CN112641494A

CN112641494A - Puncture outfit for cardiothoracic surgery

Info

Publication number: CN112641494A
Application number: CN202110028557.6A
Authority: CN
Inventors: 陈淑花
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-04-13

Abstract

The invention discloses a puncture outfit for cardiothoracic surgery, which structurally comprises a puncture needle, an anti-skid thread, an air injection valve, a puncture cannula, a puncture cone, a sealing cap, a sleeve and a positioning device.

Description

Puncture outfit for cardiothoracic surgery

Technical Field

The invention relates to the field of medical machinery, in particular to a puncture outfit for cardiothoracic surgery.

Background

Cardiothoracic surgery has contained the disease of heart surgery and general chest surgery, among the cardiothoracic surgery, can use the puncture technique, the puncture is to pierce the pjncture needle into the coelom and extracts the secretion and do the chemical examination, inject gas or contrast medium into the coelom and do the contrast examination, therefore cardiothoracic surgery piercing depth is comparatively common in the medical treatment, restrict the location through the position of locating element to the puncture ware, guarantee that the hard wound can be accurate and extract the hydrops to patient cardiothoracic, when puncturing the patient, need the place of improvement:

when puncturing the patient, the doctor inserts puncture sleeve pipe in skin incision position, because the puncture awl is the cover at puncture sleeve intraduct, the doctor needs to press the puncture sleeve pipe on one hand, extract the puncture awl on the other hand, in-process at extracting the puncture awl, the puncture sleeve pipe can be along with the upward aversion of puncture awl under the effect of puncture awl, make and to produce certain clearance between puncture sleeve pipe and the incision, make outside air can flow into in the patient's body through the incision, patient's misery has been increased, and when extracting the puncture awl, the puncture sleeve pipe can produce certain shake because of the pulling force, lead to the puncture sleeve pipe to appear slightly rocking in the patient is internal, injure patient's viscera easily, cause secondary wound in the patient, reduce the result of use of puncture ware.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a puncture outfit for cardiothoracic surgery.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a cardiothoracic surgery uses puncture ware, its structure includes pjncture needle, anti-skidding screw thread, gas injection valve, puncture sleeve pipe, puncture awl, sealed cap, sleeve, positioner, pjncture needle one end is connected with the puncture awl, and the other end alternates on the puncture sleeve pipe, be equipped with sealed cap between sleeve and the puncture awl, the one end that sealed cap was kept away from to the sleeve is connected with the puncture sleeve pipe, be equipped with anti-skidding screw thread on the puncture sleeve pipe, puncture sleeve pipe bottom is equipped with the positioner who registrates with it, the puncture sleeve pipe is equipped with the gas injection valve that is linked together with it towards one side of positioner.

As a further improvement of the invention, the positioning device comprises a shell, an extrusion assembly, a positioning piece and a chuck, wherein the positioning piece is arranged on each of two sides of the shell, the chuck buckled with the shell is arranged in the middle of the shell, the chuck is fixedly connected with the extrusion assembly, and the shell is sleeved with the puncture cannula.

As a further improvement of the invention, the extrusion assembly comprises four pushing and pressing pieces, a guide pipe, a sealing protection plate, a connecting sleeve and a cavity, wherein the four pushing and pressing pieces are annularly arranged on the cavity at equal intervals, the pushing and pressing pieces are communicated with the connecting sleeve through the guide pipe, one end of the connecting sleeve, far away from the guide pipe, is provided with the sealing protection plate attached to the connecting sleeve, and one end of the pushing and pressing piece, far away from the guide pipe, is connected with the chuck.

The pushing and pressing piece comprises a frame body, a pressing block, an elastic moving plate, an opening and closing pulling block and a blocking piece, wherein the pressing block is installed on the frame body, one end, far away from the frame body, of the pressing block is connected with the elastic moving plate, the elastic moving plate is fixedly connected to the top of the opening and closing pulling block, the blocking piece buckled with the opening and closing pulling block is arranged inside the opening and closing pulling block, the frame body is installed on a cavity, the top of the frame body is connected with a chuck, two ends, far away from the elastic moving plate, of the opening and closing pulling block are connected to a sealing protection plate, and the blocking piece is communicated with a connecting sleeve through a.

As a further improvement of the invention, the blocking piece comprises a connecting plate, two blocking pieces, two triangular pulling plates and two leading-out pieces, wherein one end of the connecting plate is connected to the triangular pulling plates, the other end of the connecting plate is connected to the blocking pieces, the two leading-out pieces are respectively provided with the blocking pieces which are attached to the two leading-out pieces, the blocking pieces are connected with the triangular pulling plates, one end of each leading-out piece is buckled with the opening-closing pulling block, and the other end of each leading-out piece is communicated with the connecting sleeve through a guide pipe.

As a further improvement of the invention, the leading-out part comprises two movable arc plates, a leading-out opening, a gas outlet connecting disc, elastic pressing pads and a leading interface, wherein the two movable arc plates are symmetrically arranged on two sides of the leading-out opening, the two movable arc plates are connected through the gas outlet connecting disc, the elastic pressing pads are arranged on two sides of the bottom of the gas outlet connecting disc, the elastic pressing pads are connected on two sides of the leading interface, the movable arc plates are connected with blocking pieces, the leading-out opening is connected with a tensioning block, and the leading interface is communicated with the connecting sleeve through a guide pipe.

As a further improvement of the invention, the positioning piece comprises two patches, a clamping pull plate, two sucking discs, a shell and limiting blocks, wherein the two patches are arranged on two sides of the shell, the shell is internally provided with the four sucking discs, the four sucking discs are connected with the four limiting blocks in an equidistant annular mode, the four limiting blocks are connected through the clamping pull plate, and the shell is fixed on the shell.

As a further improvement of the invention, the fastening disc comprises a reset block, a resisting sheet, supporting plates, a push rod, a fastening sheet and a movable pressing piece, wherein two supporting plates are arranged in the reset block and connected through the resisting sheet, the bottom of the reset block is provided with the push rod, one end of the push rod, which is far away from the reset block, is connected with the movable pressing piece, the movable pressing piece is fixedly connected with the fastening sheet, the fastening sheet is connected with a limiting block, and the fastening sheet penetrates through the shell.

As a further improvement of the invention, the movable pressing piece comprises a connecting plate, a gear, two force guide pressing plates, a pull belt and racks, wherein the two force guide pressing plates are respectively connected with the connecting plate and the tensioning piece, the two force guide pressing plates are connected through the pull belt, the racks inserted into the two force guide pressing plates are arranged on the inner walls of the two force guide pressing plates, the two racks are matched with the gear, a push rod is arranged in the middle of the top of the connecting plate, and the force guide pressing plates are fixedly connected to the tensioning piece.

Advantageous effects

The invention relates to a puncture outfit for cardiothoracic surgery, which has the following beneficial effects:

1. according to the invention, through the combination of the anti-skid thread and the puncture cannula, a doctor punctures the puncture cannula in a patient body, the puncture cannula is blocked by a fat layer and the like in the patient body in the puncturing process, the doctor needs to rotate the rotary puncture cannula appropriately, the anti-skid thread is in a spiral structure, and the anti-skid thread can be matched with the puncture cannula to move downwards for puncturing, so that the resistance of the puncture cannula in the puncturing process is effectively reduced, and the puncturing efficiency is improved.

2. According to the invention, through the combined arrangement of the movable arc plates, the air outlet receiving disc and the elastic pressing pad, the air of the sealing protection plate flows onto the air outlet receiving disc through the guide interface, the air outlet receiving disc is pressed by the movable arc plates to be sunken downwards, so that the area of the air outlet receiving disc is reduced, the two movable arc plates mutually form a structure with a large upper part and a small lower part, the air can be expanded and dispersed outwards after being led out, and the air is not easy to flow back inwards after being led out, so that the sealing protection plate can effectively block the air outside the notch.

3. According to the invention, through the combined arrangement of the clamping pull plate, the suction disc and the limiting block, the four suction discs are tightly attached to the skin of a patient, the positions of the four suction discs are limited through the limiting block, the puncture sleeve can move downwards under stress after the puncture cone is pulled out, the pulling force applied to the puncture sleeve is effectively absorbed through the limiting block, and the position of the limiting block is fixed through the clamping pull plate, so that the limiting block can limit the positions of the suction discs, the phenomenon that the suction discs are displaced along with the puncture sleeve after the suction discs are subjected to the pulling force is prevented, and the positions of the puncture sleeve are effectively positioned.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a puncture outfit for cardiothoracic surgery according to the present invention;

fig. 2 is a schematic top plan view of the positioning device of the present invention.

FIG. 3 is a schematic view of the internal structure of the extrusion assembly of the present invention.

Fig. 4 is an enlarged structural diagram of a in fig. 3.

FIG. 5 is a schematic cross-sectional view of the barrier of the present invention.

Fig. 6 is a side view of the leading-out member of the present invention.

Fig. 7 is a side view of the leading-out member of the present invention.

FIG. 8 is a schematic cross-sectional view of a press assembly of the present invention.

FIG. 9 is a side view of the chuck plate of the present invention.

Fig. 10 is an enlarged structural diagram of a first operating state B in fig. 9.

Fig. 11 is an enlarged structural diagram of a second working state B in fig. 9.

In the figure: the puncture needle comprises a puncture needle 1, an anti-skid thread 2, an air injection valve 3, a puncture cannula 4, a puncture cone 5, a sealing cap 6, a sleeve 7, a positioning device 8, a shell 81, a squeezing assembly 82, a positioning piece 83, a chuck 84, a pushing piece 821, a guide pipe 822, a sealing protection plate 823, a connecting sleeve 824, a cavity 825, a frame body 211, a pressing block 212, a springing plate 213, an opening and closing pull block 214, a blocking piece 215, a connecting plate C1, a baffle C2, a triangular pull plate C3, a leading-out piece C4, a movable arc plate C41, a leading-out hole C42, a gas outlet connecting plate C43, a springing pad C44, a leading-in hole C45, a patch 831, a clamping pull plate 832, a suction plate 833, a shell 834, a limiting block 835, a reset block 331, a resisting sheet 332, a supporting plate 333, a push rod 334, a suction plate, a moving pressing piece 336, a connecting plate 1, a gear D2, a guiding pressure plate D539.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example one

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a cardiothoracic surgery uses puncture ware, its structure includes pjncture needle 1, anti-skidding screw thread 2, gas injection valve 3, puncture sleeve pipe 4, puncture awl 5, sealed cap 6, sleeve 7,

positioner

8, 1 one end of pjncture needle is connected with puncture awl 5, and the other end alternates on puncture sleeve pipe 4, be equipped with sealed cap 6 between sleeve 7 and the puncture awl 5, the one end that sealed cap 6 was kept away from to sleeve 7 is connected with puncture sleeve pipe 4, be equipped with anti-skidding screw thread 2 on the puncture sleeve pipe 4, puncture sleeve pipe 4 bottom is equipped with positioner 8 that registrates with it mutually, puncture sleeve pipe 4 is equipped with gas injection valve 3 that is linked together towards one side of positioner 8.

Referring to fig. 2, the positioning device 8 includes a housing 81, a pressing assembly 82, a positioning member 83, and a chuck 84, the positioning member 83 is mounted on both sides of the housing 81, the chuck 84 is fastened to the housing 81, the chuck 84 is fixedly connected to the pressing assembly 82, and the housing 81 is fitted to the puncture cannula 4.

Referring to fig. 3, the pressing assembly 82 includes four pushing members 821, a guide pipe 822, a sealing guard plate 823, a sleeve 824, and a cavity 825, where the four pushing members 821 are annularly installed in the cavity 825 at equal intervals, the pushing members 821 are communicated with the sleeve 824 through the guide pipe 822, one end of the sleeve 824, which is far away from the guide pipe 822, is provided with the sealing guard plate 823 attached to the sleeve 822, and one end of the pushing member 821, which is far away from the guide pipe 822, is connected to the chuck 84.

The sealing guard plate 823 is used for being matched with the puncture cannula 4, when the puncture cannula 4 penetrates into a body of a patient, the sealing guard plate 823 contacts with an incision of the patient, the sealing guard plate 823 is in an irregular arc-shaped structure, and after being subjected to extrusion force of the puncture cannula 4, the sealing guard plate 823 is tightly attached to the incision of the patient, so that a gap between the incision and the puncture cannula 4 is reduced.

Referring to fig. 4, the pushing element 821 includes a frame 211, a pressing block 212, an elastic plate 213, a stretching block 214, and a blocking element 215, the pressing block 212 is mounted on the frame 211, one end of the pressing block 212, which is far away from the frame 211, is connected to the elastic plate 213, the elastic plate 213 is fixedly connected to the top of the stretching block 214, the blocking element 215 fastened to the stretching block 214 is disposed inside the stretching block 214, the frame 211 is mounted on a cavity 825, the top of the frame 211 is connected to a chuck 84, two ends of the stretching block 214, which are far away from the elastic plate 213, are connected to a sealing guard 823, and the blocking element 215 is communicated with a joint sleeve 824 through a conduit 822.

The elastic plate 213 is used for matching with the opening and closing pull block 214, the elastic plate 213 downwards extrudes the opening and closing pull block 214, the opening and closing pull block 214 is in a triangular structure, and the opening and closing pull block can be outwards opened under the pressure of the elastic plate 213, so that the internal area of the blocking member 215 is effectively enlarged.

Referring to fig. 5, the blocking member 215 includes a connecting plate C1, a blocking piece C2, a triangular pulling plate C3, and two guiding pieces C4, one end of the connecting plate C1 is connected to the triangular pulling plate C3, the other end is connected to the blocking piece C2, two guiding pieces C4 are provided, two sides of each of the two guiding pieces C4 are provided with a blocking piece C2 attached thereto, the blocking piece C2 is connected to the triangular pulling plate C3, one end of each of the guiding pieces C4 is fastened to the opening and closing pulling block 214, and the other end is connected to the connecting sleeve 824 through a guide pipe 822.

The connecting plate C1 is used for being matched with a triangular pulling plate C3, the leading-out part C4 can be opened towards two sides after being subjected to the opening force of the opening and closing pulling block 214, the connecting plate C1 is of a structure with two large ends and a small middle part, the connecting plate C1 can be effectively matched with the triangular pulling plate C3 to pull the leading-out part C4, and the leading-out part C4 is prevented from being stressed and dislocated.

Referring to fig. 6-7, the leading-out member C4 includes two movable arc plates C41, a leading-out port C42, an air outlet receiving plate C43, elastic pressing pads C44, and a leading-out port C45, the two movable arc plates C41 are symmetrically installed on two sides of the leading-out port C42, the two movable arc plates C41 are connected through the air outlet receiving plate C43, the elastic pressing pads C44 are respectively installed on two sides of the bottom of the air outlet receiving plate C43, the elastic pressing pads C44 are connected to two sides of the leading-out port C45, the movable arc plates C638 are connected to the blocking plate C2, the leading-out port C42 is connected to the tensioning block 214, and the leading-out port C45 is connected to the receiving sleeve 824 through the guide pipe 822.

The elastic pressing pad C44 is used for being matched with the air outlet connecting disc C43, the guiding piece C4 is extruded to expand outwards, the inner end of the elastic pressing pad C44 is of an arc-shaped structure, the elastic pressing pad C44 retracts inwards after being pressed to extrude the air outlet connecting disc C43, the air outlet connecting disc C43 is pressed to be sunken downwards, and air in the sealing protective plate 823 can be effectively guided out.

Example two

positioner

Referring to fig. 8, the positioning element 83 includes two patches 831, a clamping pulling plate 832, two tight-absorbing discs 833, a housing 834 and a limiting block 835, the two patches 831 are disposed on two sides of the housing 834, four tight-absorbing discs 833 are mounted inside the housing 834, the four tight-absorbing discs 833 are annularly connected with the four limiting blocks 835 at equal intervals, the four limiting blocks 835 are connected with each other through the clamping pulling plate 832, and the housing 834 is fixed on the housing 81.

The patch 831 is used for matching with the shell 834, the two patches 831 are attached to the skin of a patient in parallel, the patch 831 has certain viscosity, and the sucking disc 833 can be effectively assisted to fix the position of the puncture cannula 4.

Referring to fig. 9, the tightening plate 833 includes a reset block 331, a resisting piece 332, a supporting plate 333, a pushing rod 334, a tightening piece 335, and a moving pressing piece 336, two supporting plates 333 are disposed inside the reset block 331, the two supporting plates 333 are connected through the resisting piece 332, the pushing rod 334 is disposed at the bottom of the reset block 331, one end of the pushing rod 334 away from the reset block 331 is connected to the moving pressing piece 336, the moving pressing piece 336 is fixedly connected to the tightening piece 335, the tightening piece 335 is connected to a limiting block 835, and the tightening piece 335 penetrates through the housing 834.

The push rod 334 is used for matching with the suction piece 335, the suction piece 335 is attached to the position of the incision of the patient, the push rod 334 pushes the movable pressing piece 336, the movable pressing piece 336 transmits force to the suction piece 335, the suction piece 335 adopts a suction cup principle, and can be tightly sucked on the skin of the patient after being stressed, so that the puncture cannula 4 can be effectively positioned.

Referring to fig. 10-11, the movable pressing member 336 includes a connecting plate D1, a gear D2, two force guiding pressing plates D3, a pulling strip D4, and a rack D5, the force guiding pressing plate D3 has two pieces, the two force guiding pressing plates D3 are respectively connected to the connecting plate D1 and the tightening piece 335, the two force guiding pressing plates D3 are connected through the pulling strip D4, the inner walls of the two force guiding pressing plates D3 are respectively provided with a rack D5 inserted into the two pieces, the two racks D5 are matched with the gear D2, a push rod 334 is installed at the middle position of the top of the connecting plate D1, and the force guiding pressing plate D3 is fixedly connected to the tightening piece 335.

The drawstring D4 is used for drawing the force-guiding pressure plate D3, the drawstring D4 is made of elastic materials, the force-guiding pressure plate D3 can be quickly led out upwards under the condition of no stress, the force-guiding pressure plate D3 is drawn through the drawstring D4, and the force-guiding pressure plate D3 is effectively prevented from rebounding upwards to draw the incision of a patient.

The working principle of the above technical solution is explained as follows:

when the puncture awl is used, a doctor inserts the puncture cannula 4 into the incision position, adjusts the positioning device 8 after inserting to a certain position, and positions and clamps the position of the puncture cannula 4 through the positioning device 8, so that the puncture cannula 4 can not shift in the process of pulling out the puncture awl 5 by the doctor.

When a patient is punctured, a doctor inserts a puncture cannula into a skin incision position of the patient, after the puncture cannula extends to a certain position, the shell 81 is contacted with the skin of the patient, the doctor presses the pressing block 212, the pressing block 212 is stressed to push the elastic plate 213 inwards, the elastic plate 213 transmits force to the opening and closing pull block 214, the guiding part C4 is pulled by the opening and closing pull block 214 to be pulled outwards, the opening and closing pull block 214 is stressed to expand outwards to press the blocking part 215 downwards, the blocking part 215 is pressed to move downwards to press the connecting sleeve 824, the connecting sleeve 824 is pressed to press the sealing protection plate 823, the sealing protection plate 823 is pressed to be attached to the inner wall of the connecting sleeve 824, so that air in the sealing protection plate 823 is discharged onto the guide interface C45 through the guide pipe 822, the guide interface C45 transmits the air in the sealing protection plate 823 to the air outlet connecting disc C43, and the pressing pad C44 is pressed to be opened upwards, increase its inside area, can effectively derive the inside gaseous derivation of sealed backplate 823, it can inwards retract the cave in to go out flange C43 after the pressurized, make the difficult inside backward flow of gas after pouring out, can effectively be with the inside gaseous discharge of sealed backplate 823, make sealed backplate 823 can hug closely in patient's skin incision department, effectively reduce and can produce certain clearance between puncture sleeve pipe and the incision, can separate the air of outside, prevent that the outside air from flowing into in patient's the body.

In the process of puncturing, two patches 831 are attached to the skin of a patient, a shell 834 is attached to the parallel side edges of the incision of the patient tightly, a reset block 331 is pressed, a supporting plate 333 is pressed to contract inwards, the pressure applied to the reset block 331 is pushed downwards to a push rod 334 through a supporting plate 332, the push rod 334 is pressed to guide the force to a connecting plate D1, the connecting plate D1 is pressed to be transmitted to a pressure guide pressing plate D3 at the top, the pressure guide pressing plate D3 drives a rack D5 to be meshed with a gear D2 to rotate, the force can be effectively transmitted to a pressure guide pressing plate D3 at the bottom, the force can be transmitted to a suction piece 335 after the pressure guide pressing plate D3 at the bottom is pressed, the middle position of the suction piece 335 is pressed to be attached to the skin of the patient tightly, the internal gas pressure can be led out through two sides, so that the suction piece 335 can be attached to the skin of the patient tightly, after a doctor loosens the reset block 331, the two pressure guide pressing plates D4 can restrain the pressure guide pressing plate D3, prevent that guide pressure board D3 makes progress in the twinkling of an eye after not atress and kick-backs, effectively protect the patient incision, make the patient incision can not receive guide pressure board D3 pull and appear tearing, fix a position the puncture sleeve pipe through inhaling tight piece 335, make puncture awl 5 extract the back, puncture sleeve pipe 4 can not produce and shake the sensation of movement, effectively protect patient's viscera, improve the puncture effect, effectively extract patient's internal hydrops.

In conclusion, the novel puncture outfit for cardiothoracic surgery is formed by combining and arranging the puncture needle, the anti-skid thread, the air injection valve, the puncture cannula, the puncture cone, the sealing cap, the sleeve and the positioning device, the sealing protection plate is tightly attached to the skin incision of a patient, a certain gap between the puncture cannula and the incision is effectively reduced, external air can be blocked, the sucking sheets are parallelly adsorbed on two sides of the incision of the patient, the position of the puncture cannula is effectively positioned, the puncture cannula cannot generate shaking motion after the puncture cone is pulled out, the internal organs of the patient are effectively protected, and the puncture effect is improved.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a cardiothoracic surgery uses puncture ware, its structure includes pjncture needle (1), anti-skidding screw thread (2), gas injection valve (3), puncture sleeve pipe (4), puncture awl (5), sealing cap (6), sleeve (7), positioner (8), its characterized in that:

the puncture needle (1) is connected with a puncture cone (5) and a puncture sleeve (4), a sealing cap (6) is arranged between a sleeve (7) and the puncture cone (5), the sleeve (7) is connected with the puncture sleeve (4), an anti-skid thread (2) is arranged on the puncture sleeve (4), the puncture sleeve (4) is sleeved on a positioning device (8), and the puncture sleeve (4) is communicated with an air injection valve (3);

positioner (8) are including casing (81), extrusion subassembly (82), setting element (83), chuck (84), setting element (83) are all installed to casing (81) both sides, casing (81) and chuck (84) looks lock joint, chuck (84) and extrusion subassembly (82) fixed connection, casing (81) and puncture sleeve pipe (4) suit mutually.

2. The cardiothoracic surgical punch of claim 1, wherein: the extrusion assembly (82) comprises four pushing and pressing pieces (821), a guide pipe (822), a sealing protection plate (823), a connecting sleeve (824) and a cavity (825), the four pushing and pressing pieces (821) are installed on the cavity (825), the pushing and pressing pieces (821) are communicated with the connecting sleeve (824) through the guide pipe (822), the connecting sleeve (824) is attached to the sealing protection plate (823), and the pushing and pressing pieces (821) are connected with a chuck (84).

3. The cardiothoracic surgical puncture instrument of claim 2, wherein: the pushing and pressing piece (821) comprises a frame body (211), a pressing block (212), an elastic moving plate (213), an opening and closing pulling block (214) and a blocking piece (215), the pressing block (212) is installed on the frame body (211), the pressing block (212) is connected with the elastic moving plate (213), the elastic moving plate (213) is fixedly connected to the top of the opening and closing pulling block (214), the opening and closing pulling block (214) is buckled with the blocking piece (215), the frame body (211) is installed on a cavity (825), the top of the frame body (211) is connected with a chuck (84), the opening and closing pulling block (214) is connected to a sealing protection plate (823), and the blocking piece (215) is communicated with a connecting sleeve (824) through a guide pipe (822).

4. The cardiothoracic surgical punch of claim 3, wherein: the utility model discloses a keep apart from, including separation member (215) connection plate (C1), separation blade (C2), triangle tractive board (C3), derivation piece (C4), connection plate (C1) and triangle tractive board (C3), separation blade (C2) are connected, derivation piece (C4) and separation blade (C2) laminate mutually, separation blade (C2) and triangle tractive board (C3) are connected, derivation piece (C4) one end and opening and shutting pull piece (214) looks lock joint, the other end is linked together through pipe (822) and adapter sleeve (824).

5. The cardiothoracic surgical punch of claim 4, wherein: lead-out piece (C4) including activity arc board (C41), lead export (C42), the flange of giving vent to anger (C43), suppress pad (C44), lead interface (C45), activity arc board (C41) is installed on leading export (C42), suppress pad (C44) and connect on leading interface (C45), activity arc board (C41) is connected with separation blade (C2), it draws piece (214) with the opening and shutting to lead export (C42) and be connected, it is linked together through pipe (822) and adapter sleeve (824) to lead interface (C45).

6. The cardiothoracic surgical punch of claim 1, wherein: setting element (83) including paster (831), joint arm-tie (832), inhale tight dish (833), shell (834), stopper (835), paster (831) are equipped with two, and two paster (831) are established in shell (834) both sides, shell (834) internally mounted has and inhales tight dish (833), it is connected with stopper (835) to inhale tight dish (833), shell (834) are fixed on casing (81).