CN108261227B - Puncture core subassembly and have its puncture ware - Google Patents

Puncture core subassembly and have its puncture ware Download PDF

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Publication number
CN108261227B
CN108261227B CN201611271006.8A CN201611271006A CN108261227B CN 108261227 B CN108261227 B CN 108261227B CN 201611271006 A CN201611271006 A CN 201611271006A CN 108261227 B CN108261227 B CN 108261227B
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puncture
assembly
suture
rod
puncture core
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CN108261227A (en
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孙宝峰
马猛
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Jiangsu Fengh Medical Equipment Co Ltd
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Jiangsu Fengh Medical Equipment Co Ltd
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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
    • A61B17/34—Trocars; Puncturing needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/0469—Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/0491—Sewing machines for surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238—Type of minimally invasive operation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/0034—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means adapted to be inserted through a working channel of an endoscope

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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)
  • Pathology (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention discloses a puncture core assembly, which comprises a puncture assembly and a suture assembly; the puncture assembly comprises a puncture end and a puncture core rod, the suture assembly is positioned in the puncture assembly, and at least one part of the suture assembly can move in the puncture assembly; when suturing is carried out, an accommodating space is formed between the puncture end and the puncture core rod, and one end of a suture line penetrates through tissues in the accommodating space through the movement of the suturing component. According to the puncture core assembly and the puncture outfit with the same, the puncture hole does not need to be enlarged, and additional surgical instruments do not need to be added, so that the puncture effect can be realized to establish a channel for an anastomat or other surgical instruments to enter a patient body; the puncture hole can be sutured in a narrow puncture hole, and the suturing effect is good; can effectively avoid the puncture hole hernia caused by the puncture hole of the minimally invasive surgery, effectively reduce the pain of the patient and facilitate the postoperative rehabilitation of the patient.

Description

Puncture core subassembly and have its puncture ware
Technical Field
The invention relates to a surgical instrument, in particular to a puncture core assembly and a puncture outfit with the same, and belongs to the field of medical equipment.
Background
In abdominal cavity examination, abdominal cavity operation and other minimally invasive or surgical operations, a puncture outfit is an indispensable surgical instrument. The puncture instrument may establish an access channel in the abdominal wall of the body for the entry of a stapler or other surgical instrument (e.g., endoscope, scissors, guide wire, catheter, filter, stent, etc.) into the abdominal cavity and provide a passage for the ingress and egress of gas to control the pneumoperitoneum required for the procedure to be performed for examination or surgical procedures.
In the minimally invasive laparoscopic medical operation, if the focus is found in a human body and needs to be operated or cut, pneumoperitoneum needs to be performed in the abdominal cavity of the human body in the operation process. The establishment of pneumoperitoneum is an important operation process of laparoscopic surgery, and under the condition of sufficient pneumoperitoneum, the distance between an abdominal cavity and an organ is expanded, the distance between the organ and the organ is also expanded, and a relatively wide visual field and an operation environment which is easy to operate are provided for an operator. After the pneumoperitoneum is completed, a doctor generally firstly cuts a small incision on the abdomen of a patient, then aligns the puncture end of the puncture outfit with the cut small incision to reciprocate and simultaneously moves the puncture outfit downwards, so that the puncture core assembly guides the puncture sleeve to pass through the cortex of the abdomen of the patient; then the puncture core component is pulled out, and the anastomat or other surgical instruments can enter and exit the abdominal cavity of the patient through the puncture cannula to carry out surgical operation. The existing puncture core assembly only plays a role of puncture, and the puncture cannula is discarded after being guided into a patient body from an incision of the abdomen of the human body.
And (4) removing the focus, taking out the puncture cannula assembly, and finishing the operation. The punctured wound is generally not sutured and is automatically healed only by the patient; because the puncture hole of the minimally invasive surgery is small and deep, particularly, the abdominal wall of an obese patient is thick, the visual field of the suture is small, the skin on the surface of the patient is only sutured after the surgery, and the peritoneum on the inner side of the abdominal wall is difficult to suture. Such patients are prone to serious complications such as hernia in the puncture hole after surgery, and require further treatment. When the puncture holes of patients need to be sutured, especially the puncture holes of fat patients, only a suturing device special for suturing the puncture holes can be used, but surgical instruments are additionally added, the suturing cost is high, the surgical instruments are multiple, and the operation is inconvenient; in addition, the suturing device specially used for suturing the puncture hole has a complex structure and is inconvenient to use.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a puncture core assembly with a puncture function and capable of suturing a puncture hole and a puncture outfit with the same, and the invention is realized by the following technical scheme:
a puncture core assembly comprising a puncture assembly and a suture assembly; the puncture assembly comprises a puncture end and a puncture core rod, the suture assembly is positioned in the puncture assembly, and at least one part of the suture assembly can move in the puncture assembly; when suturing, puncture end with puncture core bar relative motion is in order to form the accommodation space, through the removal of sewing up the subassembly, pass the one end of suture the tissue in the accommodation space, the sewing up subassembly includes first component and second component, first component with the second component liftoff is connected, the one end of suture is tied in on the second component, after the connection first component with the second component passes the one end of suture through the removal tissue in the accommodation space, puncture end still is provided with the storage tank, the storage tank can fix the second component.
The first element has a pointed end that is passable through and exposable from the second element.
The first element is a suture needle and the pointed end is a needle point.
The second element includes a through passage for receiving at least a portion of the first element such that the first element is releasably connectable with the second element.
The at least a portion of the first element includes a tip that passes through and emerges from the channel.
The suturing assembly further comprises a connecting rod, one end of the connecting rod is connected with the puncture end, the cross-sectional area of the connecting rod is smaller than that of the puncture end and the puncture core rod, the connecting rod can move in the puncture core rod, at least one part of the connecting rod extends out of the puncture core rod, and the accommodating space is formed between the puncture end and the puncture core rod.
The suture assembly further comprises a first inner rod, and the first inner rod is connected with the other end of the connecting rod or integrally formed.
The suture assembly further comprises a second inner rod, the suture needle is connected with the second inner rod, and the second inner rod can move in the puncture core rod to drive the suture needle to suture the tissues in the accommodating space.
The proximal end of the puncture core rod is also provided with a through groove which is used for accommodating the suture component and indicating the position of the suture component.
The outer surface of the first element and the outer surface of the second element do not exceed the outer surface of the puncture core rod.
The suture assembly comprises a first inner rod, the first inner rod is connected with the other end of the connecting rod or integrally formed, and the first inner rod can move in the second inner rod.
The height of the connecting rod is larger than or equal to the thickness of subcutaneous tissue of a patient.
A puncture instrument comprising the puncture core assembly as set forth in any one of the above, said puncture instrument comprising a puncture cannula assembly into which said puncture core assembly is extendable.
According to the puncture core assembly and the puncture outfit with the same, the puncture hole does not need to be enlarged, and additional surgical instruments do not need to be added, so that the puncture effect can be realized to establish a channel for an anastomat or other surgical instruments to enter a patient body; the puncture hole can be sutured in a narrow puncture hole, and the suturing effect is good; the puncture core assembly and the puncture outfit with the puncture core assembly can effectively avoid puncture hole hernia caused by a puncture hole of a minimally invasive surgery, and the puncture core assembly and the puncture outfit with the puncture core assembly can form a seamless space between a puncture end and a puncture core rod during puncture, so that a suture space is formed after puncture, the wound of a patient can not be scratched during puncture, the pain of the patient is effectively reduced, and the postoperative rehabilitation of the patient is facilitated.
Drawings
FIG. 1 is a schematic view of a prior art piercing core assembly;
FIG. 2 is a schematic view of the puncture core assembly at the time of puncture according to an embodiment of the present invention;
FIG. 3 is an exploded schematic view of a piercing core assembly according to an embodiment of the present invention;
FIG. 4 is a schematic view of a needle configuration of a core piercing assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of a suture fixation block configuration of a core piercing assembly in accordance with an embodiment of the present invention;
FIG. 6 is a schematic view of the piercing end structure of the piercing core assembly according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of the puncture core assembly after forming a suture space in accordance with an embodiment of the present invention;
FIG. 8 is a schematic representation of the configuration of the puncture core assembly upon suturing in accordance with an embodiment of the present invention;
FIG. 9 is a schematic structural view of a piercing core assembly upon removal in accordance with an embodiment of the present invention;
FIG. 10 is a schematic representation of a post-suture configuration of a piercing core assembly in accordance with an embodiment of the present invention;
fig. 11 is a schematic structural view of a puncture instrument according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1, the puncture core rod 20 of the puncture core assembly 1000 of the prior art is a hollow circular tube, the puncture end 10 is conical, and the rear end of the puncture end 10 is connected to the front end of the puncture core rod 20. The puncture core assembly in the prior art only plays a role of puncture, a puncture hole cannot be sutured, the puncture sleeve is discarded after being guided into a patient body from an incision of the abdomen of the human body, and a special suturing instrument must be reused if the puncture hole needs to be sutured.
The puncture core assembly 100 of the present embodiment includes a puncture assembly and a suture assembly. As shown in fig. 2, the puncture assembly comprises a puncture end 1, a puncture core bar 2 and a handle 3; as shown in fig. 3, the suture assembly comprises a first inner rod 5, a connecting rod 52, a second inner rod 6, a suture needle 7, a suture fixing block 8 and a suture 9. Preferably, the suturing assembly comprises two suture needles 7 and two suture fixation blocks 8. For convenience of description and simplification of description, in the embodiment of the present invention, based on the orientation or positional relationship shown in fig. 2, one end of each member near the piercing end 1 is referred to as "proximal end" or "lower" and "first end", one end near the handle 3 is referred to as "distal end" or "upper" and "second end", the axial direction of the piercing mandrel is referred to as "height" direction, and the radial direction of the piercing mandrel is referred to as "width" direction.
As shown in fig. 2 or fig. 3, the distal end of the first inner rod 5 is fixedly connected or integrally formed with the first button 4, the proximal end of the first inner rod 5 is integrally formed or fixedly connected with the distal end of the connecting rod 52, and the proximal end of the connecting rod 52 is fixedly connected with the distal end of the puncture tip 1, where the fixed connection means that two components having a fixed connection relationship are mutually independent components, and the connection is specifically a common manner in the art, such as adhesion, thread connection, melting, clamping, and the like. Preferably, the connecting rod 52 is provided with a mounting column 51 at the proximal end, the piercing end 1 is provided with a mounting hole 13 at the distal end, and the mounting column 51 is connected with the mounting hole 13 in an interference fit manner. The puncture end 1 is generally conical, and generally conical means that the puncture end 1 is conical or similar to a cone, namely, a generatrix of the puncture end 1 can be a straight line, and also can be an outward convex curve or an inward concave curve. The puncture core rod 2 is a hollow round tube, the diameters of the puncture core rod 2 from the near end to the far end are the same, and the maximum diameter of the puncture end 1 is approximately equal to the diameter of the puncture core rod 2.
The proximal end of the outer surface of the second inner rod 6 is provided with an accommodating cavity 62 for fixedly connecting with the suture needle 7; the far end of the second inner rod 6 is provided with a second key 63, and the second key 63 is fixedly connected with the second inner rod 6 or integrally formed with the second inner rod 6 and used for controlling the movement of the second inner rod 6. The first inner rod 5 extends into the second inner rod 6 from the distal end 64 of the second inner rod, and the first inner rod 5 can move in the second inner rod 6; the second inner rod 6 can move in the puncture core rod 2. The puncture end 1 and the puncture core rod 2 can move relatively through the connecting rod 52, and the height of the connecting rod 52 is larger than or equal to the thickness of subcutaneous tissue of a patient. The connecting rod 52 is a cylinder or a rectangular parallelepiped, and when the connecting rod 52 is a cylinder, its diameter is smaller than that of the puncture core bar 2, and the cross-sectional area of the connecting rod 52 is smaller than that of the puncture core bar 2 to form a space between the puncture end 1 and the puncture core bar 2. When the connecting rod 52 is a cuboid, the width and the length of the connecting rod are both smaller than the diameter of the puncture core rod 2; on the premise of satisfying the required strength, the smaller the cross-sectional area of the connecting rod 52 is, the better, and thus, the space formed between the distal end of the puncture tip 1 and the proximal end of the puncture core rod 2 is larger, and further, the central axis of the connecting rod 52 coincides with the central axis of the puncture core rod 2.
As shown in fig. 3, the distal end of the puncture core rod 2 is fixedly connected with or integrally formed with the handle 3; the handle 3 is a hollow cylinder, a first key channel 31 is arranged in the handle 3, and the central axis of the first key channel 31 is superposed with the central axis of the handle 3; the handle 3 is further provided with a second key channel 32 to provide a moving channel for the second key 63, and the second key channel 32 is symmetrically arranged on the outer wall of the handle 3. The puncture core rod 2 is a hollow round tube, the central axis of the first inner rod 5 coincides with the central axis of the puncture core rod 2, and the central axis of the second inner rod 6 coincides with the central axis of the puncture core rod 2. A spring 61 is also arranged in the puncture core rod 2, and the near end of the spring 61 is abutted against the near end of the puncture core rod 2; the distal end of the spring 61 abuts the distal end of the second inner rod 6.
The near end of the puncture core rod 2 is provided with a through groove 22, and the lower end of the through groove 22 extends to the lower end of the puncture core rod 2. The suture needle 7 is fixedly connected with the second inner rod 6 through the through groove 22, and the outer surfaces of the suture needle 7 and the suture fixing block 8 do not exceed the outer surface of the puncture core rod 2, so that the suture needle 7 is far away from the puncture hole during suture, and the distance between the two suture needles 7 is approximately equal to or smaller than the diameter of the puncture core rod 2. Preferably, the second inner rod 6 is in interference fit or transition fit with the suture needle 7, and further, the accommodating cavity 62 at the proximal end of the second inner rod 6 is in interference fit or transition fit with the tail end 71 of the suture needle, so that the proximal end of the second inner rod 6 is fixedly connected with the distal end of the suture needle 7. Preferably, the suturing assembly comprises two suturing needles 7, and correspondingly, the proximal end of the second inner rod 6 is provided with two accommodating cavities 62, and the two accommodating cavities 62 are symmetrically arranged. The receiving cavity 62 is provided on the outer surface of the second inner rod 6, which provides the maximum suture range without enlarging the puncture hole.
The proximal end of the puncture core rod 2 is symmetrically provided with two through grooves 22, after the suture needle 7 is in interference fit or transition fit with the second inner rod 6, the suture needle 7 is positioned in the through grooves 22, the suture thread fixing block 8 is arranged on a needle point 72 of the suture needle 7, the needle point 72 is exposed out of the suture thread fixing block 8, the suture needle 7 and the suture thread fixing block 8 are arranged in the through grooves 22, and the length of the through grooves 22 is equal to or slightly greater than that of the suture needle 7; and the outer surfaces of the suture needle 7 and the suture line fixing block 8 do not exceed the outer surface of the puncture core rod 2, so that the suture needle 7 is far away from the puncture hole during suture, and the distance between the two suture needles 7 is approximately equal to the diameter of the puncture core rod 2, thereby ensuring that the maximum suture range is provided on the premise of not enlarging the puncture hole.
The suture line fixing block 8 comprises a needle point channel 82 which is arranged in a vertically penetrating manner and is used for being connected with the suture needle 7, the needle point 72 penetrates through the needle point channel 82 and is exposed out of the needle point channel 82, and the needle point 72 is in clearance fit with the needle point channel 82; the side wall of the suture fixing block 8 is further provided with a winding groove 81, the tail 91 of the suture 9 is wound on the winding groove 81 and forms a knot at the winding groove 81, two tails 91 of the suture 9 are respectively matched with one suture fixing block 8, and the far end 92 of the suture 9 forms a slipknot at the second key 63 along the outer wall of the puncture core rod 2. As shown in fig. 6, the puncture end 1 is provided with a receiving groove 11 for matching with the suture fixing block 8; the suture line fixing block 8 is in interference fit with the accommodating groove 11; the mounting groove of storage tank 11 for with 8 profile modeling adaptations of stylolite fixed block, like this, after stylolite fixed block 8 got into storage tank 11, stylolite fixed block 8's surface and storage tank 11 laminated completely, and it is more firm to connect. Further, the size of the outer periphery of the puncture end 1 close to the accommodating groove 11 is the smallest, so that the risk that the suture fixing block 8 is radially dropped from the inside of the accommodating groove 11 after being installed in the accommodating groove 11 is avoided.
During operation, after pneumoperitoneum is completed, a doctor firstly cuts a small incision on the abdomen of a patient, the outer surface of the puncture end 1 is also provided with a separation structure 12, and the separation structure 12 and the puncture end 1 are integrally formed or fixedly connected. Then, the puncture end of the puncture outfit 300 of the invention is aligned with the small incision which is cut to reciprocate and simultaneously move the puncture outfit downwards, so that the puncture cannula passes through the abdominal cortex of the patient; the puncture core assembly 100 is then withdrawn, and the stapler or other surgical instrument may be passed through the puncture cannula assembly and into and out of the patient's abdominal cavity for surgical procedures. The skin of a human body is sequentially provided with a epidermis layer, a dermis layer and a subcutaneous tissue from outside to inside, and the occurrence of puncture hole hernia can be effectively prevented as long as the subcutaneous tissue at the puncture hole of a patient is sutured. Because the subcutaneous tissue of the patient is sutured, the puncture hole is not opened, and the epidermal layer and the dermal layer are easy to automatically heal.
After the focus is removed and the puncture cannula assembly is pulled out, the puncture core assembly 100 of the embodiment of the invention is inserted into the body of a patient from the puncture hole, as shown in fig. 2, when puncturing, the far end of the puncture end 1 is abutted against the near end of the puncture core rod 2, so that no gap exists between the puncture end 1 and the puncture core rod 2; the upper surface of the first key 4 is flush with the upper surface of the handle 3, and the second key 63 is positioned at the upper end of the second key channel 32; when puncturing, the puncture needle can not clamp the tissue of the patient. The handle 3 is grasped and the penetration continues downwardly until the proximal end of the piercing mandrel 2 is below the skin tissue of the patient.
One end of the connecting rod 52 is connected to the distal end of the puncture tip 1, and the other end is integrally formed or fixedly connected to the proximal end of the first inner rod 5. As shown in fig. 7, when the button 4 is pressed, the first inner rod 5 and the connecting rod 52 are pushed in sequence to further push the puncture tip 1 to move downwards, so that the distal end of the puncture tip 1 is separated from the proximal end of the puncture core rod 2 by a certain distance; since the cross-sectional area of the connecting rod 52 is smaller than that of the piercing core rod 2, a space is formed between the connecting rod 52 and the distal end of the piercing end 1 and the proximal end of the piercing core rod 2. At this time, the puncture core assembly 100 is moved upward by holding the grip 3 until the grip surface at the distal end of the puncture tip 1 comes into contact with the subcutaneous tissue layer of the patient. Due to the elasticity of human tissue, the tissue at the puncture hole of the patient can fill the space, namely the tissue at the puncture hole of the patient wraps the connecting rod 52 and fills the space between the distal end of the puncture end 1 and the proximal end of the puncture core rod 2.
As shown in fig. 8 to 10, next, the second button 63 is pressed, the second inner rod 6, the suture needle 7 and the suture fixing block 8 are sequentially pushed to move downwards, the needlepoints 72 of the two suture needles 7 guide the suture fixing block 8, and further drive the two end tails 91 of the suture thread 9 to gradually contact and pierce through the patient tissue in the space formed by the puncture end 1 and the puncture core rod 2 from two points A, B in fig. 10, and guide the suture fixing block 8 to be installed in the accommodating groove 11 on the puncture end 1, and at this time, the two end tails 91 of the suture thread 9 respectively penetrate out from two points D, C in fig. 7. Since the tail 91 of the suture 9 is previously knotted at the winding groove 81, the suture fixing block 8 introduces the tail 91 of the suture 9 under the subcutaneous tissue of the patient.
The slipknot formed at the second key 63 by the distal end 92 of the suture 9 is released and the distal end 92 of the suture 9 is in a free state. When the suture fixing block 8 is fixed in the accommodating groove 11 on the puncture end 1 (namely, the suture needle 7 is shown to completely puncture the subcutaneous tissue of the patient), the second key 63 is released, the spring 61 is released and extends, the elastic tension of the spring 61 pushes the second inner rod 6 to move upwards, the second inner rod 6 drives the suture needle 7 to move upwards, and the tissue of the patient prevents the clamping surface at the far end of the puncture end 1 from moving upwards and further prevents the puncture end 1 from moving upwards as the clamping surface at the far end of the puncture end 1 is positioned below the subcutaneous tissue of the patient; because the suture line fixing block 8 is in interference fit with the accommodating groove 11 of the puncture end 1, the suture line fixing block 8 is difficult to separate from the accommodating groove 11 after the suture line fixing block is matched with the accommodating groove 11, and the suture needle 7 is in clearance fit with the suture line fixing block 8; therefore, after the second button 63 is released, the second inner rod 6 drives the suture needle 7 to gradually separate from the suture line fixing block 8, the suture needle 7 is retracted into the through groove 22 at the proximal end of the puncture core rod 2, and the suture line fixing block 8 is located in the accommodating groove 11 at the puncture end 1. The puncture core assembly 100 is moved upwards by holding the handle 3, the puncture core rod 2, the connecting rod 52 and the puncture end 1 are separated from the body of a patient, the suture line fixing block 8 is fixedly connected with the accommodating groove 11 of the puncture end 1, the puncture end 1 and the suture line fixing block 8 are separated from the body of the patient, the suture line tail 91 of the suture line 9 is connected with the suture line fixing block 8, the suture line tail 91 of the suture line 9 is positioned below subcutaneous tissue of the patient, in the process that the puncture end 1 is separated from the body of the patient, the two suture line tails 91 of the suture line 9 move upwards from the puncture hole to drive the distal end 92 of the suture line 9 to gradually enter the body of the patient until the two points contact with the subcutaneous tissue. After the puncture tip 1 is separated from the body of the patient, the two tail ends 91 of the suture thread 9 are tightened and knotted, and then the redundant suture thread 9 is removed, thereby completing the suture of the puncture hole. The occurrence of puncture hernia can be effectively prevented only by suturing the subcutaneous tissue at the puncture hole of the patient; preferably, the patient is tied to the epidermis layer or dermis layer so that the knot is located within the puncture hole and does not leak out of the patient's skin to prevent post-operative contact with the knot, and the puncture hole does not open because the patient's subcutaneous tissue has been sutured, thereby facilitating automatic healing of the epidermis layer or dermis layer. Preferably, the suture 9 is a human absorbable suture.
Based on the puncture core assembly 100 as described above, the present invention further provides a puncture device 300, referring to fig. 11, the puncture device 300 further includes a puncture cannula assembly 200, during puncturing, the puncture core assembly 100 is inserted into the puncture cannula assembly 200, and the puncture cannula assembly 200 is guided into the abdominal cavity of the patient, so as to allow other surgical instruments to enter the body of the patient for performing a surgical operation, after the surgical operation is completed, the puncture core assembly 100 of the present invention can also suture the puncture hole.
In conclusion, according to the puncture core assembly and the puncture outfit with the same, the puncture hole does not need to be enlarged, and additional surgical instruments do not need to be added, so that the puncture function can be realized to establish a channel for an anastomat or other surgical instruments to enter a patient body; the puncture hole can be sutured in a narrow puncture hole, and the suturing effect is good; the puncture core assembly and the puncture outfit with the puncture core assembly can effectively avoid puncture hole hernia caused by a puncture hole of a minimally invasive surgery, and the puncture core assembly and the puncture outfit with the puncture core assembly can form a seamless space between a puncture end and a puncture core rod during puncture, so that a suture space is formed after puncture, the wound of a patient can not be scratched during puncture, the pain of the patient is effectively reduced, and the postoperative rehabilitation of the patient is facilitated.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (13)

1. A puncture core assembly comprising a puncture assembly and a suture assembly; the puncture assembly comprises a puncture end and a puncture core rod, the suture assembly is positioned in the puncture assembly, and at least one part of the suture assembly can move in the puncture assembly; when the suture is performed, an accommodating space is formed between the puncture end and the puncture core rod; the suture assembly comprises a first element and a second element, wherein the first element and the second element are detachably connected, one end of a suture is tied to the second element, and the connected first element and the second element pass one end of the suture through tissues in the accommodating space through movement; the puncture end is provided with a containing groove, and the containing groove is used for fixing the second element penetrating through the tissue.
2. The puncture core assembly of claim 1, wherein the first element has a pointed end that is passable through and exposable from the second element.
3. The puncture core assembly of claim 2, wherein the first element is a suture needle and the pointed end is a needle tip.
4. The puncture core assembly of claim 1, wherein the second element comprises a passageway therethrough for receiving at least a portion of the first element such that the first element is releasably connectable with the second element.
5. The puncture core assembly of claim 4, wherein the at least a portion of the first element comprises a tip that passes through and emerges from the channel.
6. The puncture core assembly of claim 1, wherein the suturing assembly further comprises a connecting rod, one end of the connecting rod being connected to the puncture end and the connecting rod having a cross-sectional area smaller than the cross-sectional area of the puncture end and the puncture core rod, the connecting rod being movable within the puncture core rod and at least a portion of the connecting rod extending beyond the puncture core rod to form the receiving space between the puncture end and the puncture core rod.
7. The puncture core assembly of claim 6, wherein the suturing assembly further comprises a first inner rod connected to or integrally formed with the other end of the connecting rod.
8. The puncture core assembly of claim 1 or 7, wherein the suturing assembly further comprises a second inner rod, the first element is connected with the second inner rod, and the second inner rod can move in the puncture core rod to drive the first element to suture the tissue in the accommodating space.
9. The puncture core assembly of claim 1, wherein the proximal end of the puncture core rod is further provided with a through slot for receiving the suturing assembly and indicating the position of the suturing assembly.
10. The puncture core assembly of claim 1, wherein the outer surface of the first member and the outer surface of the second member do not extend beyond the outer surface of the puncture core rod.
11. The puncture core assembly of claim 8, wherein the suturing assembly comprises a first inner rod movable within a second inner rod.
12. The puncture core assembly of claim 6, wherein the connecting bar has a height greater than or equal to the thickness of the subcutaneous tissue of the patient.
13. A puncture instrument comprising the puncture core assembly according to any one of claims 1 to 12, wherein the puncture instrument further comprises a puncture cannula assembly into which the puncture core assembly is extendable.
CN201611271006.8A 2016-12-30 2016-12-30 Puncture core subassembly and have its puncture ware Active CN108261227B (en)

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CN108261229B (en) * 2016-12-30 2020-02-04 江苏风和医疗器材股份有限公司 Puncture core subassembly and have its puncture ware
CN109674516B (en) * 2017-10-18 2020-11-10 江苏风和医疗器材股份有限公司 Puncture core subassembly and have its puncture ware
CN109984783B (en) * 2017-12-29 2021-08-06 江苏风和医疗器材股份有限公司 Suture assembly for suturing holes
CN109350153A (en) * 2018-12-10 2019-02-19 浙江格宜医疗器械有限公司 Suture punctures integrated device
CN111374738B (en) * 2018-12-29 2023-05-05 江苏风和医疗器材股份有限公司 Puncture core assembly and puncture outfit
CN111374739B (en) * 2018-12-29 2024-01-16 江苏风和医疗器材股份有限公司 Puncture core assembly and puncture outfit
CN111374737A (en) * 2018-12-29 2020-07-07 江苏风和医疗器材股份有限公司 Puncture core subassembly and puncture ware
CN109567901A (en) * 2019-01-03 2019-04-05 郑明友 Protection type incision surgical knife under hysteroscope
MX2021013453A (en) * 2019-05-02 2022-01-24 Fulbright Medical Inc Suture line release mechanism, puncturing core component, puncture outfit, and use method thereof.

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US6896685B1 (en) * 2003-01-29 2005-05-24 James A. Davenport Suture device
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