CN112370126A - Self-negative pressure pericardium puncture device - Google Patents
Self-negative pressure pericardium puncture device Download PDFInfo
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- CN112370126A CN112370126A CN202011357146.3A CN202011357146A CN112370126A CN 112370126 A CN112370126 A CN 112370126A CN 202011357146 A CN202011357146 A CN 202011357146A CN 112370126 A CN112370126 A CN 112370126A
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- clamping
- fixedly connected
- negative pressure
- threaded rod
- threaded
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3405—Needle locating or guiding means using mechanical guide means
- A61B2017/3407—Needle locating or guiding means using mechanical guide means including a base for support on the body
Abstract
The invention discloses a self-negative pressure pericardial puncture device, and relates to the field of pericardial puncture. This from negative pressure pericardium piercing depth, the last fixed surface of equipment board is connected with the hollow tube, the bottom of hollow tube extends to the lower fixed surface of equipment board is connected with the translucent cover, the top threaded connection of hollow tube has the regulating pipe, the top fixedly connected with fixing base of regulating pipe, the last surface activity of fixing base is pegged graft and is had the pjncture needle, the side activity joint of fixing base has fixed subassembly, the tip of fixed subassembly extend to the inside of fixing base and with pjncture needle activity joint, the equal threaded connection in both sides of equipment board has the cassette, the last surface activity of cassette is pegged graft and is had the rack, the bottom of rack extends to the below fixedly connected with fixed jacket of cassette. This from negative pressure pericardium piercing depth, it is effective to carry on spacingly to the puncture position of puncture needle, avoids the puncture dynamics to hold not well, reduces the position deviation that the manual operation appears simultaneously or the hand shakes the injury that causes the patient.
Description
Technical Field
The invention relates to the technical field of pericardial puncture, in particular to a self-negative pressure pericardial puncture device.
Background
The pericardiocentesis is a diagnosis and treatment technology for directly puncturing the pericardial cavity by virtue of a puncture needle, the pericardiocentesis is required to be carried out under a sterile technology, local procaine anesthesia is applied, the puncture position cannot be too deep, so that the puncture of an atrium and a ventricle or the puncture of a coronary artery is avoided, a large amount of blood in the pericardial cavity is avoided, a pericardiocentesis patient can know the property of the pericardial effusion by testing the liquid in the pericardial cavity, and the cause of the pericarditis is found according to the property of the pericardial effusion.
When carrying out the pericardium puncture, need very carefully, observe the position of pjncture needle with the help of developing apparatus, avoid causing the injury to the heart simultaneously in order to guarantee that the pjncture needle can accurately enter into the inside of pericardial cavity, but carry out the pericardium puncture now and all be by medical personnel manual puncture, the condition that the hand trembled can appear in the in-process of manual operation, simultaneously because the diaphragm of package intracavity causes the separation, cause the hindrance to the puncture needle, make puncture position inaccurate, the puncture can not pierce through the pericardial cavity according to the undersize of pressure degree, the too big injury that causes the heart to the dynamics easily, consequently, need provide a self-vacuum pericardium puncture device in order to solve above-mentioned problem.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a self-negative pressure pericardial puncture device to solve the problems in the background technology.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a self-negative-pressure pericardial puncture device comprises an equipment plate, wherein a hollow tube is fixedly connected to the upper surface of the equipment plate, the bottom end of the hollow tube extends to the lower surface of the equipment plate and is fixedly connected with a transparent cover, a conical tube is fixedly connected to the inner top of the transparent cover, an adjusting tube is in threaded connection with the top end of the hollow tube, a connecting plate is fixedly connected to the top of the adjusting tube, a fixing seat is fixedly connected to the upper surface of the connecting plate, a puncture needle is movably inserted into the upper surface of the fixing seat, a fixing assembly is movably clamped on the side surface of the fixing seat, the end portion of the fixing assembly extends into the fixing seat and is movably clamped with the puncture needle, clamping seats are in threaded connection with the two sides of the equipment plate, a rack is movably inserted into the upper surface of each clamping seat, a fixing clamping sleeve is fixedly connected to the bottom end of the rack and below the, the end part of the clamping component extends into the clamping seat and is movably clamped with the rack;
the fixed subassembly includes first threaded rod, second threaded rod, threaded sleeve, slider, fixed strip, fixture block and regulation head, the fixed connection that first threaded rod and second threaded rod are relative, the quantity of regulation head is two sets of and respectively fixed connection at the one end surface that first threaded rod and second threaded rod carried on the back mutually, threaded sleeve's quantity is two sets of and respectively threaded connection at the surface of first threaded rod and second threaded rod, the quantity of slider is two sets of and respectively fixed connection at two sets of threaded sleeve's lower surface, the quantity of fixed strip is two sets of and respectively fixed connection at the one end side that two sets of threaded sleeve carried on the back mutually, the quantity of fixture block is two sets of and respectively fixed connection at the relative one side surface of two sets of fixed strips.
Preferably, the thread grooves on the outer surfaces of the first threaded rod and the second threaded rod have the same pitch and opposite directions, one ends of the first threaded rod and the second threaded rod, which are opposite to each other, are respectively rotatably connected to two sides of the fixing seat, a sliding groove is formed in the inner bottom of the fixing seat, and the sliding block is slidably connected to the inside of the sliding groove.
Preferably, the upper surface of the fixing seat is provided with a clamping groove, the top end of the puncture needle is fixedly connected with a clamping rod, the clamping rod is movably clamped inside the clamping groove, and the upper surface of the clamping rod is fixedly connected with a connecting pipe.
Preferably, the two ends of the clamping rod are provided with clamping holes, and the clamping block is movably clamped inside the clamping holes.
Preferably, the top end of the hollow tube is rotatably connected with a first threaded ring, and the bottom end of the adjusting tube is in threaded connection with the inside of the first threaded ring and extends downwards to the inside of the hollow tube.
Preferably, the lower surface of connecting plate just is located the equal fixedly connected with gag lever post in both sides of regulating tube, the upper surface of equipment board just is located the both sides of hollow tube and all is fixed the grafting has spacing sleeve, gag lever post activity is pegged graft in spacing telescopic inside.
Preferably, both ends of the equipment plate are rotatably connected with second threaded rings, the inner threads of the second threaded rings are connected with adjusting screw rods, one ends of the adjusting screw rods are movably inserted into the equipment plate, and the other ends of the adjusting screw rods are fixedly connected to the side faces of the clamping seats.
Preferably, the joint subassembly includes slide bar, circular baffle, spacing spring and three hornblocks, the surface at the slide bar is cup jointed in the activity of spacing spring, circular baffle fixed connection is in the one end of slide bar, three hornblocks fixed connection are at the other end of slide bar.
Preferably, the side face of the triangular block abuts against the outer side face of the clamping seat, one end of the limiting spring abuts against the inner side wall of the clamping seat, the other end of the limiting spring abuts against the side face of the triangular block, the triangular block is movably clamped with the rack, the upper surface of the triangular block is a horizontal plane, and the lower surface of the triangular block is an inclined plane.
The invention provides a self-negative pressure pericardial puncture device, which has the following beneficial effects:
1. this from negative pressure pericardium piercing depth, through rotating first screw ring, make the regulating pipe to the inside removal of hollow tube, the regulating pipe drives the fixing base downstream through the connecting plate this moment, the fixing base drives the pjncture needle and slowly moves down, and finally make the bottom of pjncture needle pierce through patient's skin, and insert the inside of patient's pericardial cavity from appointed operation position, the gag lever post of connecting plate both sides lower surface slides downwards at the inside of stop collar at this in-process, it is spacing to the removal of regulating pipe, the tip of toper pipe is spacing to the puncture position of puncture needle simultaneously, it is not good to avoid the puncture dynamics to hold, reduce the position deviation that the manual operation appears simultaneously or the hand trembles the injury that causes the patient.
2. This from negative pressure pericardium piercing depth, through pressing down the equipment board, the equipment board drives two sets of cassettes and extrudees with the inclined plane of triangle piece lower surface at the tooth's socket of rack surface this moment of the surface lapse of rack this moment, the triangle piece is extruded to one side removal far away from the rack this moment, make the slide bar to one section distance of cassette outside removal, spacing spring is compressed this moment, make the cassette can be at the surface lapse of rack, and finally make the operating position of ruling on translucent cover and the patient's thorax contact, stop pressing down the equipment board this moment, the upper surface of triangle piece prevents effectively for the horizontal plane that the equipment board is by jack-up simultaneously, the patient that conveniently adapts to different sizes when using uses simultaneously.
3. This from negative pressure pericardium piercing depth, through penetrating the pjncture needle from draw-in groove position to the control tube is inside, the kelly at pjncture needle top this moment enters into inside the draw-in groove, then rotate the regulation head of fixing base both sides, make first threaded rod and second threaded rod rotate in step, two sets of screw sleeve move towards the middle part at the surface of first threaded rod and second threaded rod respectively this moment, two sets of screw sleeve pass through the fixed strip and drive two sets of fixture blocks and remove to the middle part this moment, make two sets of fixture blocks enter into inside the draw-in groove, and finally make two sets of fixture block activity joints in the inside in card hole, make the kelly and be in the same place with fixing base activity joint this moment, accomplish the fixed of pjncture needle, avoid pjn.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention;
FIG. 2 is a schematic view of the bottom surface of the transparent cover according to the present invention;
FIG. 3 is a top view of the fixing base of the present invention;
fig. 4 is a schematic view of a puncture needle according to the present invention;
FIG. 5 is a schematic view of a fixing assembly according to the present invention;
FIG. 6 is a schematic view of an outer surface structure of the cartridge of the present invention;
FIG. 7 is a schematic view of a latch assembly of the present invention.
In the figure: 1. an equipment board; 2. a hollow tube; 3. a transparent cover; 4. an adjusting tube; 5. a card holder; 6. a rack; 7. a limiting rod; 8. a first threaded ring; 9. a connecting plate; 10. a fixed seat; 11. a tapered tube; 12. puncturing needle; 13. a fixing assembly; 131. a first threaded rod; 132. a second threaded rod; 133. a threaded sleeve; 134. a slider; 135. a fixing strip; 136. a clamping block; 137. an adjustment head; 14. a card slot; 15. a clamping rod; 16. a clamping hole; 17. a connecting pipe; 18. adjusting the screw rod; 19. a second threaded ring; 20. a clamping assembly; 201. a slide bar; 202. a circular baffle; 203. a limiting spring; 204. a triangular block; 21. a fixing jacket; 22. and a limiting sleeve.
Detailed Description
The embodiment of the invention provides a self-negative pressure pericardial puncture device, as shown in figures 1-7, which comprises an equipment plate 1, wherein the upper surface of the equipment plate 1 is fixedly connected with a hollow tube 2, the bottom end of the hollow tube 2 extends to the lower surface of the equipment plate 1 and is fixedly connected with a transparent cover 3, the inner top of the transparent cover 3 is fixedly connected with a conical tube 11, the top end of the hollow tube 2 is in threaded connection with an adjusting tube 4, the top of the adjusting tube 4 is fixedly connected with a connecting plate 9, the upper surface of the connecting plate 9 is fixedly connected with a fixed seat 10, the upper surface of the fixed seat 10 is movably inserted with a puncture needle 12, the side surface of the fixed seat 10 is movably clamped with a fixed assembly 13, the end part of the fixed assembly 13 extends to the inside of the fixed seat 10 and is movably clamped with the puncture needle 12, both sides of the equipment plate 1 are in threaded connection with clamping seats 5, the upper surface of the clamping seats 5 is, the side surface of the fixed clamping sleeve 21 is in threaded connection with a locking bolt, the side surface of the clamping seat 5 is movably clamped with a clamping component 20, and the end part of the clamping component 20 extends to the inside of the clamping seat 5 and is movably clamped with the rack 6.
More specifically, the fixing assembly 13 includes a first threaded rod 131, a second threaded rod 132, threaded sleeves 133, sliders 134, fixing strips 135, fixture blocks 136 and adjusting heads 137, the first threaded rod 131 and the second threaded rod 132 are fixedly connected to each other, the adjusting heads 137 are two sets and are respectively and fixedly connected to the outer surfaces of the opposite ends of the first threaded rod 131 and the second threaded rod 132, the threaded sleeves 133 are two sets and are respectively and fixedly connected to the outer surfaces of the first threaded rod 131 and the second threaded rod 132, the sliders 134 are two sets and are respectively and fixedly connected to the lower surfaces of the two sets of threaded sleeves 133, the fixing strips 135 are two sets and are respectively and fixedly connected to the side surfaces of the opposite ends of the two sets of threaded sleeves 133, the fixture blocks 136 are two sets and are respectively and fixedly connected to the outer surfaces of the two sets of fixing strips 135, the thread grooves of the outer surfaces of the first threaded rod 131 and the second threaded rod 132 have the same thread pitch and, first threaded rod 131 and the one end that second threaded rod 132 carried on the back mutually rotate respectively and connect the both sides at fixing base 10, the spout has been seted up to the interior bottom of fixing base 10, slider 134 sliding connection is in the inside of spout, draw-in groove 14 has been seted up to the upper surface of fixing base 10, the top fixedly connected with kelly 15 of pjncture needle 12, 15 activity joints of kelly are in the inside of draw-in groove 14, the last fixed surface of kelly 15 is connected with connecting pipe 17, card hole 16 has all been seted up at the both ends of kelly 15, fixture block 136 activity joint is in the inside of card hole.
Further, the top of hollow tube 2 is rotated and is connected with first screw ring 8, and the bottom threaded connection of regulating tube 4 is in the inside of first screw ring 8 and downwardly extending to the inside of hollow tube 2, and the lower surface of connecting plate 9 just is located the equal fixedly connected with gag lever post 7 in both sides of regulating tube 4, and the upper surface of equipment board 1 just is located the both sides of hollow tube 2 and all fixes pegging graft and has spacing sleeve 22, and the inside at spacing sleeve 22 is pegged graft in the activity of gag lever post 7.
Furthermore, both ends of the equipment plate 1 are rotatably connected with second threaded rings 19, the inner threads of the second threaded rings 19 are connected with adjusting screw rods 18, one end of each adjusting screw rod 18 is movably inserted in the equipment plate 1, the other end of each adjusting screw rod 18 is fixedly connected to the side surface of the clamping seat 5, each clamping assembly 20 comprises a sliding rod 201 and a circular baffle 202, spacing spring 203 and three hornblocks 204, spacing spring 203 activity cup joints the surface at slide bar 201, circular baffle 202 fixed connection is in the one end of slide bar 201, three hornblocks 204 fixed connection is at the other end of slide bar 201, the side of three hornblocks 204 offsets with the lateral surface of cassette 5, the one end of spacing spring 203 offsets with the inside wall of cassette 5, the other end of spacing spring 203 offsets with the side of three hornblocks 204, three hornblocks 204 and 6 movable clamping of rack, the upper surface of three hornblocks 204 is the horizontal plane, the lower surface of three hornblocks 204 is the inclined plane.
The working principle is as follows: the invention discloses a self-negative pressure pericardial puncture device, which is mainly used in the pericardial puncture operation process, and the puncture needle 12 is inserted into the pericardial cavity, so that the hand trembling and poor control of the insertion force caused by manual operation are avoided, and the damage to the heart of a patient is reduced;
the first embodiment,
When the invention is used, firstly, a patient lies on an operating bed, the jacket of the patient is removed, the accurate puncture position marking is carried out at the thoracic cavity position of the patient, the subsequent operation puncture position is determined, then the device is prepared to be installed and fixed, the adjusting screw rod 18 is moved out of the two sides of the equipment plate 1 by the moving distance by rotating the second thread rings 19 at the two sides of the equipment plate 1, the equipment plate 1 is ensured to be positioned right above the thoracic cavity position of the patient, simultaneously, the two clamping seats 5 are positioned at the two sides of an operating table, then the fixing clamping sleeve 21 is fixedly clamped on the side edge of the operating table and is fixedly installed by the locking bolt at the side surface of the fixing clamping sleeve 21, then the equipment plate 1 is pressed downwards, at the moment, the equipment plate 1 drives the two clamping seats 5 to slide downwards on the outer surface of the rack 6, at the moment, the tooth grooves at the outer surface of the rack 6 are extruded, the triangle 204 is extruded and is removed to the one side of keeping away from rack 6 this moment for slide bar 201 removes a section distance to cassette 5 outside, spacing spring 203 is compressed this moment, make cassette 5 can slide down at rack 6's surface, and finally make the operating position of drawing a line on translucent cover 3 and the patient's thorax contact, stop pressing equipment board 1 this moment, the upper surface of triangle 204 prevents effectively for the horizontal plane that equipment board 1 is by jack-up, the main part installation of this moment device is accomplished.
Example II,
After the first embodiment is completed, the puncture needle 12 is inserted into the adjusting tube 4 from the position of the clamping groove 14, the bottom end of the puncture needle 12 penetrates through the hollow tube 2 and enters the tapered tube 11 downward, the clamping rod 15 at the top of the puncture needle 12 enters the clamping groove 14 at the moment, then the adjusting heads 137 at the two sides of the fixing seat 10 are rotated to enable the first threaded rod 131 and the second threaded rod 132 to rotate synchronously, at the moment, the two sets of threaded sleeves 133 move towards the middle part on the outer surfaces of the first threaded rod 131 and the second threaded rod 132 respectively and are connected to the right above the sliding groove in a sliding manner through the sliding block 134 at the bottom, at the moment, the two sets of threaded sleeves 133 drive the two sets of clamping blocks 136 to move towards the middle part through the fixing strip 135, so that the two sets of clamping blocks 136 enter the clamping groove 14, and finally the two sets of clamping blocks 136 are movably clamped inside the clamping hole, the fixing of the puncture needle 12 is completed, the connection of the puncture negative pressure drainage device can be performed through the connecting pipe 17 at the top of the puncture needle 12, and all preparation work before the puncture is completed.
Example III,
After the second embodiment is completed, the bottom end of the puncture needle 12 is located inside the tapered tube 11, the bottom end of the tapered tube 11 is in contact with the skin of the patient, at this time, the medical staff can move the adjusting tube 4 to the inside of the hollow tube 2 by rotating the first threaded ring 8, at this time, the adjusting tube 4 drives the fixing seat 10 to move downwards through the connecting plate 9, the fixing seat 10 drives the puncture needle 12 to move downwards slowly, and finally, the bottom end of the puncture needle 12 pierces the skin of the patient and is inserted into the pericardial cavity of the patient from the designated operation position, in this process, the limiting rods 7 on the lower surfaces of the two sides of the connecting plate 9 slide downwards inside the limiting sleeve 22 to limit the movement of the adjusting tube 4, so that the adjusting tube 4 is prevented from rotating along with the first threaded ring 8, at this time, a doctor can observe the moving distance of the end of the puncture needle 12, avoid the puncture dynamics to hold not good, reduce simultaneously because the manual operation hand trembles and has caused the injury to the patient.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a from negative pressure pericardium piercing depth, includes equipment board (1), its characterized in that: the upper surface of the equipment plate (1) is fixedly connected with a hollow tube (2), the bottom end of the hollow tube (2) extends to the lower surface of the equipment plate (1) and is fixedly connected with a transparent cover (3), the inner top of the transparent cover (3) is fixedly connected with a conical tube (11), the top end of the hollow tube (2) is in threaded connection with an adjusting tube (4), the top of the adjusting tube (4) is fixedly connected with a connecting plate (9), the upper surface of the connecting plate (9) is fixedly connected with a fixed seat (10), a puncture needle (12) is movably inserted into the upper surface of the fixed seat (10), a fixed component (13) is movably clamped on the side surface of the fixed seat (10), the end part of the fixed component (13) extends to the inside of the fixed seat (10) and is movably clamped with the puncture needle (12), and clamping seats (5) are respectively in threaded connection with the two sides, a rack (6) is movably inserted into the upper surface of the clamping seat (5), the bottom end of the rack (6) extends to the lower part of the clamping seat (5) and is fixedly connected with a fixed clamping sleeve (21), a clamping component (20) is movably clamped on the side surface of the clamping seat (5), and the end part of the clamping component (20) extends to the inside of the clamping seat (5) and is movably clamped with the rack (6);
the fixing component (13) comprises a first threaded rod (131), a second threaded rod (132), threaded sleeves (133), sliding blocks (134), fixing strips (135), clamping blocks (136) and adjusting heads (137), wherein the first threaded rod (131) and the second threaded rod (132) are fixedly connected oppositely, the adjusting heads (137) are two groups and are fixedly connected to the outer surfaces of the back ends of the first threaded rod (131) and the second threaded rod (132) respectively, the threaded sleeves (133) are two groups and are in threaded connection to the outer surfaces of the first threaded rod (131) and the second threaded rod (132) respectively, the sliding blocks (134) are two groups and are fixedly connected to the lower surfaces of the two groups of threaded sleeves (133) respectively, the fixing strips (135) are two groups and are fixedly connected to the side surfaces of the back ends of the two groups of threaded sleeves (133) respectively, the number of the clamping blocks (136) is two, and the clamping blocks are respectively and fixedly connected to the outer surfaces of the two groups of the fixing strips (135) on the opposite sides.
2. The self-negative pressure pericardial puncture device according to claim 1, wherein: the thread groove screw pitch of first threaded rod (131) and second threaded rod (132) surface is the same and thread groove opposite direction, the one end that first threaded rod (131) and second threaded rod (132) carried on the back mutually rotates respectively and connects the both sides in fixing base (10), the spout has been seted up to the interior bottom of fixing base (10), slider (134) sliding connection is in the inside of spout.
3. The self-negative pressure pericardial puncture device according to claim 1, wherein: the upper surface of the fixed seat (10) is provided with a clamping groove (14), the top end of the puncture needle (12) is fixedly connected with a clamping rod (15), the clamping rod (15) is movably clamped inside the clamping groove (14), and the upper surface of the clamping rod (15) is fixedly connected with a connecting pipe (17).
4. The self-negative pressure pericardial puncture device according to claim 3, wherein: the clamping rod (15) is provided with clamping holes (16) at two ends, and the clamping block (136) is movably clamped inside the clamping holes (16).
5. The self-negative pressure pericardial puncture device according to claim 1, wherein: the top of hollow tube (2) is rotated and is connected with first screw ring (8), the bottom threaded connection of adjusting tube (4) is in the inside of first screw ring (8) and downwardly extending to the inside of hollow tube (2).
6. The self-negative pressure pericardial puncture device according to claim 1, wherein: the lower surface of connecting plate (9) just is located the equal fixedly connected with gag lever post (7) in both sides of regulating pipe (4), the upper surface of equipment board (1) just is located the both sides of hollow tube (2) and all is fixed the grafting has spacing sleeve (22), gag lever post (7) activity is pegged graft in the inside of spacing sleeve (22).
7. The self-negative pressure pericardial puncture device according to claim 1, wherein: the two ends of the equipment plate (1) are rotatably connected with second threaded rings (19), the inner threads of the second threaded rings (19) are connected with adjusting screw rods (18), one ends of the adjusting screw rods (18) are movably inserted into the equipment plate (1), and the other ends of the adjusting screw rods (18) are fixedly connected to the side faces of the clamping seats (5).
8. The self-negative pressure pericardial puncture device according to claim 1, wherein: joint subassembly (20) include slide bar (201), circular baffle (202), spacing spring (203) and three hornblocks (204), the surface at slide bar (201) is cup jointed in spacing spring (203) activity, circular baffle (202) fixed connection is in the one end of slide bar (201), three hornblocks (204) fixed connection are at the other end of slide bar (201).
9. The self-negative pressure pericardial puncture device according to claim 8, wherein: the side of the three-corner block (204) is abutted against the outer side face of the clamping seat (5), one end of the limiting spring (203) is abutted against the inner side wall of the clamping seat (5), the other end of the limiting spring (203) is abutted against the side face of the three-corner block (204), the three-corner block (204) is movably clamped with the rack (6), the upper surface of the three-corner block (204) is a horizontal plane, and the lower surface of the three-corner block (204) is an inclined plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011357146.3A CN112370126A (en) | 2020-11-27 | 2020-11-27 | Self-negative pressure pericardium puncture device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011357146.3A CN112370126A (en) | 2020-11-27 | 2020-11-27 | Self-negative pressure pericardium puncture device |
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| CN112370126A true CN112370126A (en) | 2021-02-19 |
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|---|---|---|---|
| CN202011357146.3A Pending CN112370126A (en) | 2020-11-27 | 2020-11-27 | Self-negative pressure pericardium puncture device |
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Application publication date: 20210219 |
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| RJ01 | Rejection of invention patent application after publication |