) is not required, the first nail leg 2 and the second nail leg 3 are directly designed to be perpendicular to the support column 1, the suturing nail can be conveniently and vertically inserted into the tissues, and the requirement for applying force to a surgical suturing device is reduced.
Further, the second end of the first leg 2 has a first piercing slope 22 extending from the second end of the first leg 2 to the end of the support column 1, and the second end of the second leg 3 has a second piercing slope 33 extending from the second end of the second leg 3 to the end of the support column 1. By the arrangement, the area of the end part of the second end of the nail leg penetrating through the tissue to be sutured is reduced, and the second end of the nail leg is beneficial to being inserted into the tissue to be sutured. Further, in the present embodiment, the orientation of the first puncture slope 22 and the orientation of the second puncture slope 33 are disposed back. Of course, the arrangement of the first puncture slope 22 and the second puncture slope 33 facing away from each other is merely preferable, and it is conceivable that the arrangement of the first puncture slope 22 and the second puncture slope 33 facing in the same direction or in opposite directions can achieve similar effects.
Further, in the present embodiment, the first leg 2 and the second leg 3 are axisymmetrically arranged.
Preferably, the inverted tooth 21 is columnar, a first end of the inverted tooth 21 is connected with the nail leg, and a second end of the inverted tooth 21 faces the support column 1 as a tooth tip. The inverted tooth 21 thus provided facilitates the preparation and shaping of the staples. It is further preferred that the angle between the chamfer 21 and the leg is 15-40 °. It is further preferred that the second end of the inverted tooth 21 forms a first active surface 23 parallel to the support column 1. Thus, by providing the first active surface 23, the anchoring effect of the suture in the tissue is further enhanced, and the suture stability is enhanced.
The staples according to the present embodiment can be used to staple tissues by using the staple pushing mechanism described in the background of the application.
Example 2
The main difference between this embodiment and embodiment 1 is that:
as shown in fig. 4, in the suturing nail provided in this embodiment, the first nail leg 2 includes a first suturing portion 24 and a first bending portion 25 which are sequentially connected, the first bending portion 25 is disposed away from the support column 1 relative to the first suturing portion 24, the inverted tooth 21 is disposed on the first suturing portion 24, and a first end of the first bending portion 25 has a first piercing slope 22; the second staple leg 3 comprises a second stitching portion 34 and a second bending portion 35 which are sequentially connected, the second bending portion 35 is arranged far away from the support column 1 relative to the second stitching portion 34, the inverted tooth 21 is arranged on the second stitching portion 34, and a second end of the second bending portion 35 is provided with a second puncture inclined plane 33.
The suturing method of the suturing nail provided by the embodiment comprises the following steps: inserting a suture nail into the tissue to be sutured, and penetrating the bending parts of the nail legs through the tissue to be sutured; the bent portion of the staple leg is bent in a direction parallel to the tissue to be stapled, as shown in fig. 5.
The thus arranged staples can further enhance the stitch stability of the staples in combination with the above-described stitching method. And only need to buckle once just can stabilize the suture tissue to the nail leg, need not to buckle the back to wear the tissue with the nail leg twice, when can effectively suture the tissue fast, reduced the intensity requirement to the staple itself, also reduced the intensity requirement to the drive shaft in the surgical stapler, structural design requirement to the nail hole in the surgical stapler to greatly reduced cost.
Preferably, the second end of the first bending portion 25 is provided with a first concave portion 26, and the orientation of the first concave portion 26 is opposite to the orientation of the first puncture inclined surface 22; the second end of the second bending part 35 is provided with a second concave part 36, and the direction of the second concave part 36 is opposite to the direction of the second puncture inclined plane 33. Therefore, the bending of the bending part of the nail leg is convenient while the strength of the nail leg is not affected.
Further preferably, in this embodiment, the first recess 26 and the second recess 36 have a recess depth of 10% to 20% of the diameter of the staple leg. Thus, the depressions do not destroy the strength of the staple legs and prevent the staple legs from breaking off during forming in the anvil.
Preferably, the included angle between the first nail leg 2 and the support column 1 is 100-120 degrees, and the included angle between the second nail leg 3 and the support column 1 is 100-120 degrees. Therefore, the bending part of the nail leg is convenient to bend along the nail pit modeling by setting the pre-deflection angle.
The rest is the same as in embodiment 1 and will not be described here again.
Example 3
As shown in fig. 6 and 7, the present embodiment provides a staple tape. The stitching nail belt comprises a support column 1 and a plurality of nail legs 4, wherein a first end of each nail leg 4 is connected with the support column 1, and a second end of each nail leg 4 is a free end; the plurality of nail legs 4 are arranged in sequence along the extending direction of the support column 1, and the plurality of nail legs 4 are arranged in the same plane, and each nail leg 4 is provided with a pawl 21 with a tooth tip facing the support column 1. During suturing, the second end of each leg 4 is oriented towards the tissue to be sutured, the staple strip is moved towards the tissue to be sutured, and the second end of each leg 4 is insertable into the tissue to be sutured.
Since the stitching belt has the inverted tooth 21 structure, the embodiment also provides a stitching method of the stitching belt, which comprises the following steps: the staple legs 4 are sequentially inserted into the tissue to be stapled from the first end of the staple belt to the second end of the staple belt, the second ends of the staple legs 4 penetrate through the tissue to be stapled or are buried in the tissue to be stapled, and the second ends of the staple legs 4 are not bent.
As shown in fig. 8, the present embodiment also provides a surgical stapler for the staple tape of the present embodiment. The surgical stapler comprises a staple cartridge assembly and a staple anvil 7, wherein the staple cartridge assembly comprises a staple cartridge 5 and a staple pushing slide block 6 accommodated in the staple cartridge 5, the top end of the staple cartridge 5 is provided with a staple groove 51 extending into the staple cartridge 5 and extending along the far and near directions, the staple pushing slide block 6 is provided with a staple pushing sheet 61, and the staple pushing sheet 61 is inserted into the staple groove 51 upwards; wherein the anvil 7 is positioned above the cartridge assembly, and the second active surface 71 of the anvil 7 facing the cartridge assembly is provided with a pit 72 for receiving the second end of each leg 4 at a position corresponding to the slot 51; the stitching nail belt is clamped in the nail groove 51, and the second end of each nail leg 4 faces the nail pit 72; the nail pushing slider 6 drives the nail pushing sheet 61 to move along the nail groove 51 in the far and near directions, the pushing inclined surface 62 on the nail pushing sheet 61 is contacted with the bottom of the strip-shaped supporting belt, and the nail legs 4 are pushed one by one to move upwards along the pushing inclined surface 62 to be inserted into the nail pits 72. Thus, the surgical stapler can be used for installing the stitching belt, can also be used for driving the stitching belt to stitch tissues, and has good stitching effect.
Surgical staplers use the staple tape provided as described above for stapling tissue, with the following benefits compared to surgical staplers which use staples for stapling tissue: 1. because there are far more legs 4 than there are legs 4 on one staple strip, the number of staple strips required is far less than the number of staples required to achieve the same stapling effect, thereby making the stapling process of the surgical stapler simple, difficult to miss, and also difficult to miss when different types of staples are to be accommodated within the staple cartridge 5 of the surgical stapler being used. 2. Because there are far more legs 4 than there are legs 4 on one staple, it is difficult for the surgical stapler to have a completely empty closing of the staple (i.e., the legs 4 on the staple are all closed but none of them is stapled) during the use of the staple with the surgical stapler, thereby avoiding the risk of the staples being scattered in the body during surgery and improving the efficiency of the surgery.
Preferably, in the staple belt, the plane of the plurality of legs 4 is perpendicular to the plane of the support column 1. In this way, the installation of the staple strips in the surgical stapler is facilitated, facilitating the insertion of the staple legs 4 into the tissue to be stapled.
Preferably, in the staple tape, adjacent staple legs 4 are parallel to each other, and the spacing between adjacent staple legs 4 is equal. This enhances the suturing effect of the strip of staples on the tissue.
Preferably, the second end of each staple leg 4 has a piercing ramp 42 extending from the second end of the staple leg 4 to the end of the support column 1, as shown in FIGS. 6 and 7. By the arrangement, the area of the second end part of the nail leg 4 penetrating through the tissue to be sutured is reduced, and the second end of the nail leg 4 is beneficial to being inserted into the tissue to be sutured.
Further preferably, in the staple band, the piercing ramps 42 of each staple leg 4 are all oriented in the same direction. Of course, it is merely preferred that the piercing ramps 42 of each staple leg 4 in a staple strip face in the same direction; it is contemplated that similar effects can be achieved with the piercing ramps 42 of adjacent staple legs 4 in the staple strip facing in opposite directions.
Further preferably, in the staple band, the angle between each staple leg 4 and the support column 1 is 60-80 °. Thus, by providing a pre-deflection angle for each of the staple legs 4, after the push inclined surface 62 on the staple pushing plate 61 scoops up the staple strip during the stapling process, the staple legs 4 on the scooped staple strip can be swung to an angle approximately perpendicular to the tissue to be stapled, as shown in fig. 9, so that the staple legs 4 can be vertically inserted into the tissue to be stapled by moving upward along the push inclined surface 62, the efficiency of inserting the tissue is high, and the stapling effect is good.
Preferably, a plurality of the inverted teeth 21 are provided on a first side of each of the legs 4, which are sequentially arranged in the extending direction of the legs 4, and a plurality of the inverted teeth 21 are provided on a second side of each of the legs 4, which is opposite to the first side, which are sequentially arranged in the extending direction of the legs 4. In this way, the suture stability of the suture nail is improved. Further, in the present embodiment, the first side of each of the legs 4 is provided with 3 inverted teeth 21, and the second side of each of the legs 4 is provided with 3 inverted teeth 21.
Further preferably, the first side of each leg 4 is the side near the first end of the support column 1 and the second side of each leg 4 is the side near the second end of the support column 1. Thus, the suture nail is convenient to install into the surgical suture instrument.
Further preferably, all the barbs 21 on each leg 4 are arranged in sequence along the extension direction of the leg 4. Thus, the stitching stability of the stitching nail is further improved. It is further preferred that all the teeth 21 provided on one leg 4 are evenly distributed along the extension direction of that leg 4.
Preferably, the inverted tooth 21 is columnar, a first end of the inverted tooth 21 is connected with the shank 4, and a second end of the inverted tooth 21 faces the support column 1 as a tooth tip. The inverted tooth 21 thus provided facilitates the preparation and shaping of the staples. It is further preferred that the angle between the chamfer 21 and the leg 4 is 15-40 °. It is further preferred that the second end of the inverted tooth 21 forms a first active surface parallel to the support column 1. Therefore, by arranging the first acting surface, the anchoring effect of the suturing nail in the tissue is further improved, and the suturing stability is enhanced.
Preferably, as shown in fig. 7, in the stitching tape, the support column 1 has a top portion connected to the staple leg 4, the bottom portion of the support column 1 is a plane, two side portions of the support column 1 along the extending direction thereof are arc-shaped convex surfaces 11, and the top portion of the support column 1 is connected to the bottom portion of the support column 1 through the arc-shaped convex surfaces 11. Thus, the two side parts of the support column 1 along the extending direction are arc convex surfaces, so that the installation of the stitching nail belt in the surgical stitching instrument is facilitated, and the bottom of the support column 1 is arranged to be a plane, thereby facilitating the action between the stitching nail pushing sheet 61 and the stitching nail belt.
It should be noted that, when the staple belt provided in this embodiment is used, the staple belt may be cut according to the length of the tissue to be sutured, installed in the surgical stapler, and inserted into the tissue by controlling the suturing stroke of the surgical stapler. Namely, the length of the stitching nail belt and the surgical stitching instrument provided by the embodiment can be adjusted according to the actual use requirement, and the stitching nail belt is flexible to use.
Preferably, as shown in fig. 8, in the surgical stapler, an even number of staple grooves 51 are formed at the top end of the staple cartridge 5, the even number of staple grooves 51 are sequentially arranged in the left-right direction, a first feed groove 52 extending in the far-near direction is further formed at the top end of the staple cartridge 5, and the even number of staple grooves 51 are symmetrically distributed about the first feed groove 52; correspondingly, a second feed groove 73 extending in the far and near direction is provided on the active surface of the anvil 7 at a position corresponding to the first feed groove 52, and the staple pits 72 are symmetrically distributed about the second feed groove 73. In this way, the simultaneous suturing of the cuts is facilitated and more efficient. Further, in the present embodiment, a plurality of staple grooves 51 are formed in the top end of the staple cartridge 5, and the first feed groove 52 is formed in the middle of the top end of the staple cartridge 5 in the left-right direction.
Example 4
The main difference between this embodiment and embodiment 3 is that:
as shown in fig. 10, in the fastener tape provided in this embodiment, each of the staple legs 4 includes a stitching portion 43 and a bending portion 44 which are connected to each other, the bending portion 44 is disposed away from the support column 1 with respect to the stitching portion 43, the inverted tooth 21 is disposed on the stitching portion 43, and a first end of the bending portion 44 has a piercing slope 42.
The suturing method of the suturing nail provided by the embodiment comprises the following steps: sequentially inserting the staple legs 4 into the tissue to be stapled from the first end of the staple belt to the second end of the staple belt, and penetrating the bent portions 44 of the staple legs 4 through the tissue to be stapled; the bent portion 44 of the staple leg 4 is bent in a direction parallel to the tissue to be stapled, as shown in fig. 11.
The thus arranged fastener tape can further enhance the stitching stability of the fastener tape in combination with the above stitching method. And only need to buckle once just can stabilize the suture tissue to nail leg 4, need not to buckle back the tissue after nail leg 4 twice, can effectively suture the tissue fast the time, reduced the intensity requirement to the staple itself, also reduced the intensity requirement to the drive shaft in the surgical stapler, the structural design requirement to nail hole 72 in the surgical stapler to greatly reduced the cost.
Preferably, the second end of the bending portion 44 is provided with a recess 45, and the direction of the recess 45 is opposite to the direction of the puncture inclined surface 42. In this way, the bending of the bending portion 44 of the leg 4 is facilitated without affecting the strength of the leg 4. Further preferably, in the present embodiment, the depression depth of the depression 45 is 10% to 20% of the diameter of the staple leg 4. In this way, the depressions 45 do not destroy the strength of the legs 4, preventing the legs 4 from breaking off when formed in the anvil 7.
In the staple tape, when the bias of each leg 4 (i.e., the bias of each leg 4 toward the support column 1) is the same and the piercing slopes 42 of each leg 4 are oriented in the same direction, the piercing slope 42 of one leg 4 may be oriented in the same direction as the bias of the leg 4 or in the opposite direction to the bias of the leg 4. In this embodiment, as shown in fig. 10, the piercing slope 42 of the staple leg 4 is oriented in the same direction as the bias of the staple leg 4.
Further, as shown in fig. 8, each of the staple pockets 72 on the anvil 7 has therein an arc-shaped surface for guiding the staple legs 4 to bend in the distal-proximal direction; in the suturing process, the staple legs 4 are inserted into the staple pits 72 and bent along the far and near directions along the arc surfaces, so that the staple legs 4 can suture tissues. Preferably, all the pockets 72 on the active surface of the anvil 7 corresponding to the position of one of the pockets 51 form a row of pockets 72, the second arcuate surfaces of all the pockets 72 in each row of pockets 72 facing in the same direction. Therefore, all the staple legs 4 on each staple belt are folded and closed in the same direction, the driving stitching mode of the matched staple belts is facilitated, the load of the staple pushing slide block 6 is reduced, and the stitching effect is improved.
The rest is the same as in embodiment 1 and will not be described here again.
Example 5
The main difference between this embodiment and embodiments 3 and 4 is that:
as shown in fig. 12, the present embodiment provides a staple tape further comprising a layer 8 of bioabsorbable elastomeric material, the layer 8 of bioabsorbable elastomeric material being adhered to the top of the support column 1, each leg 4 passing through the layer 8 of bioabsorbable elastomeric material. In this way, by bonding the bioabsorbable elastomer layer 8 on top of the support column 1, compensation is achieved during the suturing process, reducing tissue damage; for example, when a nail belt is used for suturing tissues with uneven thickness, in order to be able to stably suture the tissue thin part, the surgical stapler can excessively squeeze the tissue thick part to cause tissue necrosis of the tissue thick part, and the gap between the tissue and the surgical stapler is compensated by arranging the bioabsorbable elastic material layer 8, so that the tissue thin part can be stably sutured, and the tissue thick part can not be excessively squeezed.
The rest is the same as in embodiment 1 and will not be described here again.
It should be understood that the above description of the specific embodiments of the present application is only for illustrating the technical route and features of the present application, and is for enabling those skilled in the art to understand the present application and implement it accordingly, but the present application is not limited to the above-described specific embodiments. All changes or modifications that come within the scope of the appended claims are intended to be embraced therein.
Claims (8)
1. A stitching nail is characterized in that,
the novel nail comprises a support column (1) and at least two nail legs (4) positioned on one side of the support column (1), wherein the first ends of the nail legs (4) are connected with the support column (1), the second ends of the nail legs (4) are free ends, and inverted teeth (21) with tooth points facing the support column (1) are arranged on the nail legs (4);
during suturing, the second ends of the staple legs (4) face the tissue to be sutured to be movably inserted into the tissue to be sutured;
the stitching nails are stitching nail belts, the stitching nail belts are provided with a plurality of stitching nail legs (4), the first end of each stitching nail leg (4) is connected with a supporting column (1), the second end of each stitching nail leg (4) is a free end, the stitching nail legs (4) are sequentially arranged along the extending direction of the supporting column (1), the stitching nail legs (4) are arranged in the same plane, and each stitching nail leg (4) is provided with a pawl (21) with tooth tips facing the supporting column (1);
in the stitching nail belt, adjacent nail legs (4) are arranged in parallel, and an included angle between each nail leg (4) and the supporting column (1) is 60-80 degrees.
2. The staple of claim 1 wherein the staple is selected from the group consisting of,
a plurality of inverted teeth (21) which are sequentially arranged along the extending direction of the nail legs (4) are arranged on the first side of the nail legs (4), and a plurality of inverted teeth (21) which are sequentially arranged along the extending direction of the nail legs (4) are arranged on the second side, opposite to the first side, of the nail legs (4);
the first side of the nail leg (4) is the side close to the first end of the support column (1), and the second side of the nail leg (4) is the side close to the second end of the support column (1).
3. The staple of claim 2 wherein the staple is selected from the group consisting of,
all the inverted teeth (21) on the nail legs (4) are sequentially arranged along the extending direction of the nail legs (4); all the inverted teeth (21) on the nail leg (4) are uniformly distributed along the extending direction of the nail leg (4).
4. The staple of claim 1 wherein the staple is selected from the group consisting of,
the inverted tooth (21) is columnar, and the included angle between the inverted tooth (21) and the nail leg (4) is 15-40 degrees; the tooth tip forms a first active surface parallel to the support column (1).
5. The staple of claim 1 wherein the staple is selected from the group consisting of,
the staple leg (4) comprises a stitching part (43) and a bending part (44) which are connected with each other, the bending part (44) is arranged far away from the support column (1) relative to the stitching part (43), the inverted tooth (21) is arranged on the stitching part (43), and the first end of the bending part (44) forms the free end.
6. The staple of claim 5 wherein the staple is selected from the group consisting of,
the free end is provided with a puncture inclined plane (42), and the second end of the bending part (44) is provided with a concave part (45).
7. The staple of claim 1 wherein the staple is selected from the group consisting of,
in the stitching nail belt, adjacent nail legs (4) are arranged in parallel, the second end of each nail leg (4) is provided with a puncture inclined plane (42) extending from the second end of the nail leg (4) to the end of the supporting column (1), and the puncture inclined planes (42) of each nail leg (4) face the same direction.
8. Surgical stapler, characterized in that it comprises a staple according to any one of claims 1 to 7, a cartridge assembly and a staple anvil (7);
the nail bin assembly comprises a nail bin (5) and a nail pushing sliding block (6) accommodated in the nail bin (5), a nail groove (51) extending into the inside of the nail bin (5) and extending in the far and near directions is formed in the top end of the nail bin (5), a nail pushing sheet (61) is arranged on the nail pushing sliding block (6), and the nail pushing sheet (61) is inserted into the nail groove (51) upwards; the nail anvil block (7) is positioned above the nail bin (5), and a nail pit (72) for accommodating the second end of each nail leg (4) is formed in the surface of the nail anvil block (7) facing the nail bin (5) at a position corresponding to the nail groove (51);
the stitching nails are clamped in the nail grooves (51), and the second end of each nail leg (4) faces to the nail pit (72);
the nail pushing slide block (6) drives the nail pushing sheet (61) to move along the nail groove (51) in the far and near directions, and a pushing inclined surface (62) contacted with the bottom of the support column (1) is arranged on the nail pushing sheet (61) so as to guide the nail legs (4) to be inserted into the nail pits (72) along the pushing inclined surface (62) one by one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111653658.9A CN114403961B (en) | 2021-12-30 | 2021-12-30 | Suturing nail and surgical suturing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111653658.9A CN114403961B (en) | 2021-12-30 | 2021-12-30 | Suturing nail and surgical suturing device |
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| CN114403961A CN114403961A (en) | 2022-04-29 |
| CN114403961B true CN114403961B (en) | 2023-12-15 |
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| US4635637A (en) * | 1984-03-29 | 1987-01-13 | Schreiber Saul N | Surgical suture |
| CN101438974A (en) * | 2007-11-23 | 2009-05-27 | 苏州天臣国际医疗科技有限公司 | Stitching head of surgery incising and stitching instrument |
| CN104758018A (en) * | 2015-03-25 | 2015-07-08 | 天津万和医疗器械有限公司 | Suturing nail |
| CN105025812A (en) * | 2013-02-28 | 2015-11-04 | 伊西康内外科公司 | Staple forming features for surgical stapling instrument |
| CN210931597U (en) * | 2019-09-30 | 2020-07-07 | 北京博辉瑞进生物科技有限公司 | Anastomosis nail and anastomat |
| CN211749812U (en) * | 2019-12-30 | 2020-10-27 | 天津瑞奇外科器械股份有限公司 | Driving device and loading unit for suturing nail and surgical suturing instrument |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4635637A (en) * | 1984-03-29 | 1987-01-13 | Schreiber Saul N | Surgical suture |
| CN101438974A (en) * | 2007-11-23 | 2009-05-27 | 苏州天臣国际医疗科技有限公司 | Stitching head of surgery incising and stitching instrument |
| CN105025812A (en) * | 2013-02-28 | 2015-11-04 | 伊西康内外科公司 | Staple forming features for surgical stapling instrument |
| CN104758018A (en) * | 2015-03-25 | 2015-07-08 | 天津万和医疗器械有限公司 | Suturing nail |
| CN210931597U (en) * | 2019-09-30 | 2020-07-07 | 北京博辉瑞进生物科技有限公司 | Anastomosis nail and anastomat |
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| Publication number | Publication date |
|---|---|
| CN114403961A (en) | 2022-04-29 |
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