CN112773475A

CN112773475A - Puncture outfit

Info

Publication number: CN112773475A
Application number: CN202110168389.0A
Authority: CN
Inventors: 董高宏; 董雨欣
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-05-11

Abstract

The invention discloses a puncture outfit, aiming at providing a puncture outfit which has simple structure and convenient operation and can play a role of stanching damaged tissues, and the technical proposal is as follows: a puncture outfit comprises a puncture cannula, wherein a puncture core penetrates through the puncture cannula, one end of the puncture core is provided with a puncture part and extends out of the puncture cannula, one end of the puncture cannula close to the puncture part is provided with an extrusion part which can be unfolded outwards, the extrusion part comprises at least 2 blades, one end of each blade is movably connected with the puncture cannula, and the blades and the puncture core are connected through a connecting component; when the connecting assembly is in a first preset state, the blade is connected with the puncture core; when coupling assembling is in the second and predetermines the state, blade and puncture core separation, the blade expandes outwards, belongs to medical instrument technical field.

Description

Puncture outfit

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a puncture outfit.

Background

The puncture outfit is matched with a minimally invasive device, and provides an instrument channel for the abdominal cavity pelvic cavity minimally invasive surgery.

The invention discloses a laparoscope anti-falling hemostasis puncture outfit with a patent publication number of CN204581447U, which comprises a puncture cone and a puncture sleeve; the puncture cannula is composed of a puncture tube and a channel body provided with a supporting channel and is of an integrally formed structure; a flushing pipe and an air/liquid charging port are arranged on the outer side of the channel body with the supporting channel, and the flushing pipe is communicated with the supporting channel; a balloon is arranged on the periphery of the puncture tube; an inflation/liquid pipeline is arranged in the wall of the puncture cannula, one end of the inflation/liquid pipeline is communicated with the inflation/liquid port, and the other end of the inflation/liquid pipeline is communicated with the saccule.

In the above scheme of the laparoscope anti-drop hemostatic puncture outfit, after the puncture outfit is inserted into the abdominal cavity, the balloon is inflated by gas or liquid through the inflation/liquid port, so that the balloon is expanded, thereby playing a role in preventing the puncture outfit from shifting, and simultaneously playing a certain role in compression hemostasis.

The defects of the prior art exist in that the hemostasis for puncturing the damaged tissue is realized by the balloon inflation mode, the structure is complex, and the operation is complex because the balloon needs to be filled with gas or liquid during operation.

Therefore, the technical problems to be solved by the application are as follows: how to provide a puncture outfit which has simple structure and convenient operation and can play a role of stanching the injured tissues.

Disclosure of Invention

The invention mainly aims to provide a puncture outfit, and aims to provide a puncture outfit which has a simple structure and convenient operation and can play a role of stopping bleeding for damaged tissues.

According to a first aspect of the invention, a puncture outfit is provided, which comprises a puncture cannula, a puncture core passes through the puncture cannula, one end of the puncture core is provided with a puncture part and extends out of the puncture cannula, one end of the puncture cannula close to the puncture part is provided with a squeezing part which can be unfolded outwards, the squeezing part comprises at least 2 blades, one ends of the blades are movably connected with the puncture cannula, and the blades and the puncture core are connected through a connecting component;

when the connecting assembly is in a first preset state, the blade is connected with the puncture core;

when the connecting assembly is in a second preset state, the blades are separated from the puncture core, and the blades are unfolded outwards.

In a specific embodiment of the invention, the connecting assembly comprises a connecting piece and a connecting fitting piece, and the connecting piece and the connecting fitting piece form a buckle structure.

In a specific embodiment of the present invention, the connecting member is a positioning member, the connecting fitting is a fastening member, the connecting member is disposed on the blade, and the connecting fitting is disposed on the puncture core.

In a specific embodiment of the invention, a plurality of memory steel wires are connected between the blades and the puncture cannula;

when the connecting assembly is in a second preset state, the memory steel wire is in a memory state to enable the blades to be unfolded.

In a specific embodiment of the invention, after the blades are unfolded, the included angle between the blades and the puncture cannula is 90-120 degrees.

In a specific embodiment of the invention, the outer wall of the puncture cannula is provided with a fixed block which can move along the length direction of the puncture cannula and can be fixed, and when the puncture device is used, the fixed block is tightly propped against the outer wall of the abdominal cavity.

In a specific embodiment of the invention, the fixing block is a nut, and the outer wall of the puncture cannula is provided with threads matched with the nut.

In a specific embodiment of the invention, a through hole is arranged in the puncture cannula, the puncture core is matched with the through hole, and an air inlet interface communicated with the through hole is also arranged at one end of the puncture cannula far away from the puncture part;

a valve is arranged on the air inlet interface;

a sealing element is arranged in the through hole, an opening through which the puncture core can pass is formed in the sealing element, and the air inlet interface is positioned between the blade and the sealing element; when the puncture core is separated from the sealing element, the opening is in a tightly closed state, the air inlet interface and the through hole form a ventilation channel, and air is output from one end of the through hole, which is far away from the sealing element.

In a specific embodiment of the invention, the blades are 3, and the length of each blade is 10-40 mm;

when the connecting assembly is in a first preset state, the blades form a cylindrical structure.

One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects: in the invention, the extrusion part comprises at least 2 blades, one end of each blade is movably connected with the puncture cannula, and the blades and the puncture core are connected through a connecting component;

when the puncture outfit is not used, the connecting component is in a first preset state, and the blades are connected with the puncture core;

when the puncture outfit is used, the connecting component is in a first preset state, the puncture outfit penetrates through a cortex layer and is inserted into an abdominal cavity, and then the connecting component is converted into a second preset state, so that the blades are separated from the puncture core, the blades are unfolded outwards, and then the blades are tightly propped against the inner wall of the abdominal cavity to extrude damaged tissues, thereby playing the role of hemostasis;

meanwhile, the blades can be positioned after being unfolded, so that the puncture outfit is prevented from shifting in the use process, and the blades can also avoid blocking the sight;

after the blades are unfolded, the puncture core is pulled out of the puncture cannula, and the puncture cannula assists the operation.

Drawings

The invention is further described below with reference to the accompanying drawings and examples;

fig. 1 is a structural view of a connecting member according to a first embodiment of the present invention in a first predetermined state;

fig. 2 is a structural view of the connecting member of the first embodiment of the present invention in a second preset state;

FIG. 3 is a bottom view of the first embodiment of the present invention with the vanes deployed;

FIG. 4 is a first block diagram of a connecting assembly of the first embodiment of the present invention;

fig. 5 is a second structural view of the connecting member of the first embodiment of the present invention;

fig. 6 is a third structural view of the connecting member of the first embodiment of the present invention;

FIG. 7 is a cross-sectional, block diagram of the first embodiment of the present invention during engagement of the piercing cannula with the piercing core;

FIG. 8 is a cross-sectional structural view of the puncture cannula of the first embodiment of the present invention;

fig. 9 is a structural view of the puncture core pulling-out apparatus according to the first 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, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element 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.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, and may be, for example, a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other elements or indirectly connected through one or more other elements or in an interactive relationship between two elements.

The following disclosure provides many different embodiments, or examples, for implementing different aspects of the invention.

Referring to fig. 1 to 9, a puncture outfit comprises a puncture cannula 1, a puncture core 2 penetrates through the puncture cannula 1, one end of the puncture core 2 is provided with a puncture part 21 and extends out of the puncture cannula 1, one end of the puncture cannula 1 close to the puncture part 21 is provided with a squeezing part 3 capable of expanding outwards, the squeezing part 3 comprises at least 2 blades 31, one end of each blade 31 is movably connected with the puncture cannula 1, and the blades 31 and the puncture core 2 are connected through a connecting component 4;

when the connecting assembly 4 is in a first preset state, the blade 31 is connected with the puncture core 2;

when the connecting assembly 4 is in the second preset state, the blades 31 are separated from the puncture core 2, and the blades 31 are unfolded outwards.

In practical application, when the puncture outfit is not used, the connecting component 4 is in a first preset state, and the blade 31 is connected with the puncture core 2;

referring to fig. 1, 2 and 9, when the puncture outfit is in use, the connecting assembly 4 is in a first preset state, the puncture outfit is inserted into the abdominal cavity through the skin layer, and then the connecting assembly 4 is converted into a second preset state, the blades 31 and the puncture core 2 are separated, the blades 31 are unfolded outwards, and the blades 31 are tightly pressed on the inner wall of the abdominal cavity to press the damaged tissue, so that the hemostatic effect is achieved, the structure is simple, and the operation is convenient;

meanwhile, the blades 31 can realize the positioning of the puncture outfit after being unfolded, the puncture outfit is prevented from shifting in the using process, and the blades 31 can also avoid blocking the sight;

after the blades 31 are unfolded, the puncture core 2 is withdrawn from the puncture cannula 1, and the puncture cannula 1 assists the operation.

As a specific implementation of the embodiment, the puncturing part 21 is conical, and the puncturing part 21 is further provided with a plurality of puncturing rods which are uniformly arranged and used for assisting puncturing and extend from the large end of the puncturing part to the small end of the puncturing part;

the puncture part 21 can also be an inclined cutting surface, such as a puncture needle structure; or consists of 2 cutting surfaces, and the tail ends of the 2 cutting surfaces are mutually connected;

the structure of the puncturing part 21 is not limited in this embodiment.

In this embodiment, the connecting assembly 4 includes a connecting member 41 and a connecting fitting 42, and the connecting member 41 and the connecting fitting 42 form a snap structure.

As a specific implementation of this embodiment, referring to fig. 4 to 6, the connecting element 41 is a positioning element, the connecting fitting 42 is a fastening element, the connecting element 41 is disposed on the blade 31, and the connecting fitting 42 is disposed on the puncture core 2;

specifically, the puncture core 2 is provided with an annular groove 22 or a groove matched with the blade 31, and the connecting fitting piece 42 is arranged in the annular groove 22 or the groove;

referring to fig. 4, the connection fitting 42 may be a latch circumferentially disposed in the annular groove 22 or the recess, and a latch hole is formed in the latch; the connecting piece 41 is a hook-shaped positioning block, one side of the hook-shaped positioning block is arc-shaped and matched with the annular groove 22 or the groove, and the switching between the first preset state and the second preset state of the connecting component 4 is realized by rotating the puncture core 2;

when the connecting component 4 is in a first preset state, the hook-shaped positioning block penetrates through the clamping block from the clamping hole; when the first preset state is converted into the second preset state, the puncture core 2 is reversely rotated, so that the hook-shaped positioning block is separated from the fixture block, and the separation of the blade 31 and the puncture core 2 is realized;

in this embodiment, another structure of the connecting assembly 4 is provided, and referring to fig. 5, the connecting fitting 42 may also be a baffle plate covering the top of the annular groove 22 or the recess, and the first preset state and the second preset state of the connecting assembly 4 are switched by rotating the puncture core 2;

when the connecting component 4 is in a first preset state, one end of the hook-shaped positioning block extends to the lower part of the baffle plate, so that the blade 31 is connected with the puncture core 2; when the first preset state is converted into the second preset state, the puncture core 2 is reversely rotated, so that the hook-shaped positioning block is separated from the fixture block, and the separation of the blade 31 and the puncture core 2 is realized;

in this embodiment, another structure diagram of the connection assembly 4 is further provided, referring to fig. 6, the baffle may be further disposed at an upper portion of the annular groove 22 or the groove in the vertical direction, the hook-shaped positioning block is disposed vertically upward, a lower portion of the annular groove 22 or the groove may accommodate the entire hook-shaped positioning block, and the switching between the first preset state and the second preset state of the connection assembly 4 is realized by relatively moving the driving blade 31 and the puncture core 2 in the vertical direction;

when the connecting component 4 is in a first preset state, one end of the hook-shaped positioning block extends to the lower part of the baffle plate, so that the blade 31 is connected with the puncture core 2; when the first preset state is converted into the second preset state, the driving blade 31 and the puncture core 2 move relatively, so that the hook-shaped positioning block moves to the lower part of the annular groove 22 or the groove to be separated from the limit of the baffle, and the separation of the blade 31 and the puncture core 2 is realized;

the present embodiment does not limit the structure of the connecting assembly 4.

As a specific implementation of this embodiment, referring to fig. 1 to 2, a plurality of memory steel wires 5 are connected between the blade 31 and the puncture cannula 1, and after the blade 31 is separated from the puncture core 2, the memory steel wires 5 are no longer limited by the buckling structure, so as to recover the shape in the memory state;

when the connecting assembly 4 is in a second preset state, the memory steel wire 5 is in a memory state to enable the blade 31 to be unfolded;

specifically, one end of the memory steel wire 5 is fixedly connected to the puncture cannula 1, and the other end is arranged on the blade 31;

preferably, the blades 31 and the puncture cannula 1 are connected by 2 memory steel wires 5 to ensure the normal operation of the puncture cannula, although this embodiment does not exclude that the memory steel wires 5 are 1 or more.

Preferably, after the blades 31 are unfolded, the included angle between the blades 31 and the puncture cannula 1 is 90-120 degrees, so that the blades 31 can be tightly propped against the inner wall of the abdominal cavity after being unfolded.

Preferably, the outer wall of the puncture cannula 1 is provided with a fixed block 6 which can move along the length direction of the puncture cannula 1 and can be fixed, when the puncture device is used, the fixed block 6 is tightly propped against the outer wall of the abdominal cavity, and the fixed block and the blades 31 are matched to extrude damaged tissues together, so that the hemostatic effect is further improved.

Specifically, the fixing block 6 is a nut, and the outer wall of the puncture cannula 1 is provided with a thread 11 matched with the nut.

In this embodiment, a through hole 12 is formed in the puncture cannula 1, the puncture core 2 is matched with the through hole 12, and an air inlet port 13 communicated with the through hole 12 is further formed at one end of the puncture cannula 1 away from the puncture part 21;

a valve 14 is arranged on the air inlet interface 13;

one end of the valve 14 is rotatably connected in the air inlet interface 13, a first air passage is arranged at one end of the valve 14 extending into the air inlet interface 13, and a conducting hole communicated with the first air passage is arranged on the valve 14; the air inlet interface 13 is L-shaped, one end of the air inlet interface is an insertion end connected with an external air pipe, the other end of the air inlet interface is an air inlet end, and a second air passage extending from the insertion end to the air inlet end is arranged in the air inlet interface 13;

one end of the valve 14, provided with the first air passage, extends into the air inlet end, and the second air passage is switched on and off by rotating the valve 14.

When the valve 14 is in an open state, the via hole corresponds to the second air passage of the insertion end, so that the second air passage in the insertion end, the via hole, the first air passage and the second air passage in the air inlet end are mutually communicated;

when the valve 14 is in a closed state, the through hole is staggered with the second air passage at the insertion end, so that one end of the valve 14 blocks the second air passage.

A sealing element 15 is arranged in the through hole 12, an opening 151 through which the puncture core 2 can pass is arranged on the sealing element 15, and the air inlet interface 13 is positioned between the blade 31 and the sealing element 15; when the puncture core 2 is separated from the sealing member 15, the opening 151 is in a tightly closed state, the air inlet interface 13 forms a ventilation channel with the through hole 12, and the gas is output from one end of the through hole 12 far away from the sealing member 15;

specifically, with reference to fig. 7 and 8, the seal 15 is a flap structure of resilient material, the opening 151 being resiliently deformed when the piercing core 2 passes through the seal 15; when the puncture core 2 is separated from the sealing member 15, the sealing member 15 is restored to the original state, and the opening 151 is in a tightly closed state, so that gas cannot leak from the sealing member 15;

the air inlet port 13 may also be used for feeding liquid, which is not limited in this embodiment;

the side of the sealing element 15 far away from the air inlet port 13 is further provided with an elastic sheet 16 arranged in the through hole 12, the elastic sheet 16 is provided with a hole for the puncture core 2 to pass through, and the elastic sheet 16 and the hole can deform along with the insertion or extraction of the puncture core 2.

In the embodiment, the number of the blades 31 is 3, and the length of the blades 31 is 10mm to 40 mm;

when the connecting assembly 4 is in a first preset state, the blades 31 form a cylindrical structure;

specifically, when the blades 31 are formed into a cylindrical structure, the end surface of the cylindrical structure at the end away from the puncture cannula 1 may be a flat surface or an inclined surface;

in this embodiment, when the end surface of the cylindrical structure at the end away from the puncture cannula 1 is a plane, the length of the blade is preferably 20 mm;

when the end surface of the tubular structure far away from one end of the puncture cannula 1 is an inclined surface, the length of the blade is between 10mm and 40 mm.

As a specific implementation of this embodiment, an end surface of one end of the cylindrical structure away from the puncture cannula 1 is a plane, and a puncture guide inclined plane may be further disposed on the plane;

the end of the puncture cannula 1 far away from the blade 31 can be provided with a handle for convenient operation, which is not limited in this embodiment.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A puncture outfit comprises a puncture cannula (1), wherein a puncture core (2) penetrates through the puncture cannula (1), one end of the puncture core (2) is provided with a puncture part (21) and extends out of the puncture cannula (1), the puncture outfit is characterized in that one end of the puncture cannula (1) close to the puncture part (21) is provided with an extrusion part (3) which can be unfolded outwards, the extrusion part (3) comprises at least 2 blades (31), one end of each blade (31) is movably connected with the puncture cannula (1), and the blades (31) are connected with the puncture core (2) through a connecting component (4);

when the connecting component (4) is in a first preset state, the blade (31) is connected with the puncture core (2);

when the connecting assembly (4) is in a second preset state, the blades (31) are separated from the puncture core (2), and the blades (31) are unfolded outwards.

2. Puncture instrument according to claim 1, characterized in that the connection assembly (4) comprises a connection piece (41) and a connection fitting (42), the connection piece (41) and the connection fitting (42) forming a snap-fit construction.

3. A puncture instrument according to claim 2, wherein the connecting member (41) is a positioning member, the connecting fitting member (42) is a fastening member, the connecting member (41) is provided on the blade (31), and the connecting fitting member (42) is provided on the puncture core (2).

4. A puncture instrument according to claim 3, characterized in that a plurality of memory wires (5) are connected between the blade (31) and the puncture cannula (1);

when the connecting component (4) is in a second preset state, the memory steel wire (5) is in a memory state to enable the blade (31) to be unfolded.

5. A puncture device according to claim 4, characterized in that the angle between the blade (31) and the puncture cannula (1) is 90 ° to 120 ° after the blade (31) is deployed.

6. A puncture device according to claim 1, wherein the outer wall of the puncture cannula (1) is provided with a fixing block (6) which is movable along the length of the puncture cannula (1) and is fixable, and when the puncture device is in use, the fixing block (6) abuts against the outer wall of the abdominal cavity.

7. Puncture instrument according to claim 6, characterized in that the holding block (6) is a nut, and the outer wall of the puncture cannula (1) is provided with a thread (11) that cooperates with the nut.

8. The puncture instrument according to claim 1, wherein a through hole (12) is provided in the puncture cannula (1), the puncture core (2) is engaged with the through hole (12), and an air inlet port (13) communicated with the through hole (12) is provided at an end of the puncture cannula (1) away from the puncture portion (21);

a valve (14) is arranged on the air inlet interface (13);

a sealing element (15) is arranged in the through hole (12), an opening (151) through which the puncture core (2) can pass is formed in the sealing element (15), and the air inlet interface (13) is positioned between the blade (31) and the sealing element (15); when the puncture core (2) is separated from the sealing element (15), the opening (151) is in a tightly closed state, the air inlet interface (13) and the through hole (12) form a ventilation channel, and air is output from one end of the through hole (12) far away from the sealing element (15).

9. A puncture instrument according to any of claims 1 to 8, wherein the number of said blades (31) is 3, and the length of said blades (31) is 10mm to 40 mm;

when the connecting assembly (4) is in a first preset state, the blades (31) form a cylindrical structure.