CN110946637B - Puncture needle for pediatric clinic - Google Patents
Puncture needle for pediatric clinic Download PDFInfo
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- CN110946637B CN110946637B CN201911331703.1A CN201911331703A CN110946637B CN 110946637 B CN110946637 B CN 110946637B CN 201911331703 A CN201911331703 A CN 201911331703A CN 110946637 B CN110946637 B CN 110946637B
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- 238000007789 sealing Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000002349 favourable effect Effects 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 3
- 239000003814 drug Substances 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 210000004185 liver Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 238000001574 biopsy Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 238000001990 intravenous administration Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 210000005075 mammary gland Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 210000001672 ovary Anatomy 0.000 description 1
- 210000000496 pancreas Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 210000002307 prostate Anatomy 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 210000001550 testis Anatomy 0.000 description 1
- 210000001685 thyroid gland Anatomy 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 210000004291 uterus Anatomy 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to the technical field of puncture needle application, in particular to a puncture needle for pediatrics, which comprises a connecting mechanism, an adjusting mechanism and a protecting mechanism, wherein the connecting mechanism is arranged on the connecting mechanism; the pipe body is in threaded connection with the connecting pipe, so that the pipe body and the connecting pipe are convenient to disassemble, and the convenience in cleaning is improved; the outer wall of the connecting pipe is sleeved with the sleeve shaft, and the sleeve shaft and the connecting pipe are in sliding connection with the adjusting rod, so that the position of the adjusting rod is convenient to adjust, and the puncture depth of the needle head is favorably adjusted; the utility model discloses a syringe needle, including connecting plate lateral wall and fixed plate, fixed plate top is passed through second spring and fly leaf fixed connection, the connecting plate lateral wall rotates with the baffle middle part and is connected, and removal through adjusting the pole and the rotation of baffle are convenient protects the pointed end of syringe needle, avoid when using to shift because of the pointed end of syringe needle leads to the injured problem of personnel, are favorable to protecting the syringe needle.
Description
Technical Field
The invention relates to the technical field of puncture needle application, in particular to a puncture needle for pediatrics.
Background
The puncture needle is a medical apparatus for sampling and injection treatment of tissues of various organs such as kidney, liver, lung, mammary gland, thyroid gland, prostate gland, pancreas, testis, uterus, ovary, body surface and the like in minimally invasive surgery, the puncture needle used by modern doctors is developed on the basis of an intravenous infusion needle and an injection needle, the intravenous infusion and the theory thereof are rapidly developed along with the progress of metal processing technology and medicine, various needle types with different applications are rapidly derived, the puncture needle is only one tiny branch, even if the puncture needle is also dozens of different types, the structure is complicated, the puncture needle is precise and tiny, such as a cell puncture needle, the modern puncture needle tube generally adopts SUS304/316L medical stainless steel, the current puncture needle is a medical apparatus for tissue sampling and injection treatment, and the medical apparatus is generally divided into a biopsy puncture needle, an injection puncture needle, a biopsy needle, a, Drainage puncture needles, etc.
However, for the puncture needle for pediatrics, when liver surgery is performed on children, due to the fact that skin of the children is delicate, the puncture needles of different types need to be replaced when the liver surgery is performed, the puncture needle is not convenient to replace when in use, and meanwhile, due to the mobility of the children, the needle head of the puncture needle may fall off, the interior of the puncture needle is not convenient to clean, and secondary pollution is easily caused; the depth of the puncture needle can not be adjusted when the puncture needle is used, so that the working difficulty of operators is increased, and the patients are easily injured; and after the puncture is completed, the problem that personnel are scratched by the needle head easily when the needle head is transferred is solved, and the needle head is not protected easily.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a puncture needle for pediatrics.
The technical scheme adopted by the invention for solving the technical problems is as follows: a puncture needle for pediatrics comprises a tube body, a connecting tube, a connecting mechanism, an adjusting mechanism for adjusting the depth of the puncture needle and a protecting mechanism for protecting a needle head of the puncture needle; the pipe body is connected with the connecting pipe through a threaded connection mechanism, the side end of the connecting pipe is fixedly connected with a joint, the side wall of the connecting pipe is fixedly connected with the sealing ring, the pipe body is in penetrating connection with the piston rod, two ends of the piston rod are respectively fixedly connected with the piston and the piston handle, and the outer wall of the pipe body is fixedly connected with the limiting rod; the adjusting mechanism comprises a sleeve shaft and an adjusting rod, the outer wall of the connecting pipe is sleeved with the sleeve shaft, the sleeve shaft and the connecting pipe are connected with the adjusting rod in a sliding mode, the top of the sleeve shaft is connected with a clamping rod in a penetrating mode, the end portion of the clamping rod is fixedly connected with the pressing plate, and the pressing plate is fixedly connected with the sleeve shaft through a first spring; the protection mechanism comprises a connecting plate and a fixing plate, the end part of the adjusting rod is fixedly connected with the connecting plate, the side wall of the connecting plate is fixedly connected with the fixing plate, the top of the fixing plate is fixedly connected with the movable plate through a second spring, and the side wall of the connecting plate is rotatably connected with the middle of the baffle plate.
Specifically, the joint is sleeved with the interior of a needle tube, the needle tube is fixedly connected with a needle head, and the needle tube is in contact with a sealing ring in a circular structure; a corrugated pipe is arranged between the needle tube and the connecting plate.
Specifically, body outer wall and two gag lever post fixed connection, two the gag lever post all is L shape structure, two the gag lever post top surface all is the slope structure, and two the tip contact of gag lever post has the needle tubing.
Specifically, inside and piston seal sliding connection of body and connecting pipe, sealing connection between body and the connecting pipe, just the circular-arc recess that is used for the kelly joint is seted up to the connecting pipe surface.
Specifically, the sleeve shaft is the ring form structure, the sleeve shaft both ends respectively with four kelly sliding connection, per two kelly tip all with clamp plate fixed connection, the sleeve shaft inner wall contact has the slope top surface of gag lever post, and every the kelly all cup joints with first spring.
The needle adjusting device comprises an adjusting rod, clamping rods, clamping blocks, clamping rods, a connecting plate and a connecting plate, wherein the clamping blocks are uniformly distributed on two sides of the adjusting rod, the adjusting rod is located between the two clamping rods, the clamping blocks on the adjusting rod are clamped with the clamping rods, the number of the adjusting rods is two, the adjusting rods are located at two ends of the connecting plate respectively, and a through hole used for moving a needle head is formed in the middle of the connecting plate.
Specifically, the fixed plate is L shape structure, the through-hole that is used for the needle tubing to remove is offered at the fixed plate middle part, just fixed plate top and two second spring fixed connection, the opening that is used for the baffle joint is offered at fly leaf bottom middle part, just sliding connection between fly leaf and fixed plate and the connecting plate, the baffle middle part rotates with the connecting plate to be connected, the contact of baffle tip has the bottom surface of fly leaf, just baffle tip area is greater than the through-hole at connecting plate and fixed plate middle part.
The invention has the beneficial effects that:
(1) the invention has simple structure and convenient operation, the tube body and the connecting tube are convenient to design and clean the inside of the tube body, the problem that stains can not be completely cleaned easily during cleaning is solved, the repeated utilization of the puncture needle head is facilitated, the limitation of the needle tube is facilitated through the elastic deformation of the limiting plate, and the problem that the needle tube falls off during use is avoided.
(2) The position of the fixing plate can be conveniently adjusted through the movement of the adjusting rod, the puncture depth of the needle head during puncture can be conveniently adjusted, the operation difficulty of operators can be reduced, the problem that a patient is injured due to too deep puncture is avoided, the tip of the needle head can be conveniently protected through the movement of the adjusting rod and the rotation of the baffle, the problem that the personnel are injured due to the tip of the needle head during transfer after use is avoided, the needle head can be protected, the corrugated pipe can fix the needle tube and the connector, and the falling between the needle tube and the connecting pipe can be effectively prevented due to the good movement of children in the puncture process; simultaneously, the bellows is hollow structure for half circular cone shape and middle part, is favorable to running through of syringe needle and conflict to the needle tubing, and further can prevent to appear pulling off of joint and needle tubing in the syringe needle process of pulling out.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of an overall perspective structure of a pediatric clinical puncture needle according to the present invention;
FIG. 2 is a schematic view of the internal structure of a pediatric clinical puncture needle according to the present invention;
FIG. 3 is a front elevational view of the pediatric clinical needle of the present invention as illustrated in FIG. 2;
FIG. 4 is a cross-sectional view A-A of the pediatric clinical needle of the present invention as shown in FIG. 3;
FIG. 5 is a schematic diagram of a side view of a connection plate of the pediatric clinical puncture needle according to the present invention;
fig. 6 is a schematic top view of an adjusting rod of the pediatric clinical puncture needle according to the present invention.
In the figure: 1. the device comprises a pipe body, 2, a connecting pipe, 3, a joint, 4, a piston rod, 5, a piston, 6, a piston handle, 7, a needle tube, 8, a needle head, 9, a sealing ring, 10, a limiting rod, 11, a sleeve shaft, 12, a clamping rod, 13, a pressing plate, 14, a first spring, 15, an adjusting rod, 16, a connecting plate, 17, a fixing plate, 18, a second spring, 19, a movable plate, 20, a baffle, 21 and a corrugated pipe.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the puncture needle for pediatrics of the present invention comprises a tube body 1, a connecting tube 2, a connecting mechanism, an adjusting mechanism for adjusting the depth of the puncture needle, and a protecting mechanism for protecting the needle head of the puncture needle; the tube body 1 is connected with the connecting tube 2 through a threaded connection mechanism, the side end of the connecting tube 2 is fixedly connected with the joint 3, the side wall of the connecting tube 2 is fixedly connected with the sealing ring 9 and used for sealing between the needle tube 7 and the connecting tube 2, the tube body 1 is in penetrating connection with the piston rod 4, two ends of the piston rod 4 are respectively fixedly connected with the piston 5 and the piston handle 6, and the outer wall of the tube body 1 is fixedly connected with the limiting rod 10; the adjusting mechanism comprises a sleeve shaft 11 and an adjusting rod 15, the outer wall of the connecting pipe 2 is sleeved with the sleeve shaft 11, the sleeve shaft 11 is connected with the connecting pipe 2 in a sliding mode through the adjusting rod 15, the top of the sleeve shaft 11 is connected with a clamping rod 12 in a penetrating mode, the end portion of the clamping rod 12 is fixedly connected with a pressing plate 13 and used for limiting the adjusting rod 15, and the pressing plate 13 is fixedly connected with the sleeve shaft 11 through a first spring 14; protection machanism includes connecting plate 16 and fixed plate 17, adjust pole 15 tip and connecting plate 16 fixed connection, connecting plate 16 lateral wall and fixed plate 17 fixed connection, just fixed plate 17 top is passed through second spring 18 and is connected with fly leaf 19, connecting plate 16 lateral wall rotates with baffle 20 middle part and is connected, through rotating baffle 20 between connecting plate 16 and the fixed plate 17, make baffle 20 promote fly leaf 19, make fly leaf 19 vertical movement between connecting plate 16 and fixed plate 17, make second spring 18 compress the back, baffle 20 rotates when to vertical position, make baffle 20 joint to the opening part that fly leaf 19 bottom was seted up, and then protect the most advanced of syringe needle 8, take place the fish tail problem when avoiding shifting the pjncture needle, and simultaneously, be favorable to extracting the syringe needle, the convenience is punctured children.
Specifically, the joint 3 is sleeved with the inside of a needle tube 7, the needle tube 7 is fixedly connected with a needle 8, the needle tube 7 is in contact with a sealing ring 9 in a circular ring structure, a corrugated tube 21 is arranged between the needle tube 7 and the connecting plate 16, and the needle tube 7 and the connecting tube 2 are effectively prevented from falling off due to the arrangement of the corrugated tube 21; simultaneously, bellows 21 is half circular cone shape and middle part is hollow structure, is favorable to running through of syringe needle 8 and to the conflict of needle tubing 7, and the connection of the needle tubing 7 of being convenient for is convenient to be connected between needle tubing 7 and connecting pipe 2.
Specifically, 1 outer wall of body and two gag lever post 10 fixed connection, two gag lever post 10 all is L shape structure, two gag lever post 10 top surface all is the slope structure, and two the tip contact of gag lever post 10 has needle tubing 7, and gag lever post 10 is the elastic material preparation, through removing sleeve 11 for the top surface of the inner wall contact gag lever post 10 of sleeve 11, because of the slope design of gag lever post 10 top surface, make sleeve 11 promote gag lever post 10 when removing and take place elastic deformation, make gag lever post 10 rotate the back, carry out spacingly with needle tubing 7 through its tip, avoid taking place the problem that needle tubing 7 drops when using, simultaneously, be favorable to realizing the secondary fixed to body 1 and connecting pipe 2.
Specifically, body 1 and 2 inside and 5 sealed sliding connection of piston of connecting pipe, sealing connection between body 1 and the connecting pipe 2, just 2 surfaces of connecting pipe offer the circular-arc recess that is used for the 12 joints of kelly, and the body of being convenient for is connected between 1 and the connecting pipe 2, and the convenience is to connecting pipe 2 and the slip of adjusting between the pole 15 when using, adjusts the length of syringe needle 8.
Specifically, sleeve 11 is the ring form structure, 11 both ends of sleeve respectively with four kelly 12 sliding connection, per two 12 tip of kelly all with clamp plate 13 fixed connection, 11 inner wall contacts of sleeve 11 have the slope top surface of gag lever post 10, and every the kelly 12 all cup joints with first spring 14, the removal of 11 sleeve of being convenient for, conveniently promotes gag lever post 10 elastic deformation back and rotates.
It is specific, adjust pole 15 both sides evenly distributed and have the fixture block, it is located between two kelly 12 to adjust pole 15, just fixture block and kelly 12 joint on adjusting pole 15 are convenient for adjust the spacing of pole 15, conveniently adjust the position of fixed plate 17, the quantity of adjusting pole 15 is two, two adjust pole 15 and be located the both ends of connecting plate 16 respectively, just the through-hole that is used for syringe needle 8 to remove is offered at the connecting plate 16 middle part, is convenient for adjust the removal of pole 15, conveniently drives connecting plate 16 and removes simultaneously, conveniently realizes after accomplishing the puncture operation that syringe needle 8 breaks away from the puncture position, simultaneously, is favorable to preventing that the syringe needle from scratching the people.
Specifically, the fixed plate 17 is of an L-shaped structure, the middle of the fixed plate 17 is provided with a through hole for movement of the needle tube 7, the top of the fixed plate 17 is fixedly connected with the two second springs 18, so that the fixed plate 17 can be fixed conveniently, the puncture depth of the needle 8 can be conveniently adjusted, the movable plate 19 is of an arc-shaped structure, the middle of the bottom end of the movable plate 19 is provided with an opening for clamping the baffle plate 20, the movable plate 19 is slidably connected with the fixed plate 17 and the connecting plate 16, so that the movable plate 19 can be moved conveniently, the baffle plate 20 can be conveniently limited, the middle of the baffle plate 20 is rotatably connected with the connecting plate 16, the end of the baffle plate 20 is in contact with the bottom surface of the movable plate 19, the end area of the baffle plate 20 is larger than the through hole in the middle of the connecting plate 16 and the fixed plate, make fly leaf 19 vertical removal between connecting plate 16 and fixed plate 17 for after second spring 18 compresses, when baffle 20 rotated to vertical position, make baffle 20 joint to the opening part that fly leaf 19 bottom was seted up, and then protect the most advanced rotation of the baffle 20 of being convenient for of syringe needle 8, conveniently protect the most advanced of syringe needle 8.
When the puncture needle is used, before a puncture operation is performed by a child, the puncture needle is processed, the pipe body 1 and the connecting pipe 2 are opened, the interiors of the pipe body 1 and the connecting pipe 2 are cleaned and disinfected, the cleaning effect is improved, after the disinfection is completed, the connecting pipe 2 is screwed tightly at the end part of the pipe body 1, the sleeve shaft 11 is sleeved on the connecting pipe 2, the clamp plate 13 is pulled, the clamp rod 12 is driven by the movement of the clamp plate 13 to move vertically upwards, the first spring 14 is stretched, the adjusting rod 15 is inserted between the connecting pipe 2 and the sleeve shaft 11, the adjusting rod 15 drives the connecting plate 16 to move simultaneously, the position of the fixing plate 17 on the connecting plate 16 is convenient to adjust, after the adjustment is completed, the clamp plate 13 is pulled by the first spring 14 in a stretching state to move vertically, the sleeve shaft 11 is manually driven to move leftwards and rightwards, the clamp plate 13 is loosened, and the clamp plate 13 is clamped on the adjusting rod 15 after the clamp rod 12 is driven by the clamp plate 13 to move, further limiting the adjusting rod 15; after the adjustment is completed, the limiting rod 10 is made of elastic material, the inner wall of the sleeve shaft 11 is contacted with the top surface of the limiting rod 10 by moving the sleeve shaft 11, the sleeve shaft 11 pushes the limiting rod 10 to generate elastic deformation when moving due to the inclined design of the top surface of the limiting rod 10, the needle tube 7 is limited by the end part of the limiting rod 10 after the limiting rod 10 rotates, the problem that the needle tube 7 falls off when in use is avoided, meanwhile, secondary fixation of the tube body 1 and the connecting tube 2 is facilitated, the corrugated tube 21 is extruded leftwards after the position of the tube body 1 is adjusted, the clean needle tube 7 is sleeved on the joint 3, the needle tube 7 is clamped with the joint 3, the right end of the corrugated tube 21 is abutted against the left end of the needle tube 7, the needle 8 penetrates through the corrugated tube 21, the fixation of the needle tube 7 and the joint 3 is completed, and during the puncture process, because a child is good, the corrugated tube 21 is arranged, the falling-off between the needle tube 7 and the connecting tube 2 is effectively prevented; meanwhile, the corrugated pipe 21 is in a semi-conical shape, and the middle part of the corrugated pipe is in a hollow structure, so that the penetration of the needle 8 and the collision of the needle 7 are facilitated; after the installation is finished, the needle 8 is inserted into a medicine bottle for treatment, the piston handle 6 is pulled to drive the piston rod 4 to move, the piston rod 4 drives the piston 5 to be pulled from left to right, the medicine to be treated is sucked into the connecting pipe 2 from the needle 8, the needle 8 positioned on the left side of the fixed plate 17 is punctured during a puncturing operation, the puncturing depth can be conveniently adjusted according to actual requirements, the patient is prevented from being injured, when the puncturing depth is reached, the piston handle 6 is slowly pushed at a constant speed to drive the piston rod 4 and the piston 5 to simultaneously move, the liquid medicine in the pipe body 1 and the connecting pipe 2 is injected by the movement of the piston 5, the treatment is realized, after the puncturing is finished, the fixed plate 17 is pressed, the pressing plate 13 is pulled to drive the clamping rod 12 to be separated from the adjusting rod 15, the sleeve shaft 11 is moved to drive the connecting pipe 2 to move with the fixed plate 17, until syringe needle 8 removes the inside of fixed plate 17, loosen clamp plate 13 again, make clamp plate 13 drive kelly 12 and remove the back joint on adjusting pole 15, and then carry on spacingly to adjusting pole 15, baffle 20 between through rotation connecting plate 16 and fixed plate 17, make baffle 20 promote fly leaf 19, make fly leaf 19 vertical movement between connecting plate 16 and fixed plate 17, make behind the compression of second spring 18, baffle 20 rotates when to vertical position, make baffle 20 joint to the opening part that fly leaf 19 bottom was seted up, and then protect syringe needle 8's most advanced, take place the problem of fish tail when avoiding shifting the pjncture needle, and simultaneously, be favorable to extracting the syringe needle, the convenience is punctured children.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A puncture needle for pediatrics is characterized in that: comprises a tube body (1), a connecting tube (2), a connecting mechanism, an adjusting mechanism for adjusting the depth of a puncture needle and a protecting mechanism for protecting the needle head of the puncture needle; the pipe body (1) is connected with the connecting pipe (2) through a threaded connection mechanism, the side end of the connecting pipe (2) is fixedly connected with the joint (3), the side wall of the connecting pipe (2) is fixedly connected with the sealing ring (9), the pipe body (1) is in penetrating connection with the piston rod (4), two ends of the piston rod (4) are respectively fixedly connected with the piston (5) and the piston handle (6), and the outer wall of the pipe body (1) is fixedly connected with the limiting rod (10); the adjusting mechanism comprises a sleeve shaft (11) and an adjusting rod (15), the outer wall of the connecting pipe (2) is sleeved with the sleeve shaft (11), the sleeve shaft (11) and the connecting pipe (2) are connected with the adjusting rod (15) in a sliding mode, the top of the sleeve shaft (11) is connected with a clamping rod (12) in a penetrating mode, the end portion of the clamping rod (12) is fixedly connected with a pressing plate (13), and the pressing plate (13) is fixedly connected with the sleeve shaft (11) through a first spring (14); the protection mechanism comprises a connecting plate (16) and a fixed plate (17), the end part of the adjusting rod (15) is fixedly connected with the connecting plate (16), the side wall of the connecting plate (16) is fixedly connected with the fixed plate (17), the top of the fixed plate (17) is connected with a movable plate (19) through a second spring (18), and the side wall of the connecting plate (16) is rotatably connected with the middle part of the baffle plate (20);
the fixing plate (17) is of an L-shaped structure, a through hole used for moving the needle tube (7) is formed in the middle of the fixing plate (17), and the top of the fixing plate (17) is fixedly connected with two second springs (18); the movable plate (19) is of an arc-shaped structure, an opening for clamping and connecting the baffle (20) is formed in the middle of the bottom end of the movable plate (19), and the movable plate (19) is connected with the fixed plate (17) and the connecting plate (16) in a sliding mode; the middle part of the baffle (20) is rotationally connected with the connecting plate (16), the end part of the baffle (20) is contacted with the bottom surface of the movable plate (19), and the area of the end part of the baffle (20) is larger than the through holes in the middle parts of the connecting plate (16) and the fixed plate (17).
2. A pediatric clinical puncture needle according to claim 1, wherein: the connector (3) is sleeved with the interior of a needle tube (7), the needle tube (7) is fixedly connected with a needle head (8), and the needle tube (7) is in contact with a sealing ring (9) in a circular ring structure; a corrugated pipe (21) is arranged between the needle tube (7) and the connecting plate (16).
3. A pediatric clinical puncture needle according to claim 1, wherein: body (1) outer wall and two gag lever post (10) fixed connection, two gag lever post (10) all are L shape structure, two gag lever post (10) top surface all is the slope structure, and two the tip contact of gag lever post (10) has needle tubing (7).
4. A pediatric clinical puncture needle according to claim 1, wherein: body (1) and connecting pipe (2) are inside and piston (5) sealing sliding connection, sealing connection between body (1) and connecting pipe (2), just connecting pipe (2) surface offers the circular-arc recess that is used for kelly (12) joint.
5. A pediatric clinical puncture needle according to claim 1, wherein: sleeve shaft (11) are the ring form structure, sleeve shaft (11) both ends respectively with four kelly (12) sliding connection, per two kelly (12) tip all with clamp plate (13) fixed connection, sleeve shaft (11) inner wall contact has the slope top surface of gag lever post (10), and every kelly (12) all cup joint with first spring (14).
6. A pediatric clinical puncture needle according to claim 1, wherein: clamping blocks are uniformly distributed on two sides of the adjusting rod (15), the adjusting rod (15) is located between the two clamping rods (12), and the clamping blocks on the adjusting rod (15) are clamped with the clamping rods (12); the number of the adjusting rods (15) is two, the two adjusting rods (15) are respectively located at two ends of the connecting plate (16), and a through hole used for moving the needle head (8) is formed in the middle of the connecting plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911331703.1A CN110946637B (en) | 2019-12-21 | 2019-12-21 | Puncture needle for pediatric clinic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911331703.1A CN110946637B (en) | 2019-12-21 | 2019-12-21 | Puncture needle for pediatric clinic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110946637A CN110946637A (en) | 2020-04-03 |
| CN110946637B true CN110946637B (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911331703.1A Expired - Fee Related CN110946637B (en) | 2019-12-21 | 2019-12-21 | Puncture needle for pediatric clinic |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112057146B (en) * | 2020-09-28 | 2022-04-12 | 中国人民解放军空军军医大学 | Fixing device for puncture in anesthesia department |
| CN112754620B (en) * | 2021-01-08 | 2024-07-23 | 中国人民解放军联勤保障部队第九〇九医院 | Disposable varicose vein injection needle |
| CN113243939B (en) * | 2021-05-17 | 2022-11-22 | 焦淑静 | Clinical detection device of gynaecology and obstetrics's amniotic fluid sample |
| CN113952009B (en) * | 2021-12-23 | 2022-03-01 | 真健康（北京）医疗科技有限公司 | Targeted drug delivery needle clamping navigation device and targeted drug delivery treatment system |
| CN116597987B (en) * | 2023-07-13 | 2024-01-26 | 广州盛安医学检验有限公司 | Female lower genital tract microecology evaluation detection system based on big data |
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| CN206183741U (en) * | 2016-08-15 | 2017-05-24 | 于夕妍 | Transfusion rod for intensive care therapy with remote monitering system |
| CN206228691U (en) * | 2016-08-27 | 2017-06-09 | 杨霞 | A kind of Novel spider plant water support |
| CN206183760U (en) * | 2016-08-30 | 2017-05-24 | 李振振 | Blood transfusion device |
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