CN113768592A - Clinical piercing depth of intracardiac branch of academic or vocational study - Google Patents
Clinical piercing depth of intracardiac branch of academic or vocational study Download PDFInfo
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- CN113768592A CN113768592A CN202111056374.1A CN202111056374A CN113768592A CN 113768592 A CN113768592 A CN 113768592A CN 202111056374 A CN202111056374 A CN 202111056374A CN 113768592 A CN113768592 A CN 113768592A
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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
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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
- A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
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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
- A61B2017/3405—Needle locating or guiding means using mechanical guide means
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Abstract
The invention discloses a clinical puncture device for cardiology, which comprises: the puncture needle comprises a needle head and a hard needle cylinder connected to the rear end of the needle head, and the rear end of the needle cylinder is connected with a hose; the puncture needle bracket comprises a needle head bracket and a needle cylinder bracket, and the puncture needle can penetrate into the puncture needle bracket; the first fixing part is movably arranged at the front end of the needle head bracket and is provided with a locking component, and the first fixing part can be fixed on skin; the second fixing part is connected with the needle cylinder bracket through a shapeable hose and can be fixed on the skin; the liquid pumping mechanism is integrally connected to one side of the needle cylinder support, a mounting groove is formed in the liquid pumping mechanism and used for mounting an injector, and the hose is detachably connected with the injector; the transmission mechanism is arranged on one side of the mounting groove, is connected with the drawing end of the injector and the needle cylinder arranged in the needle cylinder bracket in a penetrating way, and can drive the needle cylinder to move backwards when the drawing end is drawn out.
Description
Technical Field
The invention belongs to the technical field of intracardiac department puncture, and particularly relates to a clinical puncture device for the intracardiac department.
Background
The cardiology department generally refers to the cardiovascular medicine department, which is a clinical department set by all levels of major internal medicine departments for diagnosing and treating cardiovascular and cerebrovascular diseases, and the treated diseases comprise angina pectoris, hypertension, sudden death, arrhythmia, heart failure, premature beat, arrhythmia, myocardial infarction, cardiomyopathy, myocarditis, acute myocardial infarction and other cardiovascular diseases.
In the department of cardiology, pericardial effusion is a common clinical manifestation, and is one of the important signs of pericardial disease, and can be seen in exudative pericarditis and other non-inflammatory pericardial lesions, when the pericardial effusion lasts for more than several months, chronic pericardial effusion is formed, and if the pericardial effusion is not timely treated, cardiac insufficiency can be caused, and life risks can be caused. In the cardiology treatment, a puncture operation is usually adopted to extract the hydropericardium of a patient, and the hydrops in the pericardium is sucked or drained out so as to quickly relieve the cardiac tamponade or obtain the pericardial fluid and achieve the purpose of treatment or assistance of clinical diagnosis.
Clinically, when the pericardial effusion is extracted, a puncture needle needs to be inserted into the pericardium of a patient, the needle inserting speed is low, the needle inserting angle requirement is high, fine adjustment is frequently required during needle inserting, and the conventional puncture device with a limiting or positioning function is generally difficult to realize the angle adjustment of the needle inserting and the limiting of the puncture needle at the same time, so the practical application significance is not great; when the needle head enters the pericardial cavity, a doctor can feel that the needle head is continuously inserted until the needle head is uploaded to provide heart pulsation, the needle head needs to be retracted a bit immediately, then liquid is extracted, and in the extraction process, as the liquid is gradually reduced, tissues propped up by the liquid are gradually contracted, the needle head needs to be retracted slowly in a proper way to avoid touching the contracted tissues in the extraction process, the operation has higher requirements on the stability of the doctor operation, and the doctor needs to hold the puncture needle by hand constantly; meanwhile, when one syringe is fully drawn in the drawing process, the latex tube is taken by using the hemostatic forceps, the latex tube is butted after the syringe is emptied, the suction is continued after the hemostatic forceps are released, the suction is repeatedly carried out, the tube is repeatedly clamped, in order to prevent gas from entering the body, at least two people are required to be used together for sucking the pericardial effusion, the operation is troublesome, and the stability is poor.
Disclosure of Invention
The invention aims to provide a clinical puncture device for cardiology, which is provided with a puncture needle support, not only can conveniently and flexibly adjust the needle inserting angle of a puncture needle, but also can limit the puncture needle, the puncture needle support and an injector can be positioned on the body of a patient through a first fixing part, a second fixing part and a liquid pumping mechanism integrated with the puncture needle support, the movement of the puncture needle caused by the movement of the patient is avoided, a transmission mechanism is arranged, the slow needle withdrawal of the puncture needle can be realized along with the extraction of a pulling end, the operation is very convenient, and the single operation can be realized.
In order to achieve the above object, the present invention provides a clinical puncture device for cardiology, comprising:
the puncture needle comprises a needle head and a hard needle cylinder connected to the rear end of the needle head, and the rear end of the needle cylinder is connected with a hose;
the puncture needle bracket comprises a needle head bracket and a needle cylinder bracket, and the puncture needle can penetrate into the puncture needle bracket;
the first fixing part is movably arranged at the front end of the needle head bracket and is provided with a locking component, and the first fixing part can be fixed on skin;
the second fixing part is connected with the needle cylinder bracket through a shapeable hose and can be fixed on the skin;
the liquid pumping mechanism is integrally connected to one side of the needle cylinder support, a mounting groove is formed in the liquid pumping mechanism and used for mounting an injector, and the hose is detachably connected with the injector;
the transmission mechanism is arranged on one side of the mounting groove, is connected with the drawing end of the injector and the needle cylinder arranged in the needle cylinder bracket in a penetrating way, and can drive the needle cylinder to move backwards when the drawing end is drawn out.
Optionally, the syringe needle support is the tube-shape, the front end of syringe needle support is provided with spherical first connecting portion, be provided with in the first connecting portion with the syringe needle via hole of syringe needle support intercommunication, the internal diameter of syringe needle via hole is greater than the external diameter of syringe needle.
Optionally, the first fixing portion includes an annular second connecting portion, the inner surface of the second connecting portion is a spherical surface, the second connecting portion wraps the outer side of the first connecting portion and is in running fit with the first connecting portion, three first supporting legs are connected to the periphery of the second connecting portion, a first suction cup is arranged on the first supporting leg, the first suction cup can be adsorbed on skin, the locking component includes a locking screw, and the locking screw is screwed on one side of the second connecting portion and can lock the first connecting portion.
Optionally, the second fixing portion includes three second support legs, three one end of the second support leg is provided with a second suction cup, and the other end of the third support leg is connected with the shapeable hose.
Optionally, the syringe support is cylindrical, the inner diameter of the syringe support is greater than the outer diameter of the syringe, and a manual retraction structure is arranged on the syringe support and comprises:
the annular groove is formed in the periphery of the needle cylinder support;
the three radial sliding grooves are uniformly distributed at the groove bottom of the annular groove along the radial direction of the needle cylinder bracket;
the three sliding blocks are respectively embedded in the three radial sliding grooves in a sliding manner, and an elastic component is arranged between each sliding block and each radial sliding groove;
the driving ring is movably embedded in the annular groove, three convex parts are arranged on the inner periphery of the driving ring, and the outer surface of the driving ring protrudes out of the outer surface of the needle cylinder support.
Optionally, the periphery of needle cylinder is gone up along the axis direction of needle cylinder is provided with the annular tooth, and one of them slider is close to rotate on the one end of needle cylinder and is provided with first gear, two other sliders are close to rotate on the one end of needle cylinder and be provided with driven gear, first gear can with the meshing transmission of annular tooth, be provided with first transmission shaft on the first gear, the one end of first transmission shaft to the outside of needle cylinder support extends and is connected with the second gear.
Optionally, the transmission mechanism comprises:
the rack is arranged on one side of the mounting groove in a sliding mode, one end of the rack is provided with a clamping plate, and the clamping plate can be clamped with the drawing end;
the third gear is rotatably arranged on one side of the rack and meshed with the rack, and a second transmission shaft is arranged on the third gear;
the input end of the speed reducer is connected with the second transmission shaft;
and the fourth gear is connected with the output end of the speed reducer through a third transmission shaft, the fourth gear is arranged on one side of the second gear, and the second gear is meshed with the fourth gear when the first gear is meshed with the annular teeth.
Optionally, the length of cylinder is greater than the length of cylinder support, be provided with handheld portion on the rear end periphery of cylinder, the surface of handheld portion is provided with anti-skidding line.
Optionally, the cylinder pass through the three-way valve with the hose connection, still be connected with the pipe on the three-way valve, the pipe can insert the vacuum imbibition bottle, be provided with the gauze in the vacuum imbibition bottle.
Optionally, the needle holder and the syringe holder are transparent, and the syringe is provided with scales.
The invention provides a clinical puncture device for cardiology, which has the beneficial effects that:
1. the device is provided with a puncture needle support, the needle inserting angle of a puncture needle can be conveniently and flexibly adjusted, the puncture needle can be limited, the puncture needle support and an injector can be positioned on the body of a patient through a first fixing part, a second fixing part and a liquid pumping mechanism integrated with the puncture needle support, the movement of the puncture needle caused by the movement of the patient is avoided, the device is provided with a transmission mechanism, the slow needle withdrawing of the puncture needle can be realized along with the extraction of a pumping end, the operation is very convenient, and the one-man operation can be realized;
2. the puncture needle support of the device enables the puncture needle to move in the support, and the cooperation of the spherical first connecting part and the spherical second connecting part enables the puncture needle support and the first fixing part to move freely, so that the needle inserting angle of the puncture needle can be adjusted conveniently;
3. the device is provided with a manual contraction structure, the slide block can move inwards to further limit the needle cylinder by rotating the driving ring, the stability of the puncture needle after needle insertion is kept, and the puncture needle is prevented from swinging after being inserted into a pericardium;
4. the device is provided with a transmission mechanism, and the needle cylinder is driven to slowly withdraw while the drawing end moves through the transmission matching of the gear and the rack and the action of the speed reducer, so that the contracted tissue after the effusion is drawn is prevented from contacting the needle head, and the automatic slow needle withdrawing is stable and easy to operate;
5. the rear end of the needle cylinder of the device is provided with the three-way valve, the conduction and the plugging of the hose can be realized by operating the three-way valve, and the device is provided with the catheter and the vacuum imbibition bottle, so that whether the liquid is effusion or not can be conveniently verified when the pumped liquid is blood liquid.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a schematic structural view of a clinical puncture device for cardiology department according to an embodiment of the present invention.
Fig. 2 shows an enlarged schematic view of a structure of fig. 1.
Fig. 3 is a schematic structural view of a first fixing portion of a clinical puncture device for cardiology department according to an embodiment of the present invention.
FIG. 4 illustrates a schematic view of a manually retractable structure of a clinical puncturing device for cardiology, according to one embodiment of the invention.
FIG. 5 shows a schematic structural diagram of a transmission mechanism of a clinical puncture device for cardiology department according to an embodiment of the present invention.
Description of reference numerals:
1. puncturing needle; 2. a needle head; 3. a needle cylinder; 4. a hose; 5. a puncture needle holder; 6. a needle holder; 7. a syringe bracket; 8. gauze; 9. a first fixed part; 10. a locking member; 11. a second fixed part; 12. the hose can be shaped; 13. a liquid pumping mechanism; 14. an injector; 15. a transmission mechanism; 16. a first connection portion; 17. a second connecting portion; 18. a first leg; 19. a first suction cup; 20. a second leg; 21. a second suction cup; 22. a manual retraction mechanism; 23. an annular groove; 24. a radial chute; 25. a slider; 26. an elastic member; 27. a drive ring; 28. a boss portion; 29. an annular tooth; 30. a first gear; 31. a first drive shaft; 32. a second gear; 33. a rack; 34. clamping a plate; 35. a third gear; 36. a second drive shaft; 37. a speed reducer; 38. a fourth gear; 39. a hand-held portion; 40. a three-way valve; 41. a conduit; 42. a vacuum imbibition bottle; 43. a driven gear.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides a clinical puncture device for cardiology, which comprises:
the puncture needle comprises a needle head and a hard needle cylinder connected to the rear end of the needle head, and the rear end of the needle cylinder is connected with a hose;
the puncture needle bracket comprises a needle head bracket and a needle cylinder bracket, and the puncture needle can penetrate into the puncture needle bracket;
the first fixing part is movably arranged at the front end of the needle head bracket and is provided with a locking component, and the first fixing part can be fixed on skin;
the second fixing part is connected with the needle cylinder bracket through a shapeable hose and can be fixed on the skin;
the liquid pumping mechanism is integrally connected to one side of the needle cylinder support, a mounting groove is formed in the liquid pumping mechanism and used for mounting an injector, and the hose is detachably connected with the injector;
the transmission mechanism is arranged on one side of the mounting groove, is connected with the drawing end of the injector and the needle cylinder arranged in the needle cylinder bracket in a penetrating way, and can drive the needle cylinder to move backwards when the drawing end is drawn out.
Specifically, this piercing depth has puncture needle holder, can carry on spacingly to the puncture needle, and fix it on patient's health through first fixed part and second fixed part, stability when improving the operation, first fixed part and syringe needle support swing joint, do not influence the adjustment of pjncture needle angle of inserting, the device's puncture needle holder and drawing liquid mechanism formula structure as an organic whole, all can fix on patient during the use, convenient operation, need not two people concurrent operation, drive mechanism's setting can be when the outside pull of the pull end of syringe automatically slowly drive needle tubing rearward movement, can avoid the tissue contact syringe needle of shrink after the hydrops extraction.
In one example, the liquid pumping mechanism comprises a base, the base is connected with the syringe bracket to form an integrated structure, the mounting groove is arranged on the base, the transmission mechanism is arranged inside the base, and a cavity and a plurality of supporting parts matched with the transmission mechanism are arranged inside the base.
Optionally, the syringe needle support is the tube-shape, and the front end of syringe needle support is provided with spherical first connecting portion, is provided with the syringe needle via hole with syringe needle support intercommunication in the first connecting portion, and the internal diameter of syringe needle via hole is greater than the external diameter of syringe needle.
Specifically, the needle head is arranged in the needle head through hole in a penetrating mode and is provided with a certain moving space, and fine adjustment of the needle head during needle insertion is facilitated.
Optionally, the first fixing portion includes an annular second connecting portion, the inner surface of the second connecting portion is a spherical surface, the second connecting portion wraps the outer side of the first connecting portion and is in running fit with the first connecting portion, three first supporting legs are connected to the periphery of the second connecting portion, a first suction cup is arranged on the first supporting legs and can be adsorbed on skin, the locking component includes a locking screw, and the locking screw is screwed on one side of the second connecting portion and can lock the first connecting portion.
Specifically, the first fixing part can be adsorbed around the needle inserting position on the patient body through the first suction discs on the three support legs to play a positioning role, the first fixing part and the second fixing part form double repositioning, the device is fixed on the body of the patient, so that a doctor does not need to hold the puncture needle by hand to keep the stability of the puncture needle after the needle is inserted, and the second fixing part is connected with the needle cylinder bracket through a shapeable hose to facilitate the adjustment before the needle is inserted in place; when the needle is inserted, a doctor can freely adjust the needle inserting angle by utilizing the movable connection of the first connecting part and the second connecting part, so that the needle is conveniently inserted; after the needle is inserted in place, the locking screw is rotated to lock the relative positions of the first connecting part and the second connecting part, so that the needle head support is fixed, and the limitation on the needle head is realized.
Optionally, the second fixing portion includes three second support legs, one end of the three second support legs is provided with a second suction cup, and the other end of the three second support legs is connected with the shapeable hose.
Specifically, the second supporting leg and the second sucker on the second supporting leg can be adsorbed on the body of a patient, so that the device can be fixed on the body of the patient, another doctor does not need to hold the injector during use, the shapeable hose can change the shape when stressed and has certain shape keeping capacity, and the position of the device can be adjusted conveniently in the needle inserting process.
Optionally, the cylinder support is the tube-shape, and the internal diameter of cylinder support is greater than the external diameter of cylinder, is provided with manual constriction structure on the cylinder support, and manual constriction structure includes:
the annular groove is formed in the periphery of the needle cylinder support;
the three radial sliding chutes are uniformly distributed at the bottom of the annular groove along the radial direction of the needle cylinder bracket;
the three sliding blocks are respectively embedded in the three radial sliding chutes in a sliding manner, and elastic components are arranged between the sliding blocks and the radial sliding chutes;
the driving ring is movably embedded in the annular groove, three convex parts are arranged on the inner periphery of the driving ring, and the outer surface of the driving ring protrudes out of the outer surface of the needle cylinder support.
Specifically, the needle cylinder of pjncture needle has certain mobility in the needle cylinder support, makes things convenient for the regulation of the needle inserting direction of pjncture needle, has manual constriction structure again simultaneously, can rotate through the operation drive ring, utilizes the bellying to press and moves three slider and overcome elastomeric element's elasticity simultaneously and remove to the direction that is close to the needle cylinder, carries out further spacing to the needle cylinder, guarantees to advance to the radial positioning of puncture needle after target in place, avoids the pjncture needle to rock.
Optionally, the periphery of the needle cylinder is provided with annular teeth along the axis direction of the needle cylinder, one end of one of the sliders close to the needle cylinder is provided with a first gear in a rotating manner, one end of the other two sliders close to the needle cylinder is provided with a driven gear in a rotating manner, the first gear can be in meshing transmission with the annular teeth, the first gear is provided with a first transmission shaft, and one end of the first transmission shaft extends to the outside of the needle cylinder support and is connected with a second gear.
Specifically, first gear and second gear belong to rigid connection, and the second gear rotation can drive first gear and rotate, and the transmission can be realized with the meshing of annular tooth to first gear, can drive the cylinder through first gear and remove along the axis direction.
Furthermore, the first transmission shaft penetrates through the outer wall of the syringe support, and a long groove capable of accommodating the first transmission shaft in a sliding mode is formed in the outer wall of the syringe support.
Optionally, the transmission mechanism comprises:
the rack is arranged on one side of the mounting groove in a sliding manner, and one end of the rack is provided with a clamping plate which can be clamped with the drawing end;
the third gear is rotatably arranged on one side of the rack and meshed with the rack, and a second transmission shaft is arranged on the third gear;
the input end of the speed reducer is connected with the second transmission shaft;
the fourth gear is connected with the output end of the speed reducer through a third transmission shaft, the fourth gear is arranged on one side of the second gear, and the second gear is meshed with the fourth gear when the first gear is meshed with the annular gear.
Specifically, when the driving ring is operated to enable the sliding block to move towards the needle cylinder, the first gear is meshed with the annular teeth, meanwhile, the second gear is meshed with the fourth gear, the drawing end of the syringe is pulled to drive the rack to move through the clamping plate, the third gear is driven to rotate, the third gear rotates after passing through the speed reducer and is transmitted to the fourth gear, the needle cylinder is driven to move backwards slowly, and the puncture needle is withdrawn slowly in the liquid drawing process.
In one example, the rack is slidably disposed in a rack slot in the base, one end of the catch plate is connected to the rack, and the other end of the catch plate is provided with a notch into which the pull end of the syringe is snapped when the syringe is mounted in the mounting slot.
Optionally, the length of the syringe is greater than that of the syringe bracket, a handheld portion is arranged on the periphery of the rear end of the syringe, and anti-skid grains are arranged on the outer surface of the handheld portion.
Particularly, the rear end of the longer needle cylinder is provided with a handheld part, so that a doctor can conveniently hold the needle cylinder by hand to insert the puncture needle.
Optionally, the needle cylinder is connected with the hose through a three-way valve, the three-way valve is further connected with a catheter, the catheter can be inserted into a vacuum imbibing bottle, and gauze is arranged in the vacuum imbibing bottle.
Specifically, the three-way valve is operated to switch the connection between the needle cylinder and the hose or between the needle cylinder and the catheter, accumulated liquid can be extracted when the needle cylinder is connected with the hose, the hose can be cut off to be connected when the needle cylinder is connected with the catheter, gas is prevented from entering the needle cylinder, the catheter can be inserted into the vacuum imbibition bottle, accumulated liquid is dripped on gauze, and if the center is a dark red spot, the periphery of the spot is a light red halo, the accumulated liquid is pericardial accumulated liquid; if the whole blood is whole blood, the whole blood is uniformly dispersed to form dark red spots when being dripped on the gauze, and the puncture needle is pulled out to stop the extraction at the moment.
Optionally, the needle holder and the syringe holder are transparent, and the syringe is provided with scales.
Specifically, the transparent needle head bracket and the needle cylinder bracket are convenient for observing the puncture condition of the puncture needle, and the scales can be convenient for measuring the insertion depth of the puncture needle.
Examples
As shown in fig. 1 to 5, the present invention provides a clinical puncture device for cardiology, which includes:
the puncture needle comprises a puncture needle 1, wherein the puncture needle 1 comprises a needle head 2 and a hard needle cylinder 3 connected to the rear end of the needle head 2, and the rear end of the needle cylinder 3 is connected with a hose 4;
the puncture needle bracket 5 comprises a needle head bracket 6 and a needle cylinder bracket 7, and the puncture needle 1 can penetrate into the puncture needle bracket 5;
a first fixing part 9 movably arranged at the front end of the needle holder 6 and provided with a locking part 10, wherein the first fixing part 9 can be fixed on the skin;
a second fixing part 11 connected with the syringe bracket 7 through a shapeable hose 12, the second fixing part 11 can be fixed on the skin;
the liquid pumping mechanism 13 is integrally connected to one side of the syringe bracket 7, a mounting groove is formed in the liquid pumping mechanism 13 and used for mounting an injector 14, and the hose 4 is detachably connected with the injector 14;
and the transmission mechanism 15 is arranged on one side of the mounting groove, the transmission mechanism 15 is connected with the drawing end of the injector 14 and the needle cylinder 3 arranged in the needle cylinder bracket 7 in a penetrating manner, and the drawing end can drive the needle cylinder 3 to move backwards when being drawn out.
In this embodiment, syringe needle support 6 is the tube-shape, and the front end of syringe needle support 6 is provided with spherical first connecting portion 16, is provided with the 2 via holes of syringe needle that communicate with syringe needle support 6 in the first connecting portion 16, and the internal diameter of 2 via holes of syringe needle is greater than the external diameter of syringe needle 2.
In this embodiment, the first fixing portion 9 includes an annular second connecting portion 17, an inner surface of the second connecting portion 17 is a spherical surface, the second connecting portion 17 is wrapped outside the first connecting portion 16 and is rotationally matched with the first connecting portion 16, three first legs 18 are connected to an outer periphery of the second connecting portion 17, a first suction disc 19 is disposed on the first legs 18, the first suction disc 19 can be adsorbed on skin, the locking component 10 includes a locking screw, and the locking screw is screwed on one side of the second connecting portion 17 and can lock the first connecting portion 16.
In this embodiment, the second fixing portion 11 comprises three second legs 20, one end of the three second legs 20 is provided with a second suction cup 21, and the other end of the three second legs 20 is connected with the shapeable hose 12.
In this embodiment, the syringe support 7 is cylindrical, the inner diameter of the syringe support 7 is greater than the outer diameter of the syringe 3, the syringe support 7 is provided with a manual contraction structure 22, and the manual contraction structure 22 includes:
the annular groove 23, the annular groove 23 is set up on the periphery of the syringe support 7;
three radial sliding grooves 24 are uniformly distributed at the bottom of the annular groove 23 along the radial direction of the needle cylinder bracket 7;
the three sliding blocks 25 are respectively embedded in the three radial sliding grooves 24 in a sliding manner, and an elastic part 26 is arranged between each sliding block 25 and each radial sliding groove 24;
and the driving ring 27 is movably embedded in the annular groove 23, three convex parts 28 are arranged on the inner periphery of the driving ring 27, and the outer surface of the driving ring 27 protrudes out of the outer surface of the syringe bracket 7.
In this embodiment, the needle cylinder 3 is provided with annular teeth 29 along the axial direction of the needle cylinder 3 on the periphery thereof, one end of one of the sliders 25 close to the needle cylinder 3 is provided with a first gear 30 in a rotating manner, the other end of the other two sliders 25 close to the needle cylinder 3 is provided with a driven gear 43 in a rotating manner, the first gear 30 can be in meshing transmission with the annular teeth 29, the first gear 30 is provided with a first transmission shaft 31, and one end of the first transmission shaft 31 extends to the outside of the needle cylinder support 7 and is connected with a second gear 32.
In the present embodiment, the transmission mechanism 15 includes:
the rack 33 is arranged on one side of the mounting groove in a sliding mode, one end of the rack 33 is provided with a clamping plate 34, and the clamping plate 34 can be clamped with the drawing end;
a third gear 35 rotatably disposed at one side of the rack 33 and engaged with the rack 33, the third gear 35 being provided with a second transmission shaft 36;
the input end of the speed reducer 37 is connected with the second transmission shaft 36;
and a fourth gear 38 connected to an output end of the speed reducer 37 through a third transmission shaft, the fourth gear 38 being disposed on a side of the second gear 32, the second gear 32 being engaged with the fourth gear 38 when the first gear 30 is engaged with the ring gear 29.
In this embodiment, the length of the syringe 3 is greater than that of the syringe holder 7, a grip 39 is provided on the outer circumference of the rear end of the syringe 3, and an anti-slip pattern is provided on the outer surface of the grip 39.
In this embodiment, the syringe 3 is connected to the hose 4 through the three-way valve 40, the three-way valve 40 is further connected to a conduit 41, the conduit 41 is inserted into a vacuum pipette bottle 42, and the vacuum pipette bottle 42 is provided with a gauze 8.
In this embodiment, the needle holder 6 and the cylinder holder 7 are transparent, and the cylinder 3 is provided with scales.
In summary, when the clinical puncturing device for cardiology provided by the present invention is used, the pericardiocentesis puncture under xiphoid process is taken as an example: the patient adopts a sitting position or a semi-lying position, a needle is inserted at the included angle between the xiphoid process and the left costal arch, the included angle between the puncture needle 1 and the abdominal wall is 30-45 degrees, and the puncture needle upwards, backwards and slightly leftwards enters the rear lower part of the pericardial cavity; after the needle feeding position is determined, the puncture device is adsorbed on the skin of a patient through the first fixing part 9 and the second fixing part 11, the three first suction discs 19 of the first fixing part 9 are positioned around the needle feeding point, and the needle feeding angle of the puncture needle bracket 5 can be freely adjusted due to the movable connection of the first connecting part 16 and the second connecting part 17; the syringe 14 is connected with the hose 4 and is placed in the mounting groove, and the clamping plate 34 is clamped on the drawing end of the syringe 14; the puncture needle 1 penetrates into the puncture needle bracket 5, the doctor can insert the needle by holding the handheld part 39, the doctor can feel that the needle 2 enters the pericardial cavity, the needle can be inserted continuously until the needle 2 is uploaded to achieve heart throbbing, the needle 2 needs to be retracted a bit immediately, and then pericardial effusion can be extracted. Rotating the driving ring 27, pressing the three sliding blocks 25 by the convex part 28 on the driving ring 27, wherein the three sliding blocks 25 move to the direction close to the needle cylinder 3 and contact with the needle cylinder 3, two sliding blocks 25 are matched with the outer surface of the needle cylinder 3 in a sliding way, the first gear 30 is meshed with the annular tooth 29, and the second gear 32 also moves to the direction close to the fourth gear 38 and is meshed with the fourth gear 38; the three-way valve 40 is operated to conduct the hose 4, the drawing end of the injector 14 is drawn, the effusion is drawn in the center package, the clamping plate 34 drives the rack 33 to move in the drawing process, the rack 33 and the third gear 35 are matched to enable the third gear 35 to rotate, the power is transmitted to the fourth gear 38 after being reduced by the speed reducer 37, the fourth gear 38 and the second gear 32 are meshed to continue transmission to enable the first gear 30 to rotate, the needle cylinder 3 is driven to slowly move backwards, and the tissue contracted after the effusion is drawn is prevented from contacting the needle head 2. When bloody liquid appears in the needle cylinder 3, the three-way valve 40 is operated to conduct the conduit 41 and cut off the hose 4, the conduit 41 is inserted into the vacuum imbibition bottle 42, so that accumulated liquid is dripped on the gauze 8, and if the center is a dark red spot and the periphery is a light red halo, the accumulated liquid is pericardial liquid; if the whole blood is dropped on the gauze 8, the whole blood is uniformly spread to form a dark red spot, and the puncture needle 1 should be pulled out to stop the extraction.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. An intracardiac clinical puncture device, characterized in that, the device includes:
the puncture needle comprises a needle head and a hard needle cylinder connected to the rear end of the needle head, and the rear end of the needle cylinder is connected with a hose;
the puncture needle bracket comprises a needle head bracket and a needle cylinder bracket, and the puncture needle can penetrate into the puncture needle bracket;
the first fixing part is movably arranged at the front end of the needle head bracket and is provided with a locking component, and the first fixing part can be fixed on skin;
the second fixing part is connected with the needle cylinder bracket through a shapeable hose and can be fixed on the skin;
the liquid pumping mechanism is integrally connected to one side of the needle cylinder support, a mounting groove is formed in the liquid pumping mechanism and used for mounting an injector, and the hose is detachably connected with the injector;
the transmission mechanism is arranged on one side of the mounting groove, is connected with the drawing end of the injector and the needle cylinder arranged in the needle cylinder bracket in a penetrating way, and can drive the needle cylinder to move backwards when the drawing end is drawn out.
2. The clinical piercing depth of intracardiac branch of academic or vocational study of claim 1, characterized in that, the syringe needle support is the tube-shape, the front end of syringe needle support is provided with spherical first connecting portion, be provided with in the first connecting portion with the syringe needle support intercommunication the syringe needle via hole, the internal diameter of syringe needle via hole is greater than the external diameter of syringe needle.
3. The clinical puncture device of intracardiac branch of academic or vocational study of claim 2, characterized in that, the first fixed part includes annular second connecting portion, the internal surface of second connecting portion is the sphere, the second connecting portion parcel in the outside of first connecting portion and with first connecting portion normal running fit, be connected with three first stabilizer blade on the periphery of second connecting portion, be provided with first sucking disc on the first stabilizer blade, first sucking disc can adsorb on skin, locking part includes locking screw, locking screw spiro union is in one side of second connecting portion and can lock first connecting portion.
4. The clinical puncture device of intracardiac department of medicine of claim 1, characterized in that, the second fixed part includes three second stabilizer blades, and the one end of three said second stabilizer blades is provided with the second sucking disc, and the other end of three said second stabilizer blades is connected with the flexible pipe of can stereotyping.
5. The clinical puncture device of intracardiac branch of academic or vocational study of claim 1, characterized in that, syringe support is the tube-shape, and syringe support's internal diameter is greater than the external diameter of syringe, is provided with manual constriction structure on the syringe support, and manual constriction structure includes:
the annular groove is formed in the periphery of the needle cylinder support;
the three radial sliding grooves are uniformly distributed at the groove bottom of the annular groove along the radial direction of the needle cylinder bracket;
the three sliding blocks are respectively embedded in the three radial sliding grooves in a sliding manner, and an elastic component is arranged between each sliding block and each radial sliding groove;
the driving ring is movably embedded in the annular groove, three convex parts are arranged on the inner periphery of the driving ring, and the outer surface of the driving ring protrudes out of the outer surface of the needle cylinder support.
6. The clinical puncture device of intracardiac branch of academic or vocational study of claim 5, characterized in that, the periphery of syringe is provided with the annular tooth along the axis direction of syringe, and one of them slider is provided with first gear in the rotation on the one end of being close to the syringe, and two other slider is provided with driven gear in the rotation on the one end of being close to the syringe, first gear can with the meshing transmission of annular tooth, be provided with first transmission shaft on the first gear, the one end of first transmission shaft extends and is connected with the second gear to the outside of syringe support.
7. The cardiology clinical puncture device of claim 6, wherein the transmission mechanism comprises:
the rack is arranged on one side of the mounting groove in a sliding mode, one end of the rack is provided with a clamping plate, and the clamping plate can be clamped with the drawing end;
the third gear is rotatably arranged on one side of the rack and meshed with the rack, and a second transmission shaft is arranged on the third gear;
the input end of the speed reducer is connected with the second transmission shaft;
and the fourth gear is connected with the output end of the speed reducer through a third transmission shaft, the fourth gear is arranged on one side of the second gear, and the second gear is meshed with the fourth gear when the first gear is meshed with the annular teeth.
8. The clinical puncture device of intracardiac branch of academic or vocational study of claim 1, characterized in that, the length of syringe is greater than the length of syringe support, is provided with handheld portion on the rear end periphery of syringe, the surface of handheld portion is provided with anti-skidding line.
9. The clinical puncture device of intracardiac branch of academic or vocational study of claim 1, characterized in that, the cylinder is connected with the hose through the three-way valve, still be connected with the pipe on the three-way valve, the pipe can insert the vacuum imbibition bottle, be provided with the gauze in the vacuum imbibition bottle.
10. The clinical puncturing device for cardiology department according to claim 1, wherein the needle holder and the syringe holder are both transparent, and the syringe is provided with a scale.
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| CN113768592B (en) | 2023-03-14 |
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