CN110897687A - Intracardiac package puncture drawing liquid device for branch of academic or vocational study - Google Patents
Intracardiac package puncture drawing liquid device for branch of academic or vocational study Download PDFInfo
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- CN110897687A CN110897687A CN201911270857.4A CN201911270857A CN110897687A CN 110897687 A CN110897687 A CN 110897687A CN 201911270857 A CN201911270857 A CN 201911270857A CN 110897687 A CN110897687 A CN 110897687A
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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
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
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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
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
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- A61M1/0023—
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0801—Prevention of accidental cutting or pricking
- A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs
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Abstract
A pericardium puncture liquid pumping device for cardiology comprises a puncture needle, a positioning mechanism, an aspirator and a drug delivery device; the transfusion needle comprises an inner needle body and an outer needle body sleeved on the periphery of the inner needle body, the inner diameter of the outer needle body is larger than the outer diameter of the inner needle body, the inner needle body is attached to the inner wall of the outer needle body, a fixing part is fixedly arranged in the outer needle body close to the tail end, the inner needle body penetrates through the fixing part, and the rear part of the outer needle body is communicated with a guide pipe and a pushing block; the positioning mechanism comprises an installation sleeve, a sliding groove is formed in the installation sleeve, the outer needle body is arranged in the sliding groove in a sliding mode, and scales are arranged on the outer wall of the sliding groove; the suction machine is communicated with the guide pipe; the drug delivery device is in communication with the inner needle through a drug delivery tube. The invention provides a pericardial puncture liquid pumping device for cardiology, which can be accurately positioned, only needs one puncture and can reduce the damage to a patient.
Description
Technical Field
The invention relates to the field of treatment equipment for cardiology, in particular to a pericardium puncture liquid pumping device for cardiology.
Background
The cardiology department, i.e. the cardiovascular department, is a clinical department set by major internal medicine departments of all levels of hospitals for diagnosis and treatment of cardiovascular diseases, and the treated diseases include angina pectoris, hypertension, sudden death, arrhythmia, heart failure, premature beat, arrhythmia, myocardial infarction, cardiomyopathy, myocarditis, acute myocardial infarction and other cardiovascular diseases.
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, and can be usually determined by physical examination and X-ray examination. When the pericardial effusion lasts for more than a few months, chronic pericardial effusion is formed.
In the treatment of cardiovascular diseases, the fluid pumping device is an indispensable treatment device and has an important function of leading body fluid accumulated under the skin or in the cavity of a patient out of the body. In the liquid pumping device, a puncture needle is an important device which directly reaches an affected part, most of the existing puncture needles adopt a simple single-needle-tube structure, are separated from a transfusion needle for medicine conveying, and need to cause twice injuries to a patient. In addition, because the pericardium is special in position, slight deviation of the puncture depth can cause great harm to a patient, but the existing puncture needle completely depends on the experience of a doctor to position, and has great risk.
Besides the two defects, the currently used liquid pumping device generally only adopts a simple gravity drainage mode, the condition that the drainage tube is blocked frequently occurs in the drainage process, and the liquid pumping device is not easy to disassemble, clean and disinfect, thereby bringing great inconvenience to medical staff and patients.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a pericardial puncture liquid pumping device for cardiology department, which can be accurately positioned, only needs one puncture, and can reduce the damage to patients.
In order to achieve the purpose, the invention adopts the specific scheme that: a pericardium puncture liquid pumping device for cardiology comprises a puncture needle, a positioning mechanism, an aspirator and a drug delivery device; the infusion needle comprises an inner needle body and an outer needle body sleeved on the periphery of the inner needle body, the inner diameter of the outer needle body is larger than the outer diameter of the inner needle body, the inner needle body is attached to the inner wall of the outer needle body, a fixing part is fixedly arranged in the outer needle body close to the tail end, the inner needle body penetrates through the fixing part, and the rear part of the outer needle body is communicated with a guide pipe and a pushing block; the positioning mechanism comprises an installation sleeve, a sliding groove is formed in the installation sleeve, the outer needle body is arranged in the sliding groove in a sliding mode, and scales are arranged on the outer wall of the sliding groove; the suction machine is communicated with the guide pipe; the drug delivery device is communicated with the inner needle body through a medicament input tube.
Preferably, a sealing member is arranged between the fixing member and the end of the outer needle body, and the inner needle body penetrates through the sealing member.
As a preferable scheme, the suction machine is communicated with the guide pipe through a drainage mechanism;
as a preferred scheme, the drainage mechanism comprises a connecting rod, a main channel extending along the length direction is formed in the middle of the connecting rod, one end of the main channel is communicated with a front drainage tube, the front drainage tube is communicated with the guide tube, the other end of the main channel is communicated with a rear drainage tube, the rear drainage tube is communicated with the suction machine, one end of the main channel, close to the front drainage tube, is communicated with a side channel, the side channel penetrates through the outer wall of the connecting rod and inclines towards the front drainage tube, the side channel is communicated with a pump through a liquid output tube, and the pump is communicated with a liquid storage tank through a guide tube.
As a preferred scheme, the connecting rod is connected with the preposed drainage tube, the postposition drainage tube or the liquid output tube through a connector, the connector comprises a conical mounting seat fixedly connected with the connecting rod, a connecting channel is arranged on the mounting seat, the connecting channel is communicated with the main channel or the side channel, a limiting ring is fixedly arranged in the connecting channel, and the preposed drainage tube, the postposition drainage tube or the liquid output tube is abutted against the limiting ring.
Preferably, the limiting ring is fixedly connected with a tubular soft clamping member, the soft clamping member faces the outer side of the connecting rod, a gap for accommodating the preposed drainage tube, the postpositional drainage tube or the liquid output tube is reserved between the outer wall of the soft clamping member and the inner wall of the connecting channel, and the inner wall of the soft clamping member is conical and the small end of the inner wall of the soft clamping member faces the inner side of the connecting rod.
As a preferred scheme, an adhesive tape is wound on the outer wall of the mounting seat, one end of the adhesive tape is fixedly connected with the mounting seat, and the other end of the adhesive tape is fixedly connected with a plastic sheet.
As a preferable scheme, a flow velocity sensing assembly is arranged in a part of the main channel, which is close to the rear drainage tube, and is connected with a controller, and the controller is connected with the pump;
as a preferred scheme, the velocity of flow response subassembly is including seting up through-hole on the connecting rod, and the through-hole with main passageway mutually perpendicular is provided with the base in the through-hole, and the base rotates and is connected with the fly leaf, the fly leaf with main passageway mutually perpendicular and with be connected through soft closed membrane between the inner wall of through-hole, during the one end of fly leaf stretched into the main passageway, the other one end of fly leaf stretches out from the through-hole, controller electric connection has button switch, button switch sets up in the outside of connecting rod, triggers or turn-offs in the fly leaf activity process.
As a preferred scheme, the controller is connected with a soft connecting pipe, the connecting pipe is fixedly connected with a tubular plug, the button switch is fixedly arranged on the inner wall of the plug, a tubular fixing sleeve is fixedly arranged on the outer wall of the connecting rod, and the plug is correspondingly inserted into the fixing sleeve.
As a preferred scheme, a gap is formed in the base, a rotating shaft penetrates through the gap between two oppositely-arranged side walls of the gap, and the movable plate is rotatably sleeved on the rotating shaft.
As a preferred scheme, the middle part of pivot is provided with the undergauge portion, the fly leaf includes that the interactive cover is established epaxial sleeve pipe is changeed, sleeve pipe fixedly connected with drive piece and driven piece, drive piece stretch into in the main entrance, the driven piece is followed the through-hole stretches out, and the width of drive piece is greater than the width of driven piece.
Has the advantages that: the invention can accurately control the insertion position of the puncture needle, thereby protecting the patient and avoiding the damage of the position deviation of the puncture needle to the patient; the outer needle body 1 and the inner needle body 2 are tightly attached, so that the body tissues of a patient can be squeezed open together in the insertion process, and the blockage is avoided; the outer needle body 1 and the inner needle body 2 only need to be inserted once, and the injury to a patient for many times can be avoided.
Drawings
FIG. 1 is a schematic view of the structure of the needle;
FIG. 2 is a schematic view of the mounting sleeve and handle configuration;
FIG. 3 is a schematic view of a drainage mechanism;
FIG. 4 is a schematic view of the construction of the connector;
FIG. 5 is a schematic view of the arrangement of the adhesive and the plastic tab;
FIG. 6 is an enlarged view of a portion of FIG. 3;
FIG. 7 is a schematic view of the structure of the base;
fig. 8 is a schematic structural view of the movable piece.
Reference numerals: 1-outer needle body, 2-inner needle body, 3-guide tube, 4-fixing piece, 5-sealing piece, 6-preposed drainage tube, 7-medicament input tube, 8-mounting sleeve, 9-scale, 10-handle, 11-dent part, 12-pushing block, 13-mounting seat, 14-connecting rod, 15-side channel, 16-liquid output tube, 17-movable plate, 18-through hole, 19-postposition drainage tube, 20-fixing sleeve, 21-plug, 22-button switch, 23-connecting tube, 24-pump, 25-draft tube, 26-liquid storage tank, 27-spacing ring, 28-soft clamping piece, 29-adhesive tape, 30-plastic sheet, 31-soft sealing film, 32-base, 33-rotating shaft, 34-notch, 35-reducing part, 36-driving sheet, 37-sleeve and 38-driven sheet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, a pericardial puncture fluid-extracting device for cardiology comprises a puncture needle, a positioning mechanism, an aspirator and a drug delivery device.
The infusion needle comprises an inner needle body 2 and an outer needle body 1 sleeved on the periphery of the inner needle body 2, the inner diameter of the outer needle body 1 is larger than the outer diameter of the inner needle body 2, the inner needle body 2 is attached to the inner wall of the outer needle body 1, a fixing part 4 is fixedly arranged in the outer needle body 1 close to the tail end, the inner needle body 2 penetrates through the fixing part 4, and the rear part of the outer needle body 1 is communicated with a guide pipe 3 and a pushing block 12.
The positioning mechanism comprises an installation sleeve 8, a sliding groove is formed in the installation sleeve 8, the outer needle body 1 is arranged in the sliding groove in a sliding mode, and scales 9 are arranged on the outer wall of the sliding groove.
The suction machine is communicated with the guide pipe 3.
The drug delivery device is in communication with the inner needle body 2 via a drug inlet tube 7.
When the device is used, the puncture needle is firstly inserted into a target position in pericardial effusion, the mounting sleeve 8 is held by hand and the pushing block 12 is moved by a thumb to drive the outer needle body 1 to move in the inserting process, because the outer needle body 1 and the inner needle body 2 are fixedly connected through the fixing piece 4, the outer needle body 1 can drive the inner needle body 2 to move synchronously, the moving distance of the pushing block 12 can be determined by means of the scale 9, so that the moving distance of the puncture needle is determined, the position of the puncture needle is accurately controlled, and the damage to a patient is avoided; then, the medicine conveying device is used for conveying the medicine to the target position through the medicine input tube 7 and the inner needle body 2 in sequence, the medicine can be flexibly selected according to actual requirements, such as local anesthetic, the selection of the medicine does not influence the invention, the description is omitted, and the medicine conveying device is closed after the medicine conveying is closed so as to seal the medicine input tube 7; afterwards take out the hydrops from the target site through the suction machine, the hydrops loops through outer needle body 1 and leads to pipe 3 and flow into the suction machine in, because there is inner needle body 2 to exist, so partial hydrops can enter into inner needle body 2, but because medicine input tube 7 has been sealed, so can not exert an influence, this partial hydrops is detained in inner needle body 2 can.
By adopting the invention, the insertion position of the puncture needle can be accurately controlled, so that the patient is protected, and the damage to the patient caused by the position deviation of the puncture needle is avoided; the outer needle body 1 and the inner needle body 2 are tightly attached, so that the body tissues of a patient can be squeezed open together in the insertion process, and the blockage is avoided; the outer needle body 1 and the inner needle body 2 only need to be inserted once, and the injury to a patient for many times can be avoided.
It should be noted that the tip of the inner needle body 2 cannot extend out from the outer needle body 1, and the suction machine is a common device in the art and will not be described herein.
Further, a sealing member 5 is disposed between the fixing member 4 and the end of the outer needle body 1, and the inner needle body 2 passes through the sealing member 5.
The suction machine is communicated with the guide pipe 3 through a drainage mechanism. The sealing part 5 is used for further improving the sealing performance between the inner needle body 2 and the outer needle body 1 and avoiding effusion from a gap between the inner needle body 2 and the outer needle body 1.
Further, in order to facilitate holding the mounting sleeve 8, the mounting sleeve 8 is further fixedly connected with a handle 10, and a plurality of concave portions 11 for accommodating fingers are arranged on the handle 10. When the novel multifunctional electric heating cooker is used, the handle 10 is held by the palm, the thumb is pressed against the pushing block 12, and the rest fingers are placed in the concave part 11, so that the novel multifunctional electric heating cooker is convenient and comfortable.
Further, the drainage mechanism comprises a connecting rod 14, a main channel extending along the length direction is formed in the middle of the connecting rod 14, one end of the main channel is communicated with a front drainage tube 6, the front drainage tube 6 is communicated with the guide tube 3, the other end of the main channel is communicated with a rear drainage tube 19, the rear drainage tube 19 is communicated with the suction machine, one end of the main channel close to the front drainage tube 6 is communicated with a side channel 15, the side channel 15 penetrates through the outer wall of the connecting rod 14 and inclines towards the front drainage tube 6, the side channel 15 is communicated with a pump 24 through a liquid output tube 16, and the pump 24 is communicated with a liquid storage tank 26 through a guide tube 25.
When the drainage mechanism is used, the connecting rod 14 is fixed on the body surface of a patient, the specific fixing mode can adopt medical adhesive tape bonding and the like, then the rear drainage tube 19 is connected to the aspirator, and effusion is extracted by the aspirator. After the effusion flows out of the body of the patient, the effusion flows through the front drainage tube 6, the main channel and the rear drainage tube 19 in sequence, during the flowing process, because a plurality of impurities exist in the effusion, the effusion can cause blockage, at the moment, the liquid in the liquid storage tank 26 is conveyed into the side channel 15 through the guide tube 25 and the liquid output tube 16 by the pump 24, because the side channel 15 is obliquely arranged, the inflow end of the side channel 15 is close to the front drainage tube 6, the outflow end of the side channel 15 is close to the rear drainage tube 19, the liquid flowing into the side channel 15 can flow towards the rear drainage tube 19 after entering the main channel, and by means of the output pressure of the pump 24, the part of the liquid can have higher pressure, so that the blocked impurities are flushed away, and the normal flowing of the effusion is ensured. In addition, since the front draft tube 6 cannot be washed by the liquid, it is necessary to make the front draft tube 6 as short as possible, so that even if the front draft tube 6 cannot be washed, the impurities in the front draft tube 6 are extracted by the bernoulli principle when the flow velocity in the main passage is increased.
Through the drainage mechanism, the smoothness of the hydrops drainage process can be ensured, the blockage of a drainage channel is avoided, and the treatment effect is ensured. It should be noted that the matched aspirator is a conventional device in the field, and therefore the structure and the working principle thereof are not described in detail, the liquid in the liquid storage tank 26 can be pure water, and the pure water can be used for reducing the cost without adding medicines because the liquid only serves the purpose of flushing the main channel and the rear drainage tube 1.
Further, the connecting rod 14 is connected with the preposed drainage tube 6, the postposition drainage tube 19 or the liquid output tube 16 through a connector, the connector comprises a conical mounting seat 13 fixedly connected with the connecting rod 14, a connecting channel is formed in the mounting seat 13 and communicated with the main channel or the side channel 15, a limiting ring 27 is fixedly arranged in the connecting channel, and the preposed drainage tube 6, the postposition drainage tube 19 or the liquid output tube 16 abuts against the limiting ring 27. The preposed drainage tube 6, the postposition drainage tube 19 or the liquid output tube 16 is inserted into the connecting channel and then abuts against the limiting ring 27 to complete the positioning, so as to avoid easy falling caused by too shallow insertion.
Further, a tubular soft clamping member 28 is fixedly connected to the limiting ring 27, the soft clamping member 28 faces the outer side of the connecting rod 14, a gap for accommodating the front drainage tube 6, the rear drainage tube 19 or the liquid outlet tube 16 is left between the outer wall of the soft clamping member 28 and the inner wall of the connecting channel, and the inner wall of the soft clamping member 28 is tapered and the small end faces the inner side of the connecting rod 14. In the preposed drainage tube 6 and the liquid output tube 16, the flowing directions of the accumulated liquid and the liquid in the body are from the outer side to the inner side of the connecting rod 14, therefore, in the two connectors corresponding to the preposed drainage tube 6 and the liquid output tube 16, the inner wall of the soft clamping piece 28 can be impacted, the impact force generates extrusion force towards the direction of the inner wall of the connecting channel on the conical inner wall, thereby pushing the soft clamping piece 28 to move towards the inner wall of the connecting channel, and further, the preposed drainage tube 6 or the liquid output tube 16 is clamped by the soft clamping piece 28, and the connecting rod 14 is prevented from falling.
Further, an adhesive tape 29 is wound on the outer wall of the mounting seat 13, one end of the adhesive tape 29 is fixedly connected with the mounting seat 13, and the other end of the adhesive tape 29 is fixedly connected with a plastic sheet 30. The flexible clamping member 28 can fix the front-mounted drainage tube 6 and the liquid discharge tube 16, but for the rear-mounted drainage tube 19, since the direction of the mixed liquid of the effusion and the liquid flowing therein is from the inside to the outside of the connecting rod 14, it cannot directly impinge on the inner wall of the flexible clamping member 28 corresponding to the rear-mounted drainage tube 19, so that the stability of the rear-mounted drainage tube 19 cannot be ensured, at this time, the adhesive plaster 29 can be unwound and then wound on the rear-mounted drainage tube 19 to fix the rear-mounted drainage tube 19, and the plastic sheet 30 is used to conveniently unwind the adhesive plaster 29. The adhesive plaster 29 on the two connectors corresponding to the pre-drainage tube 6 and the fluid outlet tube 16 can be used to fix the connecting rod 14 to the body surface of the patient. In combination with the soft clamping member 28 and the adhesive tape 29, the connector can sufficiently secure the connecting rod 14, ensuring stable use of the present invention.
Furthermore, a flow velocity sensing assembly is arranged in a part of the main channel close to the rear drainage tube 19, the flow velocity sensing assembly is connected with a controller, and the controller is in control connection with the pump 24. The flow velocity sensing assembly comprises a through hole 18 formed in the connecting rod 14, the through hole 18 is perpendicular to the main channel, a base 32 is arranged in the through hole 18, the base 32 is rotatably connected with the movable plate 17, the movable plate 17 is perpendicular to the main channel and is connected with the inner wall of the through hole 18 through a soft sealing film 31, one end of the movable plate 17 extends into the main channel, the other end of the movable plate 17 extends out of the through hole 18, the controller is electrically connected with a button switch 22, the button switch 22 is arranged on the outer side of the connecting rod 14, and the button switch 22 is triggered or turned off in the moving process of the movable plate 17.
Although it can guarantee the smoothness nature to continuously carry liquid in the main entrance, but also can cause the mixed liquid volume of output to increase fast, lead to frequently changing the container that is used for holding internal hydrops, disturb other treatment links, and it is also unnecessary to wash away when not blockking up, can cause the waste, consequently, need set up velocity of flow response subassembly, utilize the velocity of flow as the foundation of judging whether blockking up, pump 24 starts when the velocity of flow is low and washes away, thereby reduce the consumption of liquid, reduce the change frequency of container.
After the drainage device is installed and started, the accumulated liquid in the body sequentially flows through the front drainage tube 6, the main channel and the rear drainage tube 19, the movable plate 17 is pushed to move in the main channel, the movable plate 17 triggers the button switch 22 in the moving process, the controller receives a signal triggered by the button switch 22 and then controls the pump 24 to enter a preparation state, when the accumulated liquid in the body is blocked, the flow rate is reduced, the movable plate 17 cannot keep the position at the moment, so that the movable plate leaves the button switch 22, the signal of the button switch 22 is interrupted, then the controller controls the pump 24 to operate, the liquid in the liquid storage tank 26 is conveyed into the main channel to be washed, the flow rate of the accumulated liquid in the body after the blockage is eliminated is accelerated, the movable plate 17 triggers the button switch 22 again, and. Soft sealing film 31 is used for guaranteeing the closure of through-hole 18 on the one hand, avoids the internal hydrops to flow out from through-hole 18, and on the other hand takes place deformation when being used for the relatively fast fly leaf 17 of the internal hydrops velocity of flow trigger button switch 22, recovers when the internal hydrops causes the velocity of flow to reduce because of blockking up to drive fly leaf 17 and button switch 22 separation. It should be noted that, after the liquid is delivered into the main channel by the pump 24, the flow rate is fast, so that the movable plate 17 triggers the button switch 22, and at this time, the pump 24 is suspended, so that in practice, the liquid delivered by the pump 24 once is limited, and when one-time flushing cannot solve the blockage, the movable plate 17 is separated from the button switch 22 again, so that the pump 24 is started again, that is, the flushing process is repeated many times, thereby further controlling the usage amount of the liquid, reducing the consumption of the liquid, and reducing the replacement frequency of the container.
Further, the controller is connected with a soft connecting pipe 13, the connecting pipe 13 is fixedly connected with a tubular plug 21, the button switch 22 is fixedly arranged on the inner wall of the plug 21, a tubular fixing sleeve 20 is fixedly arranged on the outer wall of the connecting rod 14, and the plug 21 is correspondingly inserted into the fixing sleeve 20. The connecting tube 13 is used for accommodating wires for connecting the button switch 22 and the controller, the button switch 22 can be quickly and accurately mounted in place through the matching of the plug 21 and the fixing sleeve 20, in order to further determine the position of the button switch 22, in other embodiments of the invention, a positioning bulge can be further arranged on the outer wall of the plug 21, and a positioning groove corresponding to the positioning bulge is arranged on the inner wall of the fixing sleeve 20.
Further, a gap 34 is formed in the base 32, a rotating shaft 33 penetrates between two opposite side walls of the gap 34, and the movable plate 17 is rotatably sleeved on the rotating shaft 33. The position of the movable plate 17 is limited by the rotating shaft 33, so that the movable plate 17 can be always perpendicular to the main channel, and a proper function is achieved.
Furthermore, a diameter reducing portion 35 is arranged in the middle of the rotating shaft 33, the movable plate 17 comprises a sleeve 37 which is interactively sleeved on the rotating shaft 33, the sleeve 37 is fixedly connected with a driving plate 36 and a driven plate 38, the driving plate 36 extends into the main channel, the driven plate 38 extends out of the through hole 18, and the width of the driving plate 36 is larger than that of the driven plate 38. The area of the driving plate 36 is larger than that of the driven plate 38, so that the driving plate 36 can better sense the flow rate of the effusion in the body and the driven plate 38 is flexible enough.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a intracardiac package puncture draw liquid device for intracardiac branch of academic or vocational study which characterized in that: comprises a puncture needle, a positioning mechanism, an aspirator and a drug delivery device;
the infusion needle comprises an inner needle body (2) and an outer needle body (1) sleeved on the periphery of the inner needle body (2), the inner diameter of the outer needle body (1) is larger than the outer diameter of the inner needle body (2), the inner needle body (2) is attached to the inner wall of the outer needle body (1), a fixing piece (4) is fixedly arranged in the outer needle body (1) close to the tail end, the inner needle body (2) penetrates through the fixing piece (4), and the rear part of the outer needle body (1) is communicated with a guide tube (3) and a pushing block (12);
the positioning mechanism comprises an installation sleeve (8), a sliding groove is formed in the installation sleeve (8), the outer needle body (1) is arranged in the sliding groove in a sliding mode, and scales (9) are arranged on the outer wall of the sliding groove;
the suction machine is communicated with the guide pipe (3);
the medicine conveying device is communicated with the inner needle body (2) through a medicine input pipe (7).
2. The intracardiac puncture fluid extraction device according to claim 1, characterized in that: a sealing piece (5) is arranged between the fixing piece (4) and the tail end of the outer needle body (1), and the inner needle body (2) penetrates through the sealing piece (5).
3. The intracardiac puncture fluid extraction device according to claim 1, characterized in that: the suction machine is communicated with the guide pipe (3) through a drainage mechanism;
the drainage mechanism comprises a connecting rod (14), a main channel extending along the length direction is formed in the middle of the connecting rod (14), one end of the main channel is communicated with a front drainage tube (6), the front drainage tube (6) is communicated with the guide tube (3), the other end of the main channel is communicated with a rear drainage tube (19), the rear drainage tube (19) is communicated with the suction machine, one end of the main channel, close to the front drainage tube (6), is communicated with a side channel (15), the side channel (15) penetrates through the outer wall of the connecting rod (14) and inclines towards the front drainage tube (6), the side channel (15) is communicated with a pump (24) through a liquid outlet pipe (16), and the pump (24) is communicated with a liquid storage tank (26) through a guide pipe (25).
4. A pericardial puncture fluid-drawing device for cardiology department according to claim 3 wherein: the connecting rod (14) is connected with the preposed drainage tube (6), the postposition drainage tube (19) or the liquid output tube (16) through a connector, the connector comprises a conical mounting seat (13) fixedly connected with the connecting rod (14), a connecting channel is formed in the mounting seat (13), the connecting channel is communicated with the main channel or the side channel (15), a limiting ring (27) is fixedly arranged in the connecting channel, and the preposed drainage tube (6), the postposition drainage tube (19) or the liquid output tube (16) abuts against the limiting ring (27).
5. The intracardiac puncture fluid extraction device according to claim 4, characterized in that: the limiting ring (27) is fixedly connected with a tubular soft clamping piece (28), the soft clamping piece (28) faces the outer side of the connecting rod (14), a gap for accommodating the front drainage tube (6), the rear drainage tube (19) or the liquid output tube (16) is reserved between the outer wall of the soft clamping piece (28) and the inner wall of the connecting channel, and the inner wall of the soft clamping piece (28) is conical and the small end faces the inner side of the connecting rod (14).
6. The intracardiac puncture fluid extraction device according to claim 4, characterized in that: an adhesive tape (29) is wound on the outer wall of the mounting seat (13), one end of the adhesive tape (29) is fixedly connected with the mounting seat (13), and the other end of the adhesive tape (29) is fixedly connected with a plastic sheet (30).
7. A pericardial puncture fluid-drawing device for cardiology department according to claim 3 wherein: a flow velocity sensing assembly is arranged in a part, close to the rear drainage tube (19), of the main channel, the flow velocity sensing assembly is connected with a controller, and the controller is in control connection with the pump (24);
the flow velocity sensing assembly comprises a through hole (18) formed in the connecting rod (14), the through hole (18) is perpendicular to the main channel, a base (32) is arranged in the through hole (18), the base (32) is rotatably connected with a movable plate (17), the movable plate (17) is perpendicular to the main channel and is connected with the inner wall of the through hole (18) through a soft sealing film (31), one end of the movable plate (17) extends into the main channel, the other end of the movable plate (17) extends out of the through hole (18), the controller is electrically connected with a button switch (22), the button switch (22) is arranged on the outer side of the connecting rod (14), and the movable plate (17) triggers or turns off the button switch (22) in the moving process.
8. The intracardiac puncture fluid extraction device according to claim 7, characterized in that: the controller is connected with soft connecting pipe (13), and connecting pipe (13) fixedly connected with pipy plug (21), button switch (22) are fixed to be set up the inner wall at plug (21), fixed cover (20) of pipy that are provided with on the outer wall of connecting rod (14), plug (21) correspond and insert in fixed cover (20).
9. The intracardiac puncture fluid extraction device according to claim 7, characterized in that: a gap (34) is formed in the base (32), a rotating shaft (33) penetrates through the gap (34) between the two oppositely arranged side walls, and the movable plate (17) is rotatably sleeved on the rotating shaft (33).
10. The intracardiac puncture fluid extraction device according to claim 9, characterized in that: the middle part of pivot (33) is provided with undergauge portion (35), fly leaf (17) are established including interactive cover sleeve pipe (37) on pivot (33), sleeve pipe (37) fixedly connected with drive piece (36) and driven piece (38), drive piece (36) stretch into in the main entrance, driven piece (38) are followed through-hole (18) stretch out, and the width of drive piece (36) is greater than the width of driven piece (38).
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| CN201911270857.4A CN110897687B (en) | 2019-12-12 | 2019-12-12 | Pericardium puncture liquid pumping device for department of cardiology |
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| CN201911270857.4A CN110897687B (en) | 2019-12-12 | 2019-12-12 | Pericardium puncture liquid pumping device for department of cardiology |
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| CN110897687B CN110897687B (en) | 2023-09-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114533214A (en) * | 2021-12-23 | 2022-05-27 | 中国人民解放军第三〇五医院 | Be used for intracardiac branch of academic or vocational study puncture positioner |
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| CN110897687B (en) | 2023-09-22 |
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