CN212996590U - Auxiliary sheet fixing structure and circular tube type anastomat - Google Patents
Auxiliary sheet fixing structure and circular tube type anastomatDownload PDFInfo
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- CN212996590U CN212996590UCN202021053148.9UCN202021053148UCN212996590UCN 212996590 UCN212996590 UCN 212996590UCN 202021053148 UCN202021053148 UCN 202021053148UCN 212996590 UCN212996590 UCN 212996590U
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Abstract
Translated fromChinese
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to assist piece fixed knot to construct and circular tube type anastomat.
Background
In the prior art, a circular tube-type anastomat comprises an anastomat body, an operating handle movably connected with the anastomat body and a nail anvil assembly matched with the anastomat body. The anastomat body comprises a firing assembly and a nail bin assembly arranged on the far end side, and the nail bin assembly comprises a nail barrel. In the operation process, firstly, the nail bin assembly is operated to enter the tissue, after the tissue reaches the operation position, the nail bin assembly is in butt joint with the nail anvil assembly, so that two sections of tissues to be anastomosed are placed between the nail anvil of the nail anvil assembly and the nail bin of the nail bin assembly, the distance between the nail anvil and the nail bin is adjusted to gradually clamp the tissues, then the trigger assembly is driven by the operation handle to enable the anastomotic nails to be formed on the nail anvil, and the anastomotic connection of the two sections of tissues is completed.
In the use process of the anastomat, auxiliary sheets with various functions are sometimes required to be arranged on the far end side of the cartridge component, for example, the auxiliary sheet for guiding the cartridge component to move in the tissue can be arranged on the far end side of the cartridge component, the auxiliary sheet coated with anti-inflammatory drugs can be arranged on the far end side of the cartridge component, the auxiliary sheet for reinforcing the anastomotic orifice can be arranged on the far end side of the cartridge component, and the like. However, the fixation of the existing prosthetic and cartridge is often complicated and difficult to maintain in position during the surgical procedure.
The utility model discloses in, distal end side and near-end side are for the operator, and the one end that is nearer apart from the operator is near-end side, and the one end far away apart from the operator, the one end that is more close to the operation position promptly is the distal end side. In the stapler, the inner side and the outer side are relative to the axis of the stapler, wherein the side close to the axis is the inner side, and the side far away from the axis is the outer side.
SUMMERY OF THE UTILITY MODEL
To the problem among the prior art, the utility model aims to provide an assist piece fixed knot to construct and round tube type anastomat can fix the piece of assisting in operation the place ahead conveniently through assisting piece fixed knot to the mounting setting can not influence a nail section of thick bamboo external diameter, simple to operate, simple to use in a nail section of thick bamboo inboard.
The embodiment of the utility model provides an assist piece fixed knot to construct sets up in the nail storehouse subassembly of circular tube type anastomat, the nail storehouse subassembly includes a nail section of thick bamboo, assist piece fixed knot to construct and include:
the auxiliary sheet is arranged on the distal end side of the nail barrel;
the fixing piece extends along the axial direction of the nail barrel, the far end side of the fixing piece is fixedly connected with the auxiliary sheet, and the fixing piece is detachably fixed on the inner side surface of the nail barrel.
Optionally, the auxiliary plate includes an auxiliary plate main body at least partially covering the distal end surface of the cartridge, and a connecting portion connected between the auxiliary plate main body and the distal end side of the fixing member.
Optionally, the auxiliary sheet main body is ring-shaped with a central opening, and the distal end side of the connecting portion is connected to the opening of the auxiliary sheet main body.
Optionally, the auxiliary piece main body and the connecting portion are integrally formed.
Optionally, the fixing member is a tubular fixing member, and the connecting portion is attached to a side surface of the fixing member.
Optionally, the connecting portion and the fixing member are fixedly connected by medical glue or medical suture.
Optionally, the fixing member is an annular fixing member, a distal end of the fixing member is provided with a hole along the circumferential direction, and the connecting portion is at least partially disposed in the hole, so that the connecting portion is clamped between the inner side wall of the nail barrel and the fixing member.
Optionally, the connecting portion includes a plurality of connecting pieces, a distal-end-side length of which is greater than a proximal-end-side length of which in a circumferential direction of the opening of the sub-piece main body.
Optionally, the connecting piece is an inverted triangular connecting piece, and the connecting piece forms an annular zigzag structure.
Optionally, at least a part of the connecting portion is an elastic portion, and when the connecting portion is sleeved outside the fixing member, the elastic portion of the connecting portion is in an elastic expansion state.
Optionally, the fixing piece is in interference fit with the inner side surface of the nail barrel.
Optionally, the fixing member is a telescopic net structure, the fixing member includes a first state and a second state, and when the fixing member enters the second state from the first state, the outer diameter of the fixing member increases, and the length of the fixing member decreases.
Optionally, the outer side of the auxiliary sheet is at least partially coated with a lubricating layer.
Optionally, the auxiliary sheet is made of degradable material.
Optionally, the thickness of the auxiliary sheet is less than 0.2 mm.
The embodiment of the utility model provides a still provide a circular tube type anastomat, include supplementary piece fixed knot structure.
The utility model provides an it has following advantage to assist piece fixed knot structure and circular tube type anastomat:
the utility model provides an auxiliary sheet fixed knot constructs for tubular anastomat can fix auxiliary sheet in a nail section of thick bamboo in operation the place ahead conveniently through auxiliary sheet fixed knot constructs to can keep auxiliary sheet's positional stability well before nail storehouse subassembly reachs the operation position, avoid the unexpected break away from of auxiliary sheet, in addition, because the mounting sets up in a nail section of thick bamboo inboard, can not influence a nail section of thick bamboo external diameter, simple to operate, simple to use.
Drawings
Other features, objects and advantages of the invention will become more apparent from a reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a staple cartridge assembly;
fig. 2 is a perspective view of an auxiliary sheet fixing structure according to an embodiment of the present invention;
fig. 3 is a perspective view of an auxiliary sheet fixing structure according to an embodiment of the present invention from another angle;
fig. 4 is an exploded view of an auxiliary fixing structure according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an auxiliary sheet according to an embodiment of the present invention;
FIG. 6 is a perspective view of an embodiment of the present invention applied to a nail cartridge;
FIG. 7 is a front view of an embodiment of the present invention applied to a nail cartridge;
FIG. 8 is a schematic structural view of an auxiliary sheet according to another embodiment of the present invention;
fig. 9 is a schematic structural view of a fixing member according to still another embodiment of the present invention in a first state;
fig. 10 is a schematic structural view of a fixing member in a second state according to still another embodiment of the present invention.
Reference numerals:
1auxiliary sheet 3 nail cartridge
11 distal side of the cartridge of theslave body 31
Proximal side of 12 joint 32 cartridge
121 connectingpiece 33 nail bin surface
2 inner side of thefixing member 34
21distal side 35 lateral surface of anchor
22 proximal side of the anchor
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.
The utility model provides an auxiliary sheet fixing structure for a circular tube type anastomat and a circular tube type anastomat comprising the auxiliary sheet fixing structure. The circular tube anastomat comprises an anastomat body, an operating handle movably connected with the anastomat body and a nail anvil assembly matched with the anastomat body. The anastomat body comprises a firing assembly and a nail bin assembly arranged on the far end side. The staple cartridge assembly includes a staple cartridge. The auxiliary sheet fixing structure comprises an auxiliary sheet and a fixing piece. The auxiliary sheet is arranged on the distal end side of the nail barrel. The fixing piece extends along the axial direction of the nail barrel, the far end side of the fixing piece is fixedly connected with the auxiliary sheet, and the fixing piece is detachably fixed on the inner side surface of the nail barrel. Therefore, before the operation, can conveniently fix the auxiliary sheet in the distal end side of nail section of thick bamboo through auxiliary sheet fixed knot constructs to can keep the positional stability of auxiliary sheet well before nail storehouse subassembly reachs the operation position, avoid the unexpected break away from of auxiliary sheet, in addition, because the mounting sets up in nail section of thick bamboo inboard, can not influence nail section of thick bamboo external diameter, simple to operate, simple to use. The auxiliary sheet may be, for example, an auxiliary sheet having a guiding function, an anastomotic reinforcement function, or an anti-inflammatory function.
The structure of the auxiliary sheet fixing structure according to each embodiment of the present invention will be described in detail with reference to the accompanying drawings, and it should be understood that each embodiment is not intended to limit the scope of the present invention.
FIG. 1 is a schematic view of a staple cartridge assembly. The nail box assembly comprises anail box 3 and an anvil pull rod at least partially positioned in thenail box 3, wherein the end surface of thefar end side 31 of thenail box 3 is anail box surface 33. During operation, the nail bin assembly is required to enter the tissue and move forwards to reach a surgical position so as to be butted with the nail anvil assembly.
As shown in fig. 2-5, the auxiliary sheet fixing structure and the structure of the nail cartridge assembly are shown in an embodiment of the present invention. In this embodiment, the sub-sheet fixing structure includes asub-sheet 1 and a fixingmember 2. Thetab 1 is provided on thedistal side 31 of thecartridge 3. The fixingmember 2 extends along the axial direction of thenail barrel 3, thedistal end side 21 of the fixingmember 2 is fixedly connected with theauxiliary sheet 1, and the fixingmember 2 is detachably fixed on theinner side surface 34 of thenail barrel 3.
Before the operation, the surgeon can position the prosthetic 1 on thedistal side 31 of thecartridge 3 by means of the fixingmember 2, and then the prosthetic 1 can be brought into the tissue along with thecartridge 3. Because the fixingpiece 2 is arranged at the inner side of thenail barrel 31, the outer space of thenail barrel 3 can not be occupied, the outer diameter of thenail barrel 3 can not be influenced, and the difficulty of the movement of thenail barrel 3 in the tissue can not be increased due to the increase of the auxiliary sheet fixing structure. And the structure of the fixation of the auxiliary plate is simple, and the position stability of theauxiliary plate 1 on thefar end side 31 of thenail barrel 3 can be well maintained. Theauxiliary sheet 1 may have one or more of a guiding effect, an anti-inflammatory effect or an anastomotic reinforcement effect. After the cartridge assembly reaches the surgical site, thefastener 2 and theflap 1 can be removed together from thecartridge 3 by pulling thefastener 2 proximally. In an alternative embodiment, theprosthetic sheet 1 may be retained on thedistal side 31 of thecartridge 3, and upon firing of the stapler, theprosthetic sheet 1 staples the tissue along with the staples, reinforcing the connection of the staples and tissue at the anastomosis, preventing separation from the staples during tissue growth, and reducing complications of bleeding, infiltration, etc. at the anastomosis.
In this embodiment, the distal side and the proximal side are relative to the operator, the end closer to the operator is the proximal side, the end farther from the operator, i.e. the end closer to the surgical site, is the distal side, and the direction along the axial center of the stapler is the axial direction, i.e. the direction from the distal side to the proximal side of the stapler, or the direction from the proximal side to the distal side of the stapler. For example, in the perspective of FIG. 1, thedistal side 31 is the upper side and theproximal side 32 is the lower side of thecartridge 3. In the perspective of fig. 3, thedistal side 21 of theanchor 2 is the upper side and theproximal side 22 is the lower side. In the present invention, for one component, the inside and the outside are relative to the axis of thenail barrel 3, the side close to the axis is the inside, and the side far away from the axis is the outside. Thecartridge 3 has anouter surface 35 which is a surface of thecartridge 3 which is directly contacted with the tissue after entering the tissue, and aninner surface 34 which is a surface facing the axis of thecartridge 3.
As shown in FIGS. 2 to 4, theauxiliary plate 1 comprises an auxiliary platemain body 11 and a connectingpart 12, wherein the auxiliary platemain body 11 at least partially covers the end surface of thedistal end side 31 of thenail barrel 3, namely the auxiliary plate at least partially covers thenail box surface 33 of thenail barrel 3. Thesub-plate body 11 has a ring shape with a central opening provided corresponding to the central opening of thecartridge 3. Theauxiliary plate 1 may be a ring-shaped structure that completely covers thecartridge face 33 of thecartridge 3. The distal end side of the connectingportion 12 is connected to the auxiliary sheetmain body 11 at the opening of the auxiliary sheetmain body 11, and the connectingportion 12 is fixedly connected to thedistal end side 21 of the fixingmember 2.
As shown in fig. 4 and 5, in this embodiment, the sub-sheetmain body 11 and the connectingportion 12 are integrally formed. In other alternative embodiments, theflap body 11 and the connectingportion 12 may be two separate parts, and the distal end side of the connectingportion 12 and the opening position of theflap body 11 are connected by means of adhesive, a connecting member, or the like.
In this embodiment, when theprosthetic sheet 1 is used for reinforcement of an anastomotic stoma, theprosthetic sheet 1 is preferably made of a material that is non-immunogenic and is degradable in vivo, such as a degradable polymer material or a degradable biomaterial. For example, theprosthetic 1 may be made of a material having a three-dimensional network of porous structure that provides a scaffold for tissue and promotes tissue regeneration. The degradable biological material may comprise biological tissue treated for immunogen removal, for example, a decellularized small intestine submucosa matrix material may be employed. Thus, theauxiliary sheet 1 can achieve anastomotic stoma reinforcement and facilitate tissue regeneration. Thesub-sheet 1 becomes soft and easily deformed when it encounters water. Therefore, before thenail barrel 3 enters the tissue, the surface of theauxiliary sheet 1 is dipped with water, or after theauxiliary sheet 1 enters the tissue along with thenail barrel 3, theauxiliary sheet 1 is softened when meeting body fluid, the part of theauxiliary sheet 1 close to the central opening covers thenail bin surface 33, and the part of theauxiliary sheet 1 far away from the central opening is attached to the outer side surface of thefar end side 31 of thenail barrel 3, so that the structure shown in fig. 7 is formed.
When theauxiliary sheet 1 is used as a guide or a structural member such as an anti-inflammatory member, other types of materials can be selected for theauxiliary sheet 1, for example, theauxiliary sheet 1 can be made of a flexible film made of rubber, plastic, silicone or the like, or can be made of a flexible fabric such as a woven fabric, a knitted fabric or the like, and the material used for the fabric can be a rayon material or a spun yarn obtained by a polymer extrusion method or the like. Theauxiliary sheet 1 may have a certain elasticity or may be a flexible material without elasticity. Furthermore, theauxiliary sheet 1 can also be made of TPE (Thermoplastic Elastomer).
The thickness of thesub-sheet 1 is preferably less than 0.2mm, and further may be 0.15 mm. For example, the thickness of theflap 1 can be selected in the range of 0.05mm to 0.2mm so as to have substantially no effect on the outer diameter of thecartridge 3, increase the difficulty of movement of thecartridge 3 in the tissue due to the addition of theflap 1, and reduce damage to the tissue mucosa. In practical applications, the thickness of theauxiliary sheet 1 may be selected as desired, and is not limited to the ranges and values listed herein.
In this embodiment, the outer side of theauxiliary sheet 1 may be at least partially lubricious or coated with a lubricious layer. Here, the outer side surface of the sub-sheet 1 means a surface on a side which is directly contacted with the tissue after thecartridge 3 enters the tissue. Therefore, when thenail barrel 3 enters and moves in the tissue, the surface of theauxiliary sheet 1 is provided with lubricating property or a lubricating layer, the movement of thenail barrel 3 can be guided, and the friction force of thenail barrel 3 contacting with the tissue is reduced, thereby reducing the friction and damage to the tissue. The lubricating layer can be formed by coating with an aqueous lubricant or an oil lubricant which is known in the art. For example, hydrophilic coating of the outer side of thetablet 1, the outer surface of thetablet 1 becoming very lubricious when dipped in water before use, has been widely used in the surgical field. When thetablet 1 is used as an anti-inflammatory member, an anti-inflammatory drug may be applied to the outer surface of thetablet 1.
In this embodiment, as shown in fig. 4 and 6, the fixingmember 2 is a tubular fixingmember 2, and the fixingmember 2 is in interference fit with theinner side surface 34 of thecartridge 3. When the fixation structure of the auxiliary plate needs to be installed in the nail box assembly before operation, thefixation member 2 only needs to be inserted into thenail barrel 3 from thedistal end side 31 of thenail barrel 3, and the inner side surface of theauxiliary plate 1 is inserted to be basically attached to thenail box surface 33. After the cartridge assembly reaches the surgical site, thefixation member 2 and theaccessory plate 1 can be removed from thecartridge 3 by pulling thefixation member 2 proximally, so as not to interfere with the normal firing of the stapler. Furthermore, in another embodiment, after the cartridge assembly reaches the surgical site, thefastener 2 and theflap 1 may not be removed, i.e., theflap 1 serves as a staple reinforcement to staple the tissue together with the staples. In this case, after the stapler firing is complete and the cartridge module is removed from the tissue, thefasteners 2 can also be removed directly from thedistal side 31 of thecartridge 3. Therefore, the auxiliary sheet fixing structure is very convenient to mount and dismount, extra work cannot be added for an operator, and user experience is improved. The fixingmember 2 may be made of rubber, plastic, plastics, silicone, and the like, and preferably made of a material having a certain flexibility, so as to facilitate the installation of the fixingmember 2 on thenail barrel 3. For example, the fixingmember 2 may be made of TPE (Thermoplastic Elastomer), but the present invention is not limited thereto.
As shown in fig. 2 to 5, the connectingportion 12 is attached to theinner side surface 34 of the fixingmember 2. Theconnection portion 12 and theinner side 34 of the fixingmember 2 may be connected by means of an adhesive or a connecting member, for example. For example, the connectingportion 12 and the fixingmember 2 may be fixedly connected by medical glue, for example, biological glue. In another alternative embodiment, the connectingportion 12 may also be fixedly connected to the fixingmember 2 by a medical suture. In another alternative embodiment, the connectingportion 12 may also be attached to theouter side 34 of the fixingelement 2. In this embodiment, the connectingportion 12 includes a plurality of connectingpieces 121, and the connectingpieces 121 have a distal-end-side length greater than a proximal-end-side length of the connectingpieces 121 in the circumferential direction of the opening of the sub-sheetmain body 11. Further, as shown in fig. 5, the connectingpiece 121 is an inverted triangularconnecting piece 121, and the connectingportion 12 forms an annular zigzag structure. Only one structure of the connectingportion 12 is shown here, and in other alternative embodiments, the connectingportion 12 may also adopt other forms of structures, such as an annular structure integrally formed with the connectingportion 12, or one or more discontinuous connecting pieces, etc., all falling within the scope of the present invention.
In another alternative embodiment, the structure of the connectingportion 12 and the connection manner with the fixingmember 2 are not limited to the form shown in fig. 2 to 5. The fixingmember 2 may be a ring-shaped fixing member, a hole is formed at a distal end of the fixingmember 2 along a circumferential direction, and the connectingportion 12 is at least partially disposed in the hole of the fixingmember 2, so that the connectingportion 12 is clamped between an inner side wall of thenail barrel 3 and the fixingmember 2.
Fig. 8 is a schematic structural diagram of an auxiliary sheet according to another embodiment of the present invention. In this embodiment, the connectingportion 12 may also be annular, and at least a portion of the connectingportion 12 is an elastic portion, and when the connectingportion 12 is sleeved outside the fixingmember 2, the elastic portion of the connectingportion 12 is in an elastic expansion state. Namely, the connection of the connectingportion 12 and the fixingmember 2 is achieved by the connectingportion 12 being tightened on the outside of the fixingmember 2.
As shown in fig. 9 and 10, the structure of a fixingmember 2 according to still another embodiment of the present invention is shown. In this embodiment, the fixingmember 2 is a telescopic net structure, and the fixingmember 2 includes a first state (as shown in fig. 9) and a second state (as shown in fig. 10), when the fixingmember 2 enters the second state from the first state, the outer diameter of the fixingmember 2 is increased, and the length of the fixingmember 2 is decreased. Before putting the mounting 2 into thenail barrel 3, the mounting 2 can be extended to a first state, at the moment, the outer diameter of the mounting 2 is smaller, the inside of thenail barrel 3 can be put into more easily, after the mounting 2 is put into the inside of thenail barrel 3, the mounting 2 is compressed to enable the mounting 2 to enter a second state, namely, the outer diameter is increased while the length is reduced, so that a stable matched structure is formed with the inner wall surface of thenail barrel 3.
The auxiliary sheet fixing structure provided by the utility model can be independently placed without being arranged on the nail barrel part of the anastomat before being used, and can be selectively arranged by a user according to the requirement, the operation is simpler, and only the fixing part of the auxiliary sheet fixing structure needs to be inserted into the nail barrel; can also be directly arranged on the nail barrel part of the anastomat without being arranged by the user.
The utility model provides an it has following advantage to assist piece fixed knot structure and circular tube type anastomat:
the utility model provides an auxiliary sheet fixed knot constructs for tubular anastomat can fix auxiliary sheet in a nail section of thick bamboo in operation the place ahead conveniently through auxiliary sheet fixed knot constructs to can keep auxiliary sheet's positional stability well before nail storehouse subassembly reachs the operation position, avoid the unexpected break away from of auxiliary sheet, in addition, because the mounting sets up in a nail section of thick bamboo inboard, can not influence a nail section of thick bamboo external diameter, simple to operate, simple to use.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (16)
Translated fromChinesePriority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021053148.9UCN212996590U (en) | 2020-06-10 | 2020-06-10 | Auxiliary sheet fixing structure and circular tube type anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021053148.9UCN212996590U (en) | 2020-06-10 | 2020-06-10 | Auxiliary sheet fixing structure and circular tube type anastomat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212996590Utrue CN212996590U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021053148.9UActiveCN212996590U (en) | 2020-06-10 | 2020-06-10 | Auxiliary sheet fixing structure and circular tube type anastomat |
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| CN (1) | CN212996590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117379126A (en)* | 2023-10-12 | 2024-01-12 | 北京博辉瑞进生物科技有限公司 | Staple cartridge assembly for tubular anastomat and tubular anastomat |
- 2020
- 2020-06-10CNCN202021053148.9Upatent/CN212996590U/enactiveActive
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117379126A (en)* | 2023-10-12 | 2024-01-12 | 北京博辉瑞进生物科技有限公司 | Staple cartridge assembly for tubular anastomat and tubular anastomat |
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