CN116236258A - Puncture suturing device and use method thereof - Google Patents

Abstract

The invention relates to the technical field of medical instruments, in particular to a puncture suturing device and a using method thereof. The puncture suturing device comprises: the puncture sleeve is detachably and fixedly connected with any one of the fascia component and the choke valve component; a fixing boss is arranged at one axial end of the puncture sleeve; the fixing boss is axially provided with a plurality of openings; one end, close to the puncture sleeve, of any one of the fascia component and the choke valve component is provided with a fixing groove, and the fixing groove is in socket connection with the fixing boss; a plurality of bulges corresponding to the openings are arranged on the inner side peripheral wall of the fixing groove; in the assembly process, the protrusions are in screwed clamping connection with the fixing bosses through the openings. The puncture suturing device provided by the invention can ensure that an operator can suture fascia without pulling out the puncture sleeve after the puncture is completed at the appointed position of the abdominal wall, thereby avoiding the risk of secondary injury of the wound of the patient.

Description

Puncture suturing device and use method thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to a puncture suturing device and a using method thereof.

Background

Compared with the traditional operation, the laparoscopic operation is a newly developed minimally invasive operation method, has the advantages of small incision, quick recovery and small pain, and is a necessary trend of the future operation method development. In laparoscopic surgical treatment, it is necessary to provide puncture passages having diameters of 5mm to 15mm penetrating the tissues of the abdominal wall so that surgical instruments can enter the abdominal cavity from these puncture passages.

The abdominal wall puncture outfit is a passage for the laparoscopic surgical instruments to enter the abdominal cavity from outside the human body, the surgical instruments are operated outside the abdominal cavity, and the operations such as exploration, electrocoagulation, hemostasis, tissue separation, incision and the like are performed on pathological tissues by means of the passage. After the operation is finished, a defect in the shape of a 'well' is formed on the abdominal wall, and myofascial defect of the abdominal wall is an important cause of complications such as puncture infection, puncture incision hernia and the like after laparoscopic operation. Therefore, in order to avoid the risk complications described above, etc., as much as possible after the operation, the tissue is collected by using a fascia stapler at the end of the operation, and percutaneous suturing is usually performed.

However, the laparoscopic procedure described above requires switching between the abdominal wall puncture device channel and the fascia stapler, which is prone to risk of secondary trauma to the patient's wound during withdrawal of the puncture device channel and reinsertion of the obturator. Therefore, there is a need for a puncture outfit that can perform fascia suturing without pulling out the puncture outfit channel, and that can avoid the risk of secondary injury to the patient's wound.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that the switching of the abdominal wall puncture outfit channel and the fascia suture instrument is needed in the laparoscopic surgery process in the prior art, and the risk of secondary injury to the wound of the patient is easily caused in the process of reinserting the puncture outfit channel into the closer, so as to provide a puncture suture device capable of carrying out fascia suture without pulling out the puncture outfit channel and capable of avoiding the risk of secondary injury to the wound of the patient, and a use method thereof.

In order to solve the above technical problems, the puncture suturing device provided by the present invention comprises:

the puncture sleeve is detachably and fixedly connected with any one of the fascia component and the choke valve component;

a fixing boss is arranged at one axial end of the puncture sleeve, and the fixing boss is arranged around the outer peripheral wall of the puncture sleeve; the fixing boss is axially provided with a plurality of openings;

one end, close to the puncture sleeve, of any one of the fascia component and the choke valve component is provided with a fixing groove, and the fixing groove is in socket connection with the fixing boss; a plurality of bulges corresponding to the openings are arranged on the inner side peripheral wall of the fixing groove; in the assembly process, the protrusions are in screwed clamping connection with the fixing bosses through the openings.

Optionally, a sealing ring is arranged between any one of the fascia component and the choke valve component and the puncture sleeve, so that self-locking is performed through elasticity of the sealing ring in the process of screwing and clamping the protrusion and the fixing boss.

Optionally, the fascia assembly includes:

the fascia main body is in screwed joint with the puncture sleeve; the fascia main body is provided with an installation cavity along the axial direction and is suitable for installing a connecting rod and a handle; two staggered needle grooves are formed in the fascia main body and are suitable for inserting fascia needles;

one axial end of the connecting rod is axially fixed with the handle, and the other axial end of the connecting rod is connected with the fascia wing; the fascia wings are arranged in pairs; the connecting rod is driven by the handle to axially move relative to the fascia main body so as to drive the fascia wings to switch between an unfolding state and a folding state.

Optionally, a thread retaining block is disposed on the fascia wing, and when the fascia wing is in the unfolded state, the fascia needle drives the suture thread to pierce the thread retaining block and then to be pulled out, so that the suture thread is separated from the fascia needle and is retained in the thread retaining block.

Optionally, a first connecting column is arranged at one end, close to the fascia wings, of the fascia main body along the axial direction, and a hinge hole hinged with the first connecting column is formed in the fascia wings; the connecting rod is provided with a second connecting column along the axial direction near one end of the fascia wing, the fascia wing is provided with a sliding groove corresponding to the second connecting column, and the second connecting column is arranged in the sliding groove in a sliding way so as to drive the fascia wing to switch between an unfolding state and a folding state by taking the first connecting column as a rotation axis.

Optionally, one or more self-locking grooves are formed in the handle, salient points corresponding to the self-locking grooves are arranged on the inner side wall of the mounting cavity, and the self-locking grooves and the salient points form a self-locking structure to keep the unfolding state or the folding state of the fascia wings.

Optionally, the self-locking groove comprises a sliding switching section axially arranged, and a first locking section and a second locking section at two axial ends of the sliding switching section, wherein the first locking section is positioned at one end of the sliding switching section, which is axially close to the fascia wing; when the bump is locked to the first locking section, the fascia wings remain in the deployed state; when the bump is locked to the second locking section, the fascia wings remain in a collapsed state.

Optionally, two oppositely arranged notches are formed on the side peripheral wall of the puncture cannula, and the notches are suitable for the fascia component to operate.

Optionally, the puncture suturing device further comprises a sheath cap assembly connected to one end of the choke valve assembly away from the puncture cannula;

the sheath cap assembly is provided with a positioning column, the choke valve assembly is provided with a positioning hole, and the positioning column is inserted into the positioning hole so as to orient the sheath cap assembly and the choke valve assembly circumferentially;

the sheath cap assembly is provided with a fixed buckling groove, the choke valve assembly is provided with a fixed buckle, and the fixed buckle is buckled with the fixed buckling groove so as to axially fix the sheath cap assembly and the choke valve assembly.

Optionally, a sealing boss is further disposed on the side, close to the choke valve assembly, of the sheath cap assembly, the choke valve assembly includes a choke valve body, and the sealing boss is adapted to press and seal the choke valve body in the axial fixing process of the sheath cap assembly and the choke valve assembly.

The application method of the puncture suturing device provided by the invention comprises the following steps:

s1, screwing the choke valve assembly and the puncture sleeve to be unable to rotate so as to perform self-locking through the elasticity of the sealing ring;

s2, puncturing is carried out at a designated position of the abdominal wall through a puncture sleeve;

s3, keeping the puncture sleeve at a designated position of the abdominal wall still, screwing the choke valve assembly out of the puncture sleeve, and screwing the fascia assembly and the puncture sleeve into a state that the fascia assembly and the puncture sleeve cannot rotate so as to perform self-locking through the elasticity of the sealing ring;

s4, suturing the puncture hole through the fascia component.

Optionally, step S4 includes:

rotating the handle along the first rotation direction until the handle cannot rotate, so that the convex points are separated from the second locking section and enter the sliding switching section, pulling the rotating handle outwards axially until the rotating handle cannot be pulled, rotating the rotating handle along the second rotation direction until the rotating handle cannot rotate, and enabling the convex points to enter the first locking section from the sliding switching section and form self-locking, so that fascia wings are switched from a folded state to an unfolded state;

the suture is driven by the fascia needle to pierce through the needle groove and then pulled out, so that the suture is separated from the fascia needle and is left in the thread retaining block;

and switching the fascia wings from the unfolding state to the folding state, and pulling out the puncture sleeve and the fascia components from the appointed position of the abdominal wall to complete knotting.

The technical scheme of the invention has the following advantages:

1. according to the puncture suturing device provided by the invention, one axial end of the puncture sleeve is provided with the fixing boss, and the fixing boss is axially provided with a plurality of openings; one end, close to the puncture sleeve, of any one of the fascia component and the choke valve component is provided with a fixing groove, and the inner side peripheral wall of the fixing groove is provided with a plurality of protrusions corresponding to the openings; in the assembly process, the bulge is in screwed joint with the fixing boss through the opening, so that the detachable fixed connection between the puncture sleeve and any one of the fascia component and the choke valve component is realized, fascia suture can be performed by an operator without pulling out the puncture sleeve after the puncture is completed at the appointed position of the abdominal wall, and the secondary injury risk of a wound of a patient is avoided.

2. According to the puncture suturing device provided by the invention, a sealing ring is arranged between any one of the fascia component and the choke valve component and the puncture sleeve, and the sealing ring is made of an elastic material; in the process of screwing and clamping the protrusion and the fixing boss, the fascia component or the choke valve component and the puncture sleeve jointly extrude the sealing ring to form a sealing structure so as to prevent puncture leakage; simultaneously, through setting up the sealing washer, when first target side with the butt of second target side rotates the fascial component is until the fascial component is relative puncture sleeve pipe can't rotate, thereby carries out the auto-lock through the elasticity of sealing washer.

3. According to the puncture suturing device provided by the invention, the positioning column is arranged on the sheath cap assembly, the positioning hole is arranged on the choke valve assembly, and the positioning column is matched with the positioning hole to realize circumferential orientation between the sheath cap assembly and the choke valve assembly; through setting up fixed catching groove on the sheath cap subassembly, choke valve subassembly is through setting up fixed buckle, and through fixed buckle with fixed catching groove lock realizes the sheath cap subassembly with axial fixity between the choke valve subassembly, thereby realize the sheath cap subassembly with releasable connection between the choke valve subassembly, and then make the sheath cap subassembly choke valve subassembly and can all separate between the puncture sleeve pipe, avoided choke valve's blocking, be convenient for sample better after the operation.

4. The application method of the puncture suturing device provided by the invention comprises the following steps: the choke valve assembly and the puncture sleeve are screwed into a state that the puncture sleeve cannot rotate, so that the puncture sleeve is self-locked through the elasticity of the sealing ring; puncturing at a designated position of the abdominal wall through a puncture cannula; the puncture sleeve is kept at a designated position of the abdominal wall, the choke valve assembly is screwed out of the puncture sleeve, and then the fascia assembly and the puncture sleeve are screwed into a state that the fascia assembly and the puncture sleeve cannot rotate, so that self-locking is performed through the elasticity of the sealing ring; suture puncture hole through fascia component, carry out laparoscopic surgery through the method, can carry out fascia and sew up, can avoid causing the secondary damage risk of patient's wound need not to pull out the puncture ware passageway.

5. The application method of the puncture suturing device provided by the invention, the step S4 comprises the following steps: rotating the handle along the first rotation direction until the handle cannot rotate, so that the convex points are separated from the second locking section and enter the sliding switching section, pulling the rotating handle outwards axially until the rotating handle cannot be pulled, rotating the rotating handle along the second rotation direction until the rotating handle cannot rotate, and enabling the convex points to enter the first locking section from the sliding switching section and form self-locking, so that fascia wings are switched from a folded state to an unfolded state; the suture is driven by the fascia needle to pierce through the needle groove and then pulled out, so that the suture is separated from the fascia needle and is left in the thread retaining block; the fascia wings are switched from the unfolding state to the folding state, the puncture sleeve and the fascia components are pulled out from the appointed position of the abdominal wall, and knotting is completed, so that the reliability of the fascia wings in the folding state or the unfolding state is ensured, and the suture safety is enhanced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is an overall block diagram of a puncture cannula and fascia assembly of a puncture suturing device of the present invention;

FIG. 2 is a schematic view showing the assembly of a fixing boss and a fixing groove of the puncture suturing device of the present invention;

FIG. 3 is a schematic diagram of the assembly of the puncture suturing device of the present invention by self-locking of the sealing ring;

FIG. 4 is a schematic top view of a fastening boss of the puncture suturing device of the present invention;

FIG. 5 is a schematic top view of a retaining groove of the lancing and suturing device of the present invention;

FIG. 6 is an overall block diagram of the fascia component of the puncture suturing apparatus of the present invention;

FIG. 7 is a cross-sectional view of the fascia body of the fascia assembly of the puncture suturing device of the present invention;

FIG. 8 is an overall block diagram of the links of the fascia assembly of the puncture suturing apparatus of the present invention;

FIG. 9 is an overall block diagram of the handle of the fascia assembly of the puncture suturing apparatus of the present invention;

FIG. 10 is a diagram showing the connection of the fascia needle of the fascia component of the puncture suturing device of the present invention to the suture thread;

fig. 11 is an enlarged view of P in fig. 10;

FIG. 12 is an overall block diagram of the fascia wings of the fascia assembly of the puncture suturing device of the present invention;

FIG. 13 is a schematic illustration of the connection of the links of the puncture suturing device of the present invention to the handle and the fascial wings;

FIG. 14 is an exploded view of the lancing sleeve and fascia assembly of the lancing and suturing device of the present invention;

FIG. 15 is an exploded view of the puncture cannula and choke valve assembly and sheath cap assembly of the puncture suturing device of the present invention;

FIG. 16 is a cross-sectional view of the choke valve assembly of the puncture suturing device of the present invention;

FIG. 17 is a top view of the choke valve assembly of the lancing and suturing device of the present invention;

FIG. 18 is a side view of the cap assembly of the puncture suturing device of the present invention.

Reference numerals illustrate:

10. a puncture cannula; 101. a fixing boss; 1011. a first target side; 102. a notch; 103. a notch; 11. a seal ring; 12. an air injection valve; 13. an air injection switch;

20. a fascia component; 201. a fixing groove; 202. a protrusion; 2021. a second target side; 21. a fascia main body; 211. a mounting cavity; 212. a needle groove; 213. a first connection post; 214. a bump; 22. a connecting rod; 221. a second connection post; 23. a handle; 230. a self-locking groove; 2301. a first locking section; 2302. a second locking section; 2303. a sliding switching section; 24. a fascia needle; 241. a wire clamping port; 25. fascia wings; 251. a hinge hole; 252. a sliding groove; 26. a line block is left; 27. a suture;

30. a choke valve assembly; 301. positioning holes; 302. a fixing buckle; 31. a choke valve body; 32. an air blocking valve upper cover; 33. a choke valve lower cover;

40. a sheath cap assembly; 401. positioning columns; 402. a fixed buckling groove; 403. sealing the boss; 41. sealing the upper cover; 42. a valve-securing upper cover; 43. a transparent valve; 44. self-adjusting sealing caps; 45. a valve-securing lower cover; 46. and sealing the lower cover.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

Example 1

Referring to fig. 1 to 18, the puncture suturing device according to the present embodiment comprises:

the puncture cannula 10 is detachably and fixedly connected with any one of the fascia assembly 20 and the choke valve assembly 30;

a fixing boss 101 is arranged at one axial end of the puncture cannula 10, and the fixing boss 101 is arranged around the outer peripheral wall of the puncture cannula 10; the fixing boss 101 is axially provided with a plurality of openings 102;

one end, close to the puncture cannula 10, of any one of the fascia assembly 20 and the choke valve assembly 30 is provided with a fixing groove 201, and the fixing groove 201 is in socket connection with the fixing boss 101; a plurality of protrusions 202 corresponding to the notches 102 are arranged on the inner peripheral wall of the fixing groove 201; during the assembly process, the protrusion 202 is screwed and clamped with the fixing boss 101 through the notch 102.

It should be noted that, the puncture cannula 10 of the puncture suturing device of the present invention may be adapted to any one of the choke valve assembly 30 and the fascia assembly 20, and when the puncture cannula 10 is detachably and fixedly connected to the choke valve assembly 30, an operator may perform a puncture operation at a designated position of the abdominal wall; when the puncture cannula 10 is detachably and fixedly connected with the fascia assembly 20, an operator can suture at a designated position of the abdominal wall, so that in the laparoscopic surgery process, after the puncture cannula 10 completes puncture at the designated position of the abdominal wall, the puncture cannula 10 is kept at the designated position of the abdominal wall, the choke valve assembly 30 is screwed out of the puncture cannula 10, and then the fascia assembly 20 is fixedly connected with the puncture cannula 10 and suture is performed, so that the operator can suture fascia without pulling out the puncture cannula 10, and the secondary injury risk of a wound of a patient is avoided.

It should be noted that, referring to fig. 2, a fixing boss 101 is disposed at an end of the puncture cannula 10 axially near the fascia component 20, the fixing boss 101 is circumferentially disposed on an outer circumferential wall of the puncture cannula 10, and the fixing boss 101 is radially protruded from the outer circumferential wall of the puncture cannula 10; the fixing boss 101 is axially provided with a plurality of openings 102; still referring to fig. 2, one end of either the fascia assembly 20 or the choke valve assembly 30, which is adjacent to the puncture cannula 10, is provided with a fixing groove 201 adapted for a socket connection with the fixing boss 101; a plurality of protrusions 202 corresponding to the notches 102 are arranged on the inner peripheral wall of the fixing groove 201; referring to fig. 3, a side surface of the fixing boss 101, which is axially far from the fascia assembly 20, is defined as a first target side surface 1011; defining the end surface of one side of the protrusion 202, which is far away from the puncture cannula 10 along the axial direction, as a second target side 2021, in the assembly process, the fixing boss 101 is inserted into the fixing groove 201, meanwhile, the protrusion 202 moves to one side of the fixing boss 101, which is near to the first target side 1011, along the axial direction through the opening 102, and the fascia assembly 20 is rotated until the first target side 1011 abuts against the second target side 2021, so that the protrusion 202 is in screwing and clamping connection with the fixing boss 101, and the detachable fixed connection between the fascia assembly 20 and the puncture cannula 10 is realized. The detachable and fixed connection between the choke valve assembly 30 and the puncture cannula 10 is the same as the above principle, and will not be described again here.

It should be noted that, referring to fig. 4 and fig. 5, in this embodiment, the openings 102 and the protrusions 202 are arranged in a one-to-one correspondence; the number of the protrusions 202 is three, and one of the three protrusions 202 is smaller than the other two protrusions to perform fool-proof treatment.

In this embodiment, a fixing boss 101 is disposed at one axial end of the puncture cannula 10, and a plurality of openings 102 are formed in the fixing boss 101 along the axial direction; one end, close to the puncture cannula 10, of any one of the fascia assembly 20 and the choke valve assembly 30 is provided with a fixing groove 201, and the inner side peripheral wall of the fixing groove 201 is provided with a plurality of protrusions 202 corresponding to the notches 102; in the assembly process, the protrusion 202 is screwed and clamped with the fixing boss 101 through the notch 102, so that the puncture cannula 10 is detachably and fixedly connected with any one of the fascia component 20 and the choke valve component 30, and the fascia suture can be performed without pulling out the puncture cannula 10 after the operator completes puncture at the designated position of the abdominal wall, thereby avoiding the risk of secondary injury causing the wound of the patient.

Specifically, a sealing ring 11 is disposed between any one of the fascia component 20 and the choke valve component 30 and the puncture sleeve 10, so as to perform self-locking by elastic force of the sealing ring 11 in the process of screwing and clamping the protrusion 202 and the fixing boss 101.

It should be noted that, referring to fig. 3, a sealing ring 11 is disposed between any one of the fascia assembly 20 and the choke valve assembly 30 and the puncture cannula 10, the sealing ring 11 may be fixedly disposed in a preset sealing groove (not shown in the drawings) of the puncture cannula 10 to avoid the sealing ring 11 from falling when the fascia assembly 20 is replaced, wherein the sealing ring 11 is made of an elastic material, and the sealing ring 11 may be an O-ring; during the screwing and clamping process of the protrusion 202 and the fixing boss 101, the fascia component 20 or the choke valve component 30 and the puncture sleeve 10 jointly squeeze the sealing ring 11 to form a sealing structure, so that puncture and air leakage are prevented; meanwhile, by providing the seal ring 11, when the first target side 1011 abuts against the second target side 2021, the fascia component 20 is rotated until the fascia component 20 cannot rotate relative to the puncture cannula 10, so that self-locking is performed by the elastic force of the seal ring 11.

Specifically, the fascia assembly 20 includes:

a fascia main body 21 which is screwed and clamped with the puncture cannula 10; the fascia main body 21 is provided with a mounting cavity 211 along the axial direction, and is suitable for mounting the connecting rod 22 and the handle 23; the fascia main body 21 is provided with two staggered needle grooves 212 which are suitable for inserting fascia needles 24;

one axial end of the connecting rod 22 is axially fixed with the handle 23, and the other axial end is connected with the fascia wing 25; the fascia wings 25 are arranged in pairs; the connecting rod 22 is driven by the handle 23 to move axially relative to the fascia main body 21, so as to drive the fascia wings 25 to switch between an unfolded state and a folded state.

Note that, referring to fig. 6-13, in this embodiment, the fascia assembly 20 includes a fascia main body 21, a connecting rod 22, a handle 23, a fascia needle 24, a fascia wing 25, and a retaining block 26. The fascia main body 21 is provided with the fixing groove 201 and the protrusion 202, and the fascia main body 21 is in screwed joint with the puncture cannula 10 through the protrusion 202; referring to fig. 7, the fascia main body 21 is provided with a mounting cavity 211 along the axial direction, adapted to mount the connecting rod 22 and the handle 23, and the fascia main body 21 is provided with two needle grooves 212 arranged in a staggered manner, adapted to penetrate the fascia needle 24; referring to fig. 13, one axial end of the connecting rod 22 is axially fixed to the handle 23, the handle 23 can rotate circumferentially relative to the connecting rod 22, and the other end of the connecting rod 22 is connected to the fascial wing 25; the fascia wings 25 are arranged in pairs; the connecting rod 22 is driven by the handle 23 to move axially relative to the fascia main body 21, so as to drive the fascia wings 25 to switch between an unfolded state and a folded state.

Specifically, the fascial wings 25 are provided with a thread retaining block 26, and when the fascial wings 25 are in the unfolded state, the fascial needle 24 drives the suture thread to pierce the thread retaining block 26 and then to be pulled out, so that the suture thread is separated from the fascial needle 24 and is retained in the thread retaining block 26.

It should be noted that, referring to fig. 6 and 10, a thread retaining block 26 is fixedly disposed on the fascia wing 25, and when the fascia wing 25 is in the unfolded state, the fascia needle 24 drives the suture thread 27 to pierce the thread retaining block 26 and then to be pulled out, so that the suture thread 27 is separated from the fascia needle 24 and is retained in the thread retaining block 26; referring to fig. 11, a thread clamping opening 241 is provided at the head end of the fascia needle 24, and the thread clamping opening 241 is adapted to clamp the suture thread 27 at the head end of the fascia needle 24, so that the fascia needle 24 drives the suture thread 27 to pierce the thread retaining block 26 via the needle slot 212, and when the fascia needle 24 is pulled out of the thread retaining block 26, the suture thread 27 is separated from the fascia needle 24 from the thread clamping opening 241 and retained in the thread retaining block 26, thereby facilitating the suturing operation of the operator.

Specifically, a first connecting post 213 is disposed at an end of the fascia main body 21, which is axially close to the fascia wing 25, and a hinge hole 251 is formed in the fascia wing 25 and hinged to the first connecting post 213; the second connecting column 221 is disposed at an end of the connecting rod 22, which is axially close to the fascial wing 25, the fascial wing 25 is provided with a sliding groove 252 corresponding to the second connecting column 221, and the second connecting column 221 is slidably disposed in the sliding groove 252, so as to drive the fascial wing 25 to switch between the unfolded state and the folded state with the first connecting column 213 as a rotation axis.

Note that, as shown in fig. 7, a first connecting post 213 is disposed at an end of the fascia main body 21, which is axially close to the fascia wing 25, and as shown in fig. 12, a hinge hole 251 is formed in the fascia wing 25 and hinged to the first connecting post 213; referring to fig. 8, a second connection post 221 is disposed at an end of the connecting rod 22, which is axially close to the fascia wing 25, and referring to fig. 12, a sliding groove 252 corresponding to the second connection post 221 is disposed on the fascia wing 25, and the second connection post 221 is slidably disposed in the sliding groove 252; referring to fig. 6 and 13, in the implementation process, the handle 23 drives the connecting rod 22 to move axially, so that the connecting rod 22 drives the fascia wing 25 to switch between the unfolded state and the folded state with the first connecting post 213 as a rotation axis, thereby facilitating the suturing operation of the operator.

Specifically, the handle 23 is provided with one or more self-locking grooves 230, the inner side wall of the mounting cavity 211 is provided with a bump 214 corresponding to the self-locking groove 230, and the self-locking groove 230 and the bump 214 form a self-locking structure to maintain the unfolded state or the folded state of the fascia wings 25.

It should be noted that, referring to fig. 13, the handle 23 is provided with one or more self-locking grooves 230, and in this embodiment, the bump 214 has a smaller size, so that the self-locking strength is lower, so that the handle 23 is provided with a plurality of self-locking grooves 230 to enhance the self-locking strength; the protruding points 214 are engaged with the self-locking grooves 230 to form a self-locking structure, so as to maintain the unfolded state or the folded state of the fascia wings 25.

Specifically, the self-locking slot 230 includes a sliding switching section 2303 axially disposed, and a first locking section 2301 and a second locking section 2302 at two axial ends thereof, where the first locking section 2301 is located at one end of the sliding switching section 2303 axially near the fascia wing 25; when the bump 214 is locked to the first locking section 2301, the fascia wings 25 remain in the deployed state; when the tab 214 is locked to the second locking segment 2302, the fascia wings 25 remain in the collapsed state.

It should be noted that, referring to fig. 9, the self-locking groove 230 includes a sliding switching section 2303 disposed along an axial direction, and a first locking section 2301 and a second locking section 2302 disposed at two axial ends thereof, where the first locking section 2301 is located at one end of the sliding switching section 2303 axially near the fascia wing 25; as shown in both fig. 7 and 13, during a specific operation, when the handle 23 is rotated by reverse rotation-pull-forward rotation such that the bump 214 is locked to the first locking section 2301, the fascia wings 25 are maintained in the unfolded state; when the knob 23 is rotated in the reverse rotation-push-forward direction again so that the bump 214 is locked to the second locking section 2302, the fascial wing 25 is maintained in the collapsed state, which is advantageous in ensuring the intraoperative stability of the fascial wing 25.

Specifically, two notches 103 are formed on the side peripheral wall of the puncture cannula 10, and the notches 103 are adapted to the operation of the fascia assembly 20.

Referring to fig. 1 and 6, two opposite notches 103 are formed on the side wall of the puncture cannula 10, and the notches 103 are suitable for the fascia component 20 to operate; in an implementation, the fascia wings 25 are deployed through the notches 103, and the fascia needle 24 is passed through the notches 103 by the needle slot 212 to pierce the stay wire block 26.

Specifically, the puncture suturing device further comprises a sheath cap assembly 40 connected to an end of the choke valve assembly 30 remote from the puncture cannula 10;

a positioning column 401 is arranged on the sheath cap assembly 40, a positioning hole 301 is arranged on the choke valve assembly 30, and the positioning column 401 is inserted into the positioning hole 301 to orient the sheath cap assembly 40 and the choke valve assembly 30 circumferentially;

the sheath cap assembly 40 is provided with a fixing buckle groove 402, the choke valve assembly 30 is provided with a fixing buckle 302, and the fixing buckle 302 is buckled with the fixing buckle groove 402, so that the sheath cap assembly 40 and the choke valve assembly 30 are axially fixed.

It should be noted that, referring to fig. 15, in the implementation process, the sheath cap assembly 40 includes a sealing upper cover 41, a valve fixing upper cover 42, a transparent valve 43, a self-adjusting sealing cap 44, a valve fixing lower cover 45 and a sealing lower cover 46, and the specific assembly relationship is not repeated here; the upper sealing cover 41 and the lower sealing cover 46 are connected by ultrasonic welding, so that the upper sealing cover 41, the upper valve fixing cover 42, the transparent valve 43, the self-adjusting sealing cap 44, the lower valve fixing cover 45 and the lower sealing cover 46 are connected to form the sheath cap assembly 40 as shown in fig. 18. Referring to fig. 15, the choke valve assembly 30 includes a choke valve body 31, a choke valve upper cover 32 and a choke valve lower cover 33, wherein the choke valve body 31 is disposed between the choke valve upper cover 32 and the choke valve lower cover 33, and the choke valve upper cover 32 and the choke valve lower cover 33 are connected by ultrasonic welding to form the choke valve assembly 30 shown in fig. 16. Still referring to fig. 15, an air injection valve 12 and an air injection switch 13 are further disposed on the puncture cannula 10, and the air injection valve 12 is welded to the puncture cannula 10 by ultrasonic waves.

Optionally, the positioning post 401 is disposed on the sealing lower cover 46, and the sealing lower cover 46 is located at one end of the sheath cap assembly 40 axially close to the choke valve assembly 30; the positioning hole 301 is formed in the choke valve upper cover 32, and the choke valve upper cover 32 is located at one end of the choke valve assembly 30 axially close to the sheath cap assembly 40.

Optionally, the fixing buckle groove 402 is disposed on the sealing upper cover 41, and the sealing upper cover 41 is located at one end of the sheath cap assembly 40 axially away from the choke valve assembly 30; the fixing buckle 302 is disposed on the choke valve upper cover 32 and/or the fixing buckle 302 and the choke valve upper cover 32 are integrally formed.

In this embodiment, a positioning column 401 is disposed on the sheath cap assembly 40, and a positioning hole 301 is disposed on the choke valve assembly 30, and the positioning column 401 cooperates with the positioning hole 301 to realize circumferential orientation between the sheath cap assembly 40 and the choke valve assembly 30; through setting up fixed catching groove 402 on the sheath cap subassembly 40, choke valve subassembly 30 is through setting up fixed buckle 302, and through fixed buckle 302 with fixed catching groove 402 lock is realized sheath cap subassembly 40 with axial fixity between the choke valve subassembly 30, thereby realize sheath cap subassembly 40 with releasable connection between the choke valve subassembly 30, and then make sheath cap subassembly 40 choke valve subassembly 30 and can all separate between the puncture sleeve pipe 10, avoided the blocking of choke valve, be convenient for the postoperative sample better.

Specifically, a sealing boss 403 is further disposed on the side of the sheath cap assembly 40 near the choke valve assembly 30, the choke valve assembly 30 includes a choke valve body 31, and the sealing boss 403 is adapted to press and seal the choke valve body 31 during the axial fixing process of the sheath cap assembly 40 and the choke valve assembly 30.

It should be noted that, as shown in fig. 18, a sealing boss 403 is further disposed on a side of the sheath cap assembly 40, which is close to the choke valve assembly 30, and the sealing boss 403 presses the choke valve body 31 to form a sealing effect during the axial fixing process of the sheath cap assembly 40 and the choke valve assembly 30, so as to avoid gas leaking from the connecting seam between the sheath cap assembly 40 and the choke valve assembly 30.

Example two

The application method of the puncture suturing device provided by the embodiment comprises the following steps:

s1, screwing the choke valve assembly 30 and the puncture sleeve 10 to be unable to rotate so as to perform self-locking through the elasticity of the sealing ring 11;

s2, puncturing is carried out at a designated position of the abdominal wall through the puncture sleeve 10;

s3, keeping the puncture cannula 10 at a designated position of the abdominal wall, firstly screwing the choke valve assembly 30 out of the puncture cannula 10, and then screwing the fascia assembly 20 and the puncture cannula 10 to be unable to rotate so as to perform self-locking through the elasticity of the sealing ring 11;

s4, suturing the puncture hole through the fascia component 20.

In this embodiment, the method for using the puncture suturing device includes: the choke valve assembly 30 and the puncture sleeve 10 are screwed to be unable to rotate so as to perform self-locking through the elastic force of the sealing ring 11; puncturing is performed at a designated position of the abdominal wall through the puncture cannula 10; the puncture cannula 10 is kept at a designated position of the abdominal wall, the choke valve assembly 30 is screwed out of the puncture cannula 10, and then the fascia assembly 20 and the puncture cannula 10 are screwed into a state that the fascia assembly and the puncture cannula 10 cannot rotate, so that self-locking is performed through the elasticity of the sealing ring 11; the puncture hole is sutured through the fascia assembly 20, and the laparoscopic surgery is performed by the method, so that fascia suturing can be performed without pulling out a puncture outfit channel, and secondary damage risk of a wound of a patient can be avoided.

Specifically, step S4 includes:

rotating the handle 23 in the first rotation direction until the handle cannot rotate, so that the protruding point 214 is separated from the second locking section 2302 and enters the sliding switching section 2303, and pulling the handle 23 outwards in the axial direction until the handle cannot be pulled, rotating the handle in the second rotation direction until the handle cannot rotate, so that the protruding point 214 enters the first locking section 2301 from the sliding switching section 2303 and forms self-locking, and the fascia wing 25 is switched from the folded state to the unfolded state;

the suture is driven by the fascia needle 24 to pierce the stay wire block 26 through the needle groove 212 and then pulled out, so that the suture is separated from the fascia needle 24 and stays in the stay wire block 26;

the fascia wings 25 are switched from the unfolded state to the folded state, and the puncture cannula 10 and the fascia assembly 20 are pulled out from the appointed position of the abdominal wall, so that knotting is completed.

It should be noted that, the first rotation direction refers to the direction indicated by R1 in fig. 1, and the second rotation direction refers to the direction indicated by R2 in fig. 1.

In this embodiment, the step S4 includes: rotating the handle 23 in the first rotation direction until the handle cannot rotate, so that the protruding point 214 is separated from the second locking section 2302 and enters the sliding switching section 2303, and pulling the handle 23 outwards in the axial direction until the handle cannot be pulled, rotating the handle in the second rotation direction until the handle cannot rotate, so that the protruding point 214 enters the first locking section 2301 from the sliding switching section 2303 and forms self-locking, and the fascia wing 25 is switched from the folded state to the unfolded state; the suture is driven by the fascia needle 24 to pierce the stay wire block 26 through the needle groove 212 and then pulled out, so that the suture is separated from the fascia needle 24 and stays in the stay wire block 26; the fascia wings 25 are switched from the unfolded state to the folded state, the puncture sleeve 10 and the fascia assembly 20 are pulled out from the appointed position of the abdominal wall, and knotting is completed, so that the reliability of the fascia wings 25 in the folded state or the unfolded state is ensured, and the suture safety is enhanced.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims (12)

1. A puncture suturing device, comprising:

the puncture sleeve (10) is detachably and fixedly connected with any one of the fascia component (20) and the choke valve component (30);

a fixing boss (101) is arranged at one axial end of the puncture sleeve (10), and the fixing boss (101) is arranged around the outer peripheral wall of the puncture sleeve (10); the fixing boss (101) is provided with a plurality of openings (102) along the axial direction;

one end, close to the puncture sleeve (10), of any one of the fascia component (20) and the choke valve component (30) is provided with a fixing groove (201), and the fixing groove (201) is in socket connection with the fixing boss (101); a plurality of bulges (202) corresponding to the notches (102) are arranged on the inner peripheral wall of the fixing groove (201); in the assembly process, the protrusion (202) is in screwing and clamping connection with the fixing boss (101) through the notch (102).

2. The puncture suturing device according to claim 1, wherein a sealing ring (11) is arranged between any one of the fascia assembly (20) and the choke valve assembly (30) and the puncture cannula (10) so as to perform self-locking through the elastic force of the sealing ring (11) in the process of screwing and clamping the protrusion (202) with the fixing boss (101).

3. The puncture suturing device according to claim 1, wherein the fascia assembly (20) comprises:

a fascia main body (21) which is in screwing and clamping connection with the puncture sleeve (10); the fascia main body (21) is provided with an installing cavity (211) along the axial direction and is suitable for installing a connecting rod (22) and a handle (23); two staggered needle grooves (212) are formed in the fascia main body (21), and are suitable for penetrating fascia needles (24);

one axial end of the connecting rod (22) is axially fixed with the handle (23), and the other axial end of the connecting rod is connected with the fascia wing (25); the fascia wings (25) are arranged in pairs; the connecting rod (22) is driven by the handle (23) to axially move relative to the fascia main body (21) so as to drive the fascia wings (25) to switch between an unfolded state and a folded state.

4. A puncture suturing device according to claim 3, wherein a thread retaining block (26) is provided on the fascial wing (25), and when the fascial wing (25) is in the unfolded state, the fascial needle (24) drives the suture thread to puncture the thread retaining block (26) and then to be pulled out, so that the suture thread is separated from the fascial needle (24) and is retained in the thread retaining block (26).

5. The puncture and suturing device according to claim 3, wherein,

a first connecting column (213) is arranged at one end, which is axially close to the fascia main body (21), of the fascia wing (25), and a hinge hole (251) hinged with the first connecting column (213) is formed in the fascia wing (25);

the connecting rod (22) is provided with a second connecting column (221) along the axial direction, which is close to one end of the fascia wing (25), a sliding groove (252) corresponding to the second connecting column (221) is formed in the fascia wing (25), and the second connecting column (221) is arranged in the sliding groove (252) in a sliding manner so as to drive the fascia wing (25) to switch between an unfolding state and a folding state by taking the first connecting column (213) as a rotation axis.

6. A puncture suturing device according to claim 3, wherein the handle (23) is provided with one or more self-locking grooves (230), the inner side wall of the mounting cavity (211) is provided with protruding points (214) corresponding to the self-locking grooves (230), and the self-locking grooves (230) and the protruding points (214) form a self-locking structure to maintain the unfolded state or the folded state of the fascia wings (25).

7. The puncture suturing device according to claim 6, wherein the self-locking slot (230) comprises a sliding switching section (2303) arranged in the axial direction and a first locking section (2301) and a second locking section (2302) at both axial ends thereof, the first locking section (2301) being located at one end of the sliding switching section (2303) axially close to the fascia wing (25); when the bump (214) is locked to the first locking section (2301), the fascia wing (25) remains in the deployed state; when the bump (214) is locked to the second locking section (2302), the fascia wings (25) remain in a collapsed state.

8. Puncture and suturing device according to any of claims 1-7, characterized in that the lateral peripheral wall of the puncture cannula (10) is provided with two oppositely arranged notches (103), which notches (103) are adapted for the operation of the fascia assembly (20).

9. The puncture suturing device according to any one of claims 1-7, further comprising a sheath cap assembly (40) connected to an end of the choke valve assembly (30) remote from the puncture cannula (10);

a positioning column (401) is arranged on the sheath cap assembly (40), a positioning hole (301) is arranged on the choke valve assembly (30), and the positioning column (401) is inserted into the positioning hole (301) so as to orient the sheath cap assembly (40) and the choke valve assembly (30) circumferentially;

the sheath cap assembly (40) is provided with a fixed buckling groove (402), the choke valve assembly (30) is provided with a fixed buckle (302), and the fixed buckle (302) is buckled with the fixed buckling groove (402) so as to axially fix the sheath cap assembly (40) and the choke valve assembly (30).

10. The puncture and suturing device according to claim 9, wherein a sealing boss (403) is further arranged on the side of the sheath cap assembly (40) close to the choke valve assembly (30), the choke valve assembly (30) comprises a choke valve body (31), and the sealing boss (403) is adapted to press-seal the choke valve body (31) during axial fixation of the sheath cap assembly (40) and the choke valve assembly (30).

11. A method of using a puncture suturing device, comprising the steps of:

s1, screwing the choke valve assembly (30) and the puncture sleeve (10) to be unable to rotate so as to perform self-locking through the elasticity of the sealing ring (11);

s2, puncturing is carried out at a designated position of the abdominal wall through a puncture sleeve (10);

s3, keeping the puncture sleeve (10) at a designated position of the abdominal wall, screwing the choke valve assembly (30) out of the puncture sleeve (10), and screwing the fascia assembly (20) and the puncture sleeve (10) to be unable to rotate so as to perform self-locking through the elasticity of the sealing ring (11);

s4, suturing the puncture hole through the fascia component (20).

12. The method of using a puncture suturing device as set forth in claim 10, wherein the step S4 comprises:

rotating the handle (23) along the first rotation direction until the handle cannot rotate, so that the convex point (214) is separated from the second locking section (2302) and enters the sliding switching section (2303), pulling the rotating handle (23) outwards along the axial direction until the handle cannot be pulled, rotating the handle along the second rotation direction until the handle cannot rotate, and enabling the convex point (214) to enter the first locking section (2301) from the sliding switching section (2303) and form self-locking, so that the fascia wings (25) are switched from a folded state to an unfolded state;

the suture is driven by the fascia needle (24) to puncture a stay wire block (26) through a needle groove (212) and then pulled out, so that the suture is separated from the fascia needle (24) and is left in the stay wire block (26);

the fascia wings (25) are switched from the unfolded state to the folded state, and the puncture sleeve (10) and the fascia component (20) are pulled out from the appointed position of the abdominal wall, so that knotting is completed.

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