CN106923876A - Tissue closing device and the medicine equipment including the tissue closing device - Google Patents
Tissue closing device and the medicine equipment including the tissue closing device Download PDFInfo
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- CN106923876A CN106923876A CN201511029121.XA CN201511029121A CN106923876A CN 106923876 A CN106923876 A CN 106923876A CN 201511029121 A CN201511029121 A CN 201511029121A CN 106923876 A CN106923876 A CN 106923876A
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- 239000003814 drug Substances 0.000 title abstract 2
- 238000010304 firing Methods 0.000 claims description 16
- 206010016717 Fistula Diseases 0.000 abstract description 4
- 230000003890 fistula Effects 0.000 abstract description 4
- 210000001519 tissue Anatomy 0.000 description 69
- 230000006872 improvement Effects 0.000 description 9
- 230000003872 anastomosis Effects 0.000 description 8
- 241000282326 Felis catus Species 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000001035 gastrointestinal tract Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003903 pelvic floor Anatomy 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
-
- 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
- A61B17/07207—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 the staples being applied sequentially
-
- 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
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
- A61B17/1155—Circular staplers comprising a plurality of staples
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B2017/1142—Purse-string sutures
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Physiology (AREA)
Abstract
Present invention is disclosed a kind of tissue closing device and medicine equipment.The tissue closure component includes：The clamping face of the first clamping part and the second clamping part, first clamping part and second clamping part is set in dentation；At least one pair of pocket component of first clamping part and second clamping part is respectively cooperating with, each pocket component includes：Syringe needle, the purse wire that one end is connected with the syringe needle, and it is removably connected the push rod of the syringe needle；The connection sheet for being arranged at first clamping part and/or the second clamping part distal end coordinated with the pocket component, the connection sheet can be connected with the syringe needle；Wherein, first clamping part and second clamping part are respectively equipped with the passage for allowing the pocket component to be moved from the tissue closing device proximate direction.The present invention forms the boundling pocket that center is drawn in by tissue closing device, reduces the risk and operation cost that fistula is produced after follow-up circular-pipe anastomat coincide.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a tissue closing device and a medical instrument comprising the same.
Background
In the existing digestive tract anastomosis operation, a linear or arc-shaped anastomat is generally used for performing multi-angle separation anastomosis on tubular tissues, and then a circular tube-shaped anastomat is used for performing butt anastomosis on the separated tissues.
However, after the linear or arc-shaped anastomat is used for performing the separation anastomosis on the tubular tissues, as the anastomosis opening is linear, particularly when the lower rectum position is performed, the phenomenon of cross nailing can occur due to the limitation of the operating space of the pelvic floor of the human body and the limitation of the swing angle of the linear instrument, so that the cat ear can exist when the circular tubular anastomat is reused for anastomosis, the fistula risk is caused, and the operation cost is higher.
Disclosure of Invention
The invention aims to provide a tissue closing device and a medical instrument comprising the same.
To achieve one of the above objects, one embodiment of the present invention provides a tissue closure device comprising: the clamping device comprises a first clamping seat and a second clamping seat which can be opened and closed relatively, wherein a first clamping part and a second clamping part are respectively arranged on the opposite sides of the first clamping seat and the second clamping seat, the clamping surfaces of the first clamping part and the second clamping part are arranged in a tooth shape, when the first clamping seat and the second clamping seat are closed, a gap for clamping tubular tissues is arranged between the first clamping part and the second clamping part, and the cross section of the gap is in a wave shape;
at least one pair of purse-string components respectively engaged with the first and second clamping portions and drivingly movable in a proximal direction from the tissue closure device distal end, each purse-string component comprising: the needle head, one end of the purse wire is connected with the needle head, and the push rod is detachably connected with the needle head;
the connecting piece is matched with the pouch assembly and arranged at the far end of the first clamping part and/or the second clamping part, and when the needle head is positioned at a firing position, the connecting piece is connected with the needle head;
wherein the first and second clamp portions are each provided with a channel that allows the purse string assembly to move in a distal direction from the proximal end of the tissue closure device.
As a further improvement of an embodiment of the present invention, the connecting piece is provided with a receiving portion for receiving the needle, and the receiving portion restrains the needle in an axial direction of the pouch assembly after the needle is connected to the connecting piece.
As a further improvement of an embodiment of the present invention, the push rod is provided with a hollow needle sleeve with two open ends, one end of the purse wire of each purse-string component is arranged in the corresponding needle sleeve and connected with the corresponding needle, and the other end of the purse wire of each purse-string component is arranged outside the corresponding needle sleeve.
As a further improvement of one embodiment of the present invention, the tissue closure device further comprises a cutting blade, and the first holder and the second holder are respectively provided with a notch for matching with the cutting blade, and the notch extends from the proximal ends of the first holder and the second holder to the distal ends.
As a further improvement of an embodiment of the present invention, the tissue closing device comprises at least two pairs of purse-string components, the first holder and the second holder are respectively provided with at least two channels, and the channels on each holder are symmetrically arranged on two sides of the corresponding chute.
As a further improvement of an embodiment of the present invention, each of the first clamping portion and the second clamping portion includes a body, and a plurality of protrusions spaced apart from each other in a longitudinal direction of the body, each protrusion having at least one slit extending in the longitudinal direction, and at least a portion of the plurality of slits located on the same plane forming the channel.
As a further improvement of an embodiment of the present invention, each slit extends vertically to the bottom of the corresponding projection.
As a further improvement of an embodiment of the present invention, the tissue closing device is provided with a first purse-string component and a second purse-string component, the purse-string lines of the first purse-string component and the second purse-string component are continuous ligatures, a first end of the ligature is connected with the needle head of the first purse-string component, and a second end of the ligature is connected with the needle head of the second purse-string component.
As a further improvement of an embodiment of the present invention, the tissue closure device comprises a first pouch assembly, a second pouch assembly, a third pouch assembly, a fourth pouch assembly, the first pouch assembly and the third pouch assembly are disposed in cooperation with the first clamping portion, the second pouch assembly and the fourth pouch assembly are disposed in cooperation with the second clamping portion; wherein,
the purse wires of the first purse-string component and the second purse-string component are arranged into a continuous first binding wire, the first end of the first binding wire is connected with the needle head of the first purse-string component, and the second end of the first binding wire is connected with the needle head of the second purse-string component;
the purse wires of the third purse-string component and the fourth purse-string component are set to be continuous second binding wires, the first end of each second binding wire is connected with the needle head of the third purse-string component, and the second end of each second binding wire is connected with the needle head of the fourth purse-string component.
In order to achieve one of the above objects, an embodiment of the present invention provides a medical apparatus, which includes an apparatus body, a firing device connected to the apparatus body, and a tissue closure assembly according to any one of the above technical solutions, where the tissue closure assembly is connected to the apparatus body.
As a further improvement of one embodiment of the invention, the medical instrument further comprises a retraction device, and the retraction device can drive the push rod to be disengaged from the needle after the needle reaches the firing position.
Compared with the prior art, the invention has the beneficial effects that: the cluster purse with the center folded is formed by the tissue closing device, the risk of cat ears and fistulas generated after the subsequent circular tube type anastomat is anastomosed is reduced, and meanwhile, the operation is simple, the use is convenient, and the operation cost is reduced.
Drawings
FIG. 1 is a schematic view of a medical device according to one embodiment of the present invention;
FIG. 2 is a perspective view of an apparatus body of the medical device in accordance with one embodiment of the present invention;
FIG. 3 is a cross-sectional view of a first cartridge and a second cartridge in an open position in accordance with an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a tissue closure device in an initial state according to one embodiment of the present invention;
FIG. 5 is a schematic diagram of the construction of a purse assembly according to one embodiment of the invention;
FIG. 6 is a cross-sectional view A-A of FIG. 3;
FIG. 7 is a schematic perspective view of a first holder according to an embodiment of the invention;
FIG. 8 is a cross-sectional view of a purse assembly according to one embodiment of the invention after firing;
FIG. 9 is a cross-sectional view of a tissue closure device in a fired condition according to one embodiment of the present invention;
FIG. 10 is a cross-sectional view of a tissue closure device in a fully fired condition according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
For clarity of presentation of the positions and orientations described within this disclosure, reference is made to the operator of the instrument, with the end proximal to the operator being the proximal end and the end distal from the operator being the distal end.
As shown in fig. 1 and 2, the present invention discloses an embodiment of a medical instrument, which can be used in an anastomosis procedure of the digestive tract, and comprises an instrument body 10, a firing device 20 (such as firing handles 201 and 203) connected to the instrument body 10, a retraction device 30, and a tissue closing device 40 detachably connected to the instrument body 10. Generally, the tissue closure device 40 is disposed at the distal end of the instrument body 10.
The tissue closure device 40 includes a connecting portion 401, a first cartridge 403a and a second cartridge 403b pivotally connected and relatively openable and closable. Wherein, the connecting part 401 is used for connecting with the instrument body 10, and the structures which are arranged in the connecting part 401 and need to be controlled are related with the firing device 20, the retracting device 30 and the like of the instrument body.
The instrument body 10 may generally follow the instrument body structure of the existing linear or arc stapler, or may be designed separately, and it should be understood that the structure of the instrument body 10 is only required to cooperate with the tissue closing device 40, for example, the tissue closing device 40 may be driven to suture tissue, or suture and cut tissue, and will not be described herein again. The tissue closure device 40 will be described in detail below.
As shown in fig. 3 and 4, a first clamping portion 405a and a second clamping portion 405b are respectively disposed on opposite sides of the first holder 403a and the second holder 403 b.
The first clamping portion 405a and the first clamping seat 403a can be integrally formed and can also be connected in an assembling manner; the second clamping portion 405b and the second clamping seat 403b may be integrally formed or may be assembled. In this embodiment, the first clamping portion 405a may be considered as a part of the first holder 403a, and the second clamping portion 405b may be considered as a part of the second holder 403 b.
The clamping surfaces of the first clamping part 405a and the second clamping part 405b are arranged in a tooth shape. Referring to fig. 4, when the first holder 403a and the second holder 403b are closed, a gap for holding the tubular tissue 100 is provided between the first holder 405a and the second holder 405b, the cross section of the gap is wavy, and accordingly, the tubular tissue 100 held by the first holder 405a and the second holder 405b is also positioned in a wavy manner.
It is understood that when the tubular tissue is disposed between the first holder 403a and the second holder 403b, the portion for clamping the tubular tissue 100 is referred to as a clamping surface of the first clamping portion 405a and the second clamping portion 405b, and the clamping surface may be the whole of the opposing surface of the first clamping portion 405a and the second clamping portion 405b or a portion of the opposing surface of the first clamping portion 405a and the second clamping portion 405 b.
In this embodiment, the tissue closure device further comprises: at least one pair of purse-string elements 50 that engage the first and second clamp portions 405a, 405b, respectively, and that can be driven to move in a proximal direction from the distal end of the tissue closure device (i.e., one purse-string element 50 of each pair of purse-string elements is disposed in engagement with the first clamp portion 405a and the other purse-string element 50 is disposed in engagement with the second clamp portion 405 b), and a connecting tab 60 disposed at the distal end of the first and/or second clamp portions 405a, 405b in engagement with the purse-string elements 50, the connecting tab being operable to support the closed first and second clamp holders 403a, 403b while preventing tubular tissue clamped between the first and second clamp portions 405a, 405b from spilling.
As shown in fig. 5, in the present embodiment, each of the purse elements 50 includes: a needle 501, a purse wire 503 with one end connected with the needle 501, and a push rod detachably connected with the needle 501.
The needle 501 comprises an initial position and a fired position, and when the tissue closure device is in the initial state, the needle 501 is in the initial position and is located at the proximal end of the clamping surface; when the tissue closure device is in a fired state, the needle 501 is in a fired position, and the needle 501 is located at the distal end of the clamping surface and is connected to the connecting tab 60.
The first and second clamping portions 405a, 405b are each provided with a channel 4051 which allows the purse string component to move in a distal direction from the proximal end of the tissue closure device, i.e., the first and second clamping portions 405a, 405b are each provided with a channel 4051 which allows the needle 501 to move from its initial position to its fired position, although the channels may also allow the purse string component to move in a proximal direction from the distal end of the tissue closure device if desired. The number of the channels 4051 is the same as the number of the purse string assemblies 50.
Further, to facilitate the connection of the needle 501 and the accommodation of the purse wire 503, the push rod is configured as a hollow needle hub 505 with two open ends. Of course, the plunger may be solid or have a rounded groove, so long as the plunger is capable of supporting the needle 501 in a distal direction from the proximal end of the tissue closure device.
One end of the purse wire 503 of each purse string assembly 50 is disposed within and connected to the corresponding needle hub 505 and the other end of the purse wire of each purse string assembly is disposed outside of the corresponding needle hub 505.
It will be appreciated that the corresponding needle hub, needle 501, described above, are referred to as the needle hub and needle 501 in the same purse string assembly 50.
In this embodiment, the other end of the purse wire 503 opposite to the end connected to the corresponding needle 501 may be a free end, and is disposed in the connecting portion 401 or the device body 10; it may also be connected to the needle 501 of another purse-string component to facilitate purse-string tightening, as will be described in more detail in two examples:
in one example, the tissue closure device is provided with a pair of purse-string components 50, which are a first purse-string component and a second purse-string component respectively, the purse-strings of the first purse-string component and the second purse-string component are continuous ligatures, the first end of the ligature is connected with the needle of the first purse-string component, and the second end of the ligature is connected with the needle of the second purse-string component.
In example two, the tissue closure device is provided with two pairs of purse-string components 50, which are a first purse-string component, a second purse-string component, a third purse-string component, and a fourth purse-string component, respectively, the first and third purse-string components being disposed in cooperation with the first clamping portion 405a, the second and fourth purse-string components being disposed in cooperation with the second clamping portion 405 b; wherein,
the purse wires of the first purse-string component and the second purse-string component are arranged into a continuous first binding wire, the first end of the first binding wire is connected with the needle head of the first purse-string component, and the second end of the first binding wire is connected with the needle head of the second purse-string component;
the purse wires of the third purse-string component and the fourth purse-string component are set to be continuous second binding wires, the first end of each second binding wire is connected with the needle head of the third purse-string component, and the second end of each second binding wire is connected with the needle head of the fourth purse-string component. It can be understood that: the tissue closure device may also be provided with more than two pairs of purse-string members 50 in a manner similar to that described above.
Further, the tissue closure device further comprises positioning members 507, and each positioning member 507 corresponds to at least one pair of purse-string components 50. The retainer 507 is adapted to engage the needle hub 505 of the purse string assembly 50 to hold the two needle hubs 505 of at least one pair of purse string assemblies stationary relative to each other.
In this embodiment, the positioning member is provided with at least two through holes, and each through hole is disposed outside one needle hub 505, for example, sleeved on the proximal end of the needle hub 505.
As shown in fig. 6, the connecting piece 60 may be disposed on the first holder 403a or the second holder 403 b. Of course, the connecting piece 60 may also include two parts respectively disposed on the first holder 403a and the second holder 403b, and the two parts form the connecting piece 60 in a manner similar to a latch when the first holder 403a and the second holder 403b are closed.
The connecting piece 60 is provided with a receiving portion 601 for receiving the needles 501, and the number and the position of the receiving portions are matched with those of the needles 501. The receiving part can be set to be a through hole with elasticity, the aperture of the through hole can be enlarged under the action of external force, and the aperture of the through hole returns to be normal after the external force is lost.
When the needle 501 is connected to the connecting piece 60, the receiving portion 601 limits the needle 501 in the axial direction of the purse string assembly. By limiting the connection tabs 60, the needle 501 and the needle hub 505 may be easily separated subsequently when the tissue closure device is converted from a fired state to a fired complete state.
The connecting piece 60 also serves to provide a certain strength of support at the distal end for the closing of the first holder 403a and the second holder 403 b. In this way, the angle of the jaw formed by the first holder 403a and the second holder 403b can be kept fixed. It will be appreciated that the closing and firing forces of the instrument can be reduced by setting the height of the tab 60 to form a counter jaw with a distal gap that is less than the proximal gap.
In the present embodiment, since the first and second clamping portions 405a and 405b have similar structures (only the teeth are in a staggered form), the structures of the first and second clamping portions 405a and 405b will be described below by way of example only with reference to the first clamping portion 405 a.
As shown in fig. 7, each of the first clamping portion 405a and the second clamping portion 405b includes a body 4053, and a plurality of protrusions 4057 spaced apart from each other in the longitudinal direction of the body 4053, each protrusion 4057 is provided with at least one slit 4059 extending in the longitudinal direction, and at least a portion of the plurality of slits on the same plane form the channel 4051. Here, the longitudinal direction means a direction in which the first clip portion 405a and the second clip portion 405b extend at both ends.
As shown in fig. 7 and 8, further, each slit 4059 extends vertically to the bottom of the corresponding protrusion 4057, so that the formed pouch is more reliable by the tooth-shaped clamping surface formed by the protrusion.
Further, the tissue closure device of this embodiment may be used to both purse string tubular tissue alone and to cut tubular tissue simultaneously with or after purse string.
As shown in fig. 7 and 9, the tissue closing device of the present embodiment may further include a cutting knife 70, and the cutting knife 70 may be configured as an i-shaped knife to close and open the first holder 403a and the second holder 403b, and the principle thereof is similar to that of the conventional linear or arc stapler, and will not be described herein again.
Further, the first holder 403a and the second holder 403b are respectively provided with a slot 701 for engaging with the cutting blade 70, and the slot 701 extends from the proximal end of the first holder 403a to the distal end of the second holder 403 b.
Further, if the tissue closure device comprises at least two pairs of purse-string components 30, at least two channels 4051 are respectively disposed on the first clamping portion 405a and the second clamping portion 405b, and the channels 4051 on each clamping seat are symmetrically disposed on two sides of the corresponding channel 701. In this embodiment, the passages of the purse components of the same pair are disposed on the same side of the chute 701.
Taking the second example as an example, the channels corresponding to the first and third purse components are respectively disposed on two sides of the chute 701 on the first holder 403 a; the passages of the second and fourth pouch assemblies are respectively disposed at two sides of the chute 701 on the second holder 403 b. So, each purse of the both sides of cutter is formed by two sets of purse-string components, makes the purse-string have better intensity like this, prevents that the purse-string from scattering and the tissue slippage under the effect of external force.
In the use process of the medical device of one embodiment of the invention:
as shown in fig. 3, the first holder 403a and the second holder 403b are in an open state, and tubular tissue is placed between the first clamping portion 405a and the second clamping portion 405 b;
as shown in fig. 4, the first and second holders 403a and 403b are closed by the firing device 20 (e.g., by the firing handle 201) such that the first and second holders 403a and 403b are in a closed state to hold the tubular tissue 100, and at the same time, the first and second holders 403a and 403b are fixed relative to each other by the connecting pieces and prevent the tubular tissue from overflowing, and the tissue closing device is in an initial state;
as shown in fig. 8, the purse string assembly 50 is fired by the firing device 20 (e.g., by the firing handle 201), so that the needle 501 of the purse string assembly 50 passes through the wavy tubular tissue 100 and is connected to the connecting piece 60, thereby completing the purse string and forming a bunched purse that is folded at the center on the tubular tissue;
as shown in fig. 9, the cutting knife 70 is fired to cut the pouched tubular tissue 100 by action of the firing device 20 (e.g., by the firing handle 203), with the tissue closure device in a fired state;
as shown in FIG. 10, the cutting blade 70 and the needle hub 505 are simultaneously retracted to the initial position of the tissue closure device by the retraction mechanism 30 (the cutting blade 70 is retracted through the channel 701 and the needle hub 505 is retracted through the channel 4051), and the first and second jaws 403a, 403b are opened by the cutting blade 70, and the tissue closure device is in a fully fired state, allowing the tissue therein to be removed.
It is understood that, in the present embodiment, the cutting knife 70 may not be installed, and only the string threading of the purse may be completed; of course, the purse string assembly 50 and the cutting knife 70 may also be fired simultaneously to effect threading and cutting.
According to the technical scheme, the risk of cat ears and fistulas generated after the subsequent circular tube type anastomat is anastomosed is reduced, in addition, only one-time operation is needed when tissues are closed, the use is convenient, and the operation cost is reduced.
In addition, in the purse-string mode, tissues can be evenly paved in gaps formed by the wavy clamping seats, so that the needles can evenly penetrate through the tissues; the purse wire can completely pierce the mucous membrane layer of the tubular tissue, the formed purse is more reliable, and the tissue is not easy to slip under external force when the circular tube type instrument is used for anastomosis subsequently. Moreover, as the volume of the purse wire is smaller, the formed purse does not artificially increase the volume of the purse like the purse formed by a bandage and other materials, so that the purse is more convenient for being subsequently accommodated into a tubular instrument. Meanwhile, the clamping space formed by the matching of the first clamping part and the second clamping part is wavy, so that the length of the tissue closing assembly is effectively reduced, and the tissue closing assembly can better enter deeper positions of the pelvic floor of a human body.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (11)
1. A tissue closure device, comprising:
the clamping device comprises a first clamping seat and a second clamping seat which can be opened and closed relatively, wherein a first clamping part and a second clamping part are respectively arranged on the opposite sides of the first clamping seat and the second clamping seat, the clamping surfaces of the first clamping part and the second clamping part are arranged in a tooth shape, when the first clamping seat and the second clamping seat are closed, a gap for clamping tubular tissues is arranged between the first clamping part and the second clamping part, and the cross section of the gap is in a wave shape;
at least one pair of purse-string components respectively engaged with the first and second clamping portions and drivingly movable in a proximal direction from the tissue closure device distal end, each purse-string component comprising: the needle head, one end of the purse wire is connected with the needle head, and the push rod is detachably connected with the needle head;
the connecting piece is matched with the pouch assembly and arranged at the far end of the first clamping part and/or the second clamping part, and when the needle head is positioned at a firing position, the connecting piece is connected with the needle head;
wherein the first and second clamp portions are each provided with a channel that allows the purse string assembly to move in a distal direction from the proximal end of the tissue closure device.
2. The tissue closure device of claim 1 wherein the connecting tab is provided with a receptacle for receiving the needle, the receptacle retaining the needle in the axial direction of the purse string assembly when the needle is connected to the connecting tab.
3. The tissue closure device of claim 2, wherein the push rod is configured as a hollow needle hub open at both ends, one end of the purse wire of each purse-string component is configured within and connected to the corresponding needle hub, and the other end of the purse wire of each purse-string component is configured outside the corresponding needle hub.
4. The tissue closure device of claim 1 further comprising a cutting blade, wherein the first and second holders are each provided with a channel that engages the cutting blade, the channels extending distally from the proximal ends of the first and second holders.
5. The tissue closure device of claim 4 wherein said tissue closure device comprises at least two pairs of purse-string elements, said first and second holders each having at least two of said channels, and the channels on each holder being symmetrically disposed on either side of the corresponding runner.
6. The tissue closure device of claim 1, wherein the first clamping portion and the second clamping portion each comprise a body and a plurality of protrusions spaced apart in a longitudinal direction of the body, each protrusion defining at least one longitudinally extending slit, at least a portion of the plurality of slits in a common plane defining the channel.
7. The tissue closure device of claim 6 wherein each slit extends vertically to the bottom of the corresponding projection.
8. The tissue closure device of claim 1 wherein the tissue closure device is provided with a first purse string component and a second purse string component, the purse strings of the first purse string component and the second purse string component being continuous ligatures, a first end of the ligature being connected to the needle of the first purse string component and a second end of the ligature being connected to the needle of the second purse string component.
9. The tissue closure device of claim 1 wherein the tissue closure device comprises a first purse component, a second purse component, a third purse component, a fourth purse component, the first and third purse components disposed in cooperation with the first grip, the second and fourth purse components disposed in cooperation with the second grip; wherein,
the purse wires of the first purse-string component and the second purse-string component are arranged into a continuous first binding wire, the first end of the first binding wire is connected with the needle head of the first purse-string component, and the second end of the first binding wire is connected with the needle head of the second purse-string component;
the purse wires of the third purse-string component and the fourth purse-string component are set to be continuous second binding wires, the first end of each second binding wire is connected with the needle head of the third purse-string component, and the second end of each second binding wire is connected with the needle head of the fourth purse-string component.
10. A medical instrument comprising an instrument body, a firing device coupled to the instrument body, wherein the medical instrument further comprises a tissue closure assembly as in any of claims 1-9 coupled to the instrument body.
11. The medical device of claim 10, further comprising a retraction device that drives the pushrod out of engagement with the needle after the needle reaches a fired position.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511029121.XA CN106923876B (en) | 2015-12-31 | 2015-12-31 | Tissue closing device and medical instrument including the tissue closing device |
| PCT/CN2016/112368 WO2017114386A1 (en) | 2015-12-31 | 2016-12-27 | Tissue closing device and medical instrument comprising tissue closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511029121.XA CN106923876B (en) | 2015-12-31 | 2015-12-31 | Tissue closing device and medical instrument including the tissue closing device |
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| Publication Number | Publication Date |
|---|---|
| CN106923876A true CN106923876A (en) | 2017-07-07 |
| CN106923876B CN106923876B (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511029121.XA Active CN106923876B (en) | 2015-12-31 | 2015-12-31 | Tissue closing device and medical instrument including the tissue closing device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106923876B (en) |
| WO (1) | WO2017114386A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108814680B (en) * | 2018-04-10 | 2019-06-25 | 中国人民解放军陆军军医大学第二附属医院 | Purse-string forceps for single-hole laparoscopic surgery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0604789A1 (en) * | 1992-12-31 | 1994-07-06 | K. Widmann Ag | Surgical clamping element for making a purse string |
| CN1923147A (en) * | 2005-08-31 | 2007-03-07 | 伊西康内外科公司 | Staple cartridges for forming staples having differing formed staple heights |
| CN201082177Y (en) * | 2007-06-28 | 2008-07-09 | 苏州天臣国际医疗科技有限公司 | Surgical automatic pouched suturing device |
| CN103976769A (en) * | 2014-05-21 | 2014-08-13 | 上海理工大学 | Purse string suture device and operation method thereof |
| CN104434243A (en) * | 2013-09-23 | 2015-03-25 | 瑞奇外科器械(中国)有限公司 | End effector, surgical operating instrument and purse-string forceps |
| CN205569002U (en) * | 2015-12-31 | 2016-09-14 | 苏州天臣国际医疗科技有限公司 | Organize closing device to reach medical instrument including this tissue closing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203564286U (en) * | 2013-09-23 | 2014-04-30 | 瑞奇外科器械(中国)有限公司 | End effector, surgical operating instrument and purse-string clamp |
-
2015
- 2015-12-31 CN CN201511029121.XA patent/CN106923876B/en active Active
-
2016
- 2016-12-27 WO PCT/CN2016/112368 patent/WO2017114386A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0604789A1 (en) * | 1992-12-31 | 1994-07-06 | K. Widmann Ag | Surgical clamping element for making a purse string |
| CN1923147A (en) * | 2005-08-31 | 2007-03-07 | 伊西康内外科公司 | Staple cartridges for forming staples having differing formed staple heights |
| CN201082177Y (en) * | 2007-06-28 | 2008-07-09 | 苏州天臣国际医疗科技有限公司 | Surgical automatic pouched suturing device |
| CN104434243A (en) * | 2013-09-23 | 2015-03-25 | 瑞奇外科器械(中国)有限公司 | End effector, surgical operating instrument and purse-string forceps |
| CN103976769A (en) * | 2014-05-21 | 2014-08-13 | 上海理工大学 | Purse string suture device and operation method thereof |
| CN205569002U (en) * | 2015-12-31 | 2016-09-14 | 苏州天臣国际医疗科技有限公司 | Organize closing device to reach medical instrument including this tissue closing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106923876B (en) | 2019-07-09 |
| WO2017114386A1 (en) | 2017-07-06 |
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Address after: 215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province Patentee after: Tianchen International Medical Technology Co., Ltd Address before: 215021 science and Technology Plaza, Jinji Lake Road International Science and Technology Park, Suzhou Industrial Park, Jiangsu, 21A Patentee before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |