CN110946637A - Puncture needle for pediatric clinic - Google Patents

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

Puncture needle for pediatric clinic

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, 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 connecting structure comprises a pipe body and a connecting pipe, the pipe body is in threaded connection with the connecting pipe, the side end of the connecting pipe is fixedly connected with a joint, the side wall of the connecting pipe is fixedly connected with a sealing ring, the pipe body is in penetrating connection with a piston rod, two ends of the piston rod are respectively fixedly connected with a piston and a piston handle, and the outer wall of the pipe body is fixedly connected with a limiting rod; the adjusting mechanism comprises a connecting pipe, 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 an adjusting rod, 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.

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.

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 atube body 1, aconnecting 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 connecting structure comprises apipe body 1 and a connectingpipe 2, thepipe body 1 is in threaded connection with the connectingpipe 2, the side end of the connectingpipe 2 is fixedly connected with a joint 3, the side wall of the connectingpipe 2 is fixedly connected with asealing ring 9 and used for sealing between a needle tube 7 and the connectingpipe 2, thepipe body 1 is in penetrating connection with apiston rod 4, two ends of thepiston rod 4 are respectively and fixedly connected with a piston 5 and apiston handle 6, and the outer wall of thepipe body 1 is fixedly connected with alimiting rod 10; the adjusting mechanism comprises a connectingpipe 2, asleeve shaft 11 and an adjustingrod 15, the outer wall of the connectingpipe 2 is sleeved with thesleeve shaft 11, thesleeve shaft 11 is connected with the connectingpipe 2 in a sliding mode through the adjustingrod 15, the top of thesleeve shaft 11 is connected with aclamping rod 12 in a penetrating mode, the end portion of theclamping rod 12 is fixedly connected with apressing plate 13 and used for limiting the adjustingrod 15, and thepressing plate 13 is fixedly connected with thesleeve shaft 11 through afirst spring 14; protection machanism is including adjustingpole 15, connectingplate 16 andfixed plate 17, adjust 15 tip and connectingplate 16 fixed connection of pole, connectingplate 16 lateral wall and fixedplate 17 fixed connection, justfixed plate 17 top is passed throughsecond spring 18 and is connected withfly leaf 19, connectingplate 16 lateral wall rotates withbaffle 20 middle part and is connected, through rotatingbaffle 20 between connectingplate 16 and thefixed plate 17 forbaffle 20 promotesfly leaf 19, makesfly leaf 19 vertical migration between connectingplate 16 andfixed plate 17, makes behind the compression ofsecond spring 18, baffle 20 rotates when reaching vertical position, makesbaffle 20 joint to the opening part thatfly leaf 19 bottom was seted up, and then protectssyringe needle 8's most advanced, takes place the problem of fish tail when avoiding shifting the pjncture needle, simultaneously, is favorable to extracting the syringe needle, conveniently punctures children.

Specifically, the joint 3 is sleeved with the inside of a needle tube 7, the needle tube 7 is fixedly connected with aneedle 8, the needle tube 7 is in contact with asealing ring 9 in a circular ring structure, acorrugated tube 21 is arranged between the needle tube 7 and the connectingplate 16, and the needle tube 7 and the connectingtube 2 are effectively prevented from falling off due to the arrangement of thecorrugated tube 21; simultaneously,bellows 21 is half circular cone shape and middle part is hollow structure, is favorable to running through ofsyringe 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 connectingpipe 2.

Specifically, 1 outer wall of body and two gag lever post 10 fixed connection, twogag lever post 10 all is L shape structure, twogag lever post 10 top surface all is the slope structure, and two the tip contact ofgag lever post 10 has needle tubing 7, andgag lever post 10 is the elastic material preparation, through removingsleeve 11 for the top surface of the inner wall contactgag lever post 10 ofsleeve 11, because of the slope design ofgag lever post 10 top surface, makesleeve 11 promotegag 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 tobody 1 and connectingpipe 2.

Specifically,body 1 and 2 inside and 5 sealed sliding connection of piston of connecting pipe, sealing connection betweenbody 1 and the connectingpipe 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 connectingpipe 2, and the convenience is to connectingpipe 2 and the slip of adjusting between thepole 15 when using, adjusts the length ofsyringe 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 withclamp plate 13 fixed connection, 11 inner wall contacts ofsleeve 11 have the slope top surface ofgag lever post 10, and every thekelly 12 all cup joints withfirst 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, adjustpole 15 both sides evenly distributed and have the fixture block, it is located between twokelly 12 to adjustpole 15, just fixture block andkelly 12 joint on adjustingpole 15 are convenient for adjust the spacing ofpole 15, conveniently adjust the position offixed plate 17, the quantity of adjustingpole 15 is two, twoadjust pole 15 and be located the both ends of connectingplate 16 respectively, just the through-hole that is used forsyringe needle 8 to remove is offered at the connectingplate 16 middle part, is convenient for adjust the removal ofpole 15, conveniently drives connectingplate 16 and removes simultaneously, conveniently realizes after accomplishing the puncture operation thatsyringe needle 8 breaks away from the puncture position, simultaneously, is favorable to preventing that the syringe needle from scratching the people.

Specifically, thefixed plate 17 is of an L-shaped structure, the middle of thefixed plate 17 is provided with a through hole for movement of the needle tube 7, the top of thefixed plate 17 is fixedly connected with the twosecond springs 18, so that thefixed plate 17 can be fixed conveniently, the puncture depth of theneedle 8 can be conveniently adjusted, themovable plate 19 is of an arc-shaped structure, the middle of the bottom end of themovable plate 19 is provided with an opening for clamping thebaffle plate 20, themovable plate 19 is slidably connected with thefixed plate 17 and the connectingplate 16, so that themovable plate 19 can be moved conveniently, thebaffle plate 20 can be conveniently limited, the middle of thebaffle plate 20 is rotatably connected with the connectingplate 16, the end of thebaffle plate 20 is in contact with the bottom surface of themovable plate 19, the end area of thebaffle plate 20 is larger than the through hole in the middle of the connectingplate 16 and the fixed plate, makefly leaf 19 vertical removal between connectingplate 16 and fixedplate 17 for aftersecond spring 18 compresses, when baffle 20 rotated to vertical position, makebaffle 20 joint to the opening part thatfly leaf 19 bottom was seted up, and then protect the most advanced rotation of thebaffle 20 of being convenient for ofsyringe needle 8, conveniently protect the most advanced ofsyringe needle 8.

When the puncture needle is used, before a puncture operation is performed by a child, the puncture needle is processed, thepipe body 1 and the connectingpipe 2 are opened, the interiors of thepipe body 1 and the connectingpipe 2 are cleaned and disinfected, the cleaning effect is improved, after the disinfection is completed, the connectingpipe 2 is screwed tightly at the end part of thepipe body 1, thesleeve shaft 11 is sleeved on the connectingpipe 2, theclamp plate 13 is pulled, theclamp rod 12 is driven by the movement of theclamp plate 13 to move vertically upwards, thefirst spring 14 is stretched, the adjustingrod 15 is inserted between the connectingpipe 2 and thesleeve shaft 11, the adjustingrod 15 drives the connectingplate 16 to move simultaneously, the position of thefixing plate 17 on the connectingplate 16 is convenient to adjust, after the adjustment is completed, theclamp plate 13 is pulled by thefirst spring 14 in a stretching state to move vertically, thesleeve shaft 11 is manually driven to move leftwards and rightwards, theclamp plate 13 is loosened, further limiting the adjustingrod 15; after the adjustment is completed, thelimiting rod 10 is made of elastic material, the inner wall of thesleeve shaft 11 is contacted with the top surface of the limitingrod 10 by moving thesleeve shaft 11, thesleeve shaft 11 pushes the limitingrod 10 to generate elastic deformation when moving due to the inclined design of the top surface of thelimiting rod 10, the needle tube 7 is limited by the end part of thelimiting rod 10 after the limitingrod 10 rotates, the problem that the needle tube 7 falls off when in use is avoided, meanwhile, secondary fixation of thetube body 1 and the connectingtube 2 is facilitated, thecorrugated tube 21 is extruded leftwards after the position of thetube 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 thecorrugated tube 21 is abutted against the left end of the needle tube 7, theneedle 8 penetrates through thecorrugated 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, the falling-off between the needle tube 7 and the connectingtube 2 is effectively prevented; meanwhile, thecorrugated 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 theneedle 8 and the collision of the needle 7 are facilitated; after the installation is finished, theneedle 8 is inserted into a medicine bottle for treatment, thepiston handle 6 is pulled to drive thepiston rod 4 to move, thepiston rod 4 drives the piston 5 to be pulled from left to right, the medicine to be treated is sucked into the connectingpipe 2 from theneedle 8, theneedle 8 positioned on the left side of thefixed 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, thepiston handle 6 is slowly pushed at a constant speed to drive thepiston rod 4 and the piston 5 to simultaneously move, the liquid medicine in thepipe body 1 and the connectingpipe 2 is injected by the movement of the piston 5, the treatment is realized, after the puncturing is finished, thefixed plate 17 is pressed, thepressing plate 13 is pulled to drive theclamping rod 12 to be separated from the adjustingrod 15, thesleeve shaft 11 is moved to drive the connectingpipe 2 to move with thefixed plate 17, untilsyringe needle 8 removes the inside offixed plate 17, loosenclamp plate 13 again, makeclamp plate 13drive kelly 12 and remove the back joint on adjustingpole 15, and then carry on spacingly to adjustingpole 15, baffle 20 between throughrotation connecting plate 16 and fixedplate 17, makebaffle 20 promotefly leaf 19, makefly leaf 19 vertical movement between connectingplate 16 and fixedplate 17, make behind the compression ofsecond spring 18, baffle 20 rotates when to vertical position, makebaffle 20 joint to the opening part thatfly leaf 19 bottom was seted up, and then protectsyringe 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 (7)

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 connecting structure comprises a pipe body (1) and a connecting pipe (2), the pipe body (1) is in threaded connection with the connecting pipe (2), the side end of the connecting pipe (2) is fixedly connected with a joint (3), the side wall of the connecting pipe (2) is fixedly connected with a sealing ring (9), the pipe body (1) is in penetrating connection with a piston rod (4), the two ends of the piston rod (4) are respectively fixedly connected with a piston (5) and a piston handle (6), and the outer wall of the pipe body (1) is fixedly connected with a limiting rod (10); the adjusting mechanism comprises a connecting pipe (2), 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 an adjusting rod (15), a connecting plate (16) and a fixing plate (17), the end 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 fixing plate (17), the top of the fixing 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 of a baffle plate (20).

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).

7. A pediatric clinical puncture needle according to claim 1, wherein: 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).

Images