CN110720932A - Be provided with multi-needle structure's piercing depth for blood test - Google Patents

Abstract

The invention discloses a puncture device with a multi-needle structure for blood detection, which comprises an upper shell and a sampling cup, wherein the bottom end of the upper shell is in threaded connection with the top end of a lower shell, the top end of a connecting frame is connected with the bottom end of a driving plate, the driving plate is vertically distributed, an outer tube which is horizontally distributed is arranged inside the upper shell, two ends of the outer tube are rotatably connected to a disconnected part of a sleeve, the sleeves at two ends are connected through a support, the tail end of the sleeve penetrates through the upper shell and extends to the upper part of the sampling cup, the sampling cup is installed on the outer surface of the lower shell through a buckle, and the buckle and the lower shell are fixedly connected. This be provided with piercing depth for blood detection of many needle structures on the basis of using many needle structures, design corresponding needle tubing sliding structure, conveniently utilize the removal of clamp plate to select the needle tubing roll-off puncture of assigned position, can utilize the slip action of self to carry out convenient sample to blood simultaneously, design more rationally.

Description

Be provided with multi-needle structure's piercing depth for blood test

Technical Field

The invention relates to the technical field of medical detection equipment, in particular to a puncture device with a multi-needle structure for blood detection.

Background

In hospitals, blood detection is a common detection mode, after disinfection is carried out on a specified skin position, a puncture device is used for puncture operation, a needle tube penetrates through a cortex layer to reach a blood vessel and is led out to a sampling cup through the needle tube and the internal structure of the device, and in order to improve detection sampling efficiency, a multi-needle structure is used in the prior art;

for example, the grant patent (a blood detects pjncture needle for medical treatment) that publication number is CN207186624U, which comprises a housin, from last to having seted up piston chamber and reposition of redundant personnel chamber down in proper order in the casing, and the piston chamber communicates with each other with the reposition of redundant personnel chamber, the piston intracavity is equipped with the piston, the one end that the piston kept away from the reposition of redundant personnel chamber is connected with the pull rod, the pull rod extends to outside the casing, reposition of redundant personnel intracavity equidistance is vertical to be equipped with two baffles, three opening has been seted up in the reposition of redundant personnel intracavity, every the opening all communicates there is survey buret, be equipped with reaction unit in the survey buret, the bottom of casing is equipped with the mount, be equipped with the pipeline on the mount, rotate through the pivot. The utility model discloses stable in structure possesses a plurality of survey burets and needle tubing, can take different needle tubing to different measurement positions, and can carry out parallel test to get average value to the measuring result, increase blood detection's accuracy, but above-mentioned technical scheme has following shortcoming when in-service use:

1. the needles are distributed in a scattered ray type structure, different needle tubes are used at different positions, but when the puncture operation is carried out, the needle tubes at the side positions easily cause accidental injury to the skin, and related storage structures which are reasonable in design are not provided;

2. the blood in the needle tubes at different positions can flow into the uniform cavity in the device in the sampling process, the blood at different positions can be mixed with residual blood in the previous sampling process, and the subsequent detection result of the blood can be naturally influenced.

Disclosure of Invention

The invention aims to provide a puncture device with a multi-needle structure for blood detection, which aims to solve the problems that needles are distributed in a scattered ray type structure and different needle tubes are used at different positions in the background technology, but the needle tube at the side position easily causes accidental injury to skin during puncture operation and has no related storage structure with reasonable design; the blood in the needle tubing of different positions all can flow to the inside unified cavity of device in the sampling process, and the blood of different positions can mix with the residual blood in the preceding sampling process, and the follow-up testing result of blood can the problem that influences naturally.

In order to achieve the purpose, the invention provides the following technical scheme: a puncture device with a multi-needle structure for blood detection comprises an upper shell and a sampling cup, wherein the bottom end of the upper shell is in threaded connection with the top end of a lower shell, a pressing plate is arranged at the top end of the upper shell, a cover plate is arranged at the bottom end of the lower shell and is in rotary connection with the upper shell, a needle tube is arranged above the cover plate, a vertical rod is correspondingly arranged above the needle tube, 3 vertical rods are arranged above the needle tube and are in equal angle with respect to the center of the lower shell, the top end of each vertical rod is connected with a sliding rod, the top end of each sliding rod penetrates through the upper shell to extend to the lower end face of the pressing plate, the sliding rods form a sliding connection structure through a first spring and the vertical rods, a connecting frame is arranged inside the upper shell, a transverse plate is arranged below the connecting frame, the tail end of the transverse plate is fixed on the inner wall of the lower shell, the top end of the, and the both ends of outer tube are rotated and are connected in sleeve pipe disconnection department to be connected through the support between the sleeve pipe of both ends, sheathed tube inside coincide has the rubber tube simultaneously, sheathed tube tail end passes the epitheca and extends to sample cup top, and samples the cup and install the surface at the inferior valve through the buckle, and buckle and inferior valve are fixed connection.

Preferably, the lateral side of the cover plate is provided with vertically through pinholes, the pinholes and one of the 3 needle tubes are vertically and correspondingly distributed, and the lower end surface of the cover plate is provided with an air bag.

Preferably, the avris of gasbag is provided with the depressed area, and this depressed area and pinhole are corresponding to be distributed, and the pinhole be provided with all around and set up the play liquid hole at the gasbag avris to it distributes for the slope to go out the liquid hole.

Preferably, a second spring is arranged between the connecting frame and the transverse plate, the connecting frame is in threaded connection with the upper half section of the needle tube, and the lower half section of the needle tube is movably connected with the transverse plate.

Preferably, the top end of the second spring is fixedly connected with the lower end face of the connecting frame, the bottom end of the second spring is in contact with the upper end face of the transverse plate, and the elastic coefficient of the second spring is smaller than that of the first spring.

Preferably, the side of the driving plate is slidably connected in a sliding groove through a sliding block, the sliding groove is formed in the inner wall of the upper shell, the surface of the driving plate is provided with toothed blocks, and the other group of toothed blocks are annularly distributed on the surface of the outer tube.

Preferably, the inner wall of the outer pipe is fixed with a clamping plate, the clamping plate is matched with the clamping groove, the clamping groove is formed in the lower end face of the rubber pipe, and the pipe wall hardness of the rubber pipe at the clamping groove is greater than that of the surrounding rubber pipe.

Preferably, the front half section of the rubber tube penetrates through the tube opening and extends into the tube groove, the tube groove and the tube opening are formed in the inner part and the side surface of the vertical rod, and the bottom end of the tube groove is matched with the top end of the needle tube.

Compared with the prior art, the invention has the beneficial effects that: according to the puncture device with the multi-needle structure for blood detection, on the basis of using the multi-needle structure, the corresponding needle tube sliding structure is designed, so that the needle tube at the designated position can be conveniently selected to slide out for puncture by moving the pressing plate, and meanwhile, the blood can be conveniently and rapidly sampled by utilizing the self sliding action, so that the design is more reasonable;

1. the structure design of the cover plate is convenient for utilizing the rotation of the cover plate at the bottom end of the lower shell to vertically correspond the needle hole and the needle tube at a proper designated position, so that the downward movement of the pressing plate can ensure that the needle tube at the designated position can independently slide out, the accidental injury is avoided, and the use of the air bag can not only utilize the reserved concave area in the middle to carry out subsequent nursing operation on the puncture position, but also utilize the pressing and extrusion of medical personnel to disinfect and clean the skin at the puncture position;

2. the needle tube, the connecting frame and the transverse plate are connected by the connecting structure, so that the rubber tube and the needle tube inside the needle tube can be conveniently detached and replaced by detaching the lower shell and the upper shell;

3. the structural design of drive plate is convenient for utilize the removal of needle tubing to drive the synchronous rotation of outer tube to utilize cardboard and draw-in groove to carry out automatic change to the connected state of rubber tube, make things convenient for the change of rubber tube and stop the remaining blood sample drippage in puncture back needle tubing and the rubber tube.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic bottom view of the cover plate of the present invention;

FIG. 3 is a schematic view of a front view of the pressing plate of the present invention after moving downward;

FIG. 4 is a schematic top sectional view of the upper shell of the present invention;

FIG. 5 is a schematic cross-sectional view of the vertical bar of the present invention;

FIG. 6 is an enlarged view of the structure at A in FIG. 5 according to the present invention;

FIG. 7 is a front sectional view of the outer tube of the present invention before rotation.

In the figure: 1. an upper shell; 2. a lower case; 3. pressing a plate; 4. a cover plate; 41. a pinhole; 42. an air bag; 43. a liquid outlet hole; 5. a needle tube; 6. a vertical rod; 7. a slide bar; 8. a first spring; 9. a connecting frame; 91. a second spring; 10. a transverse plate; 11. a drive plate; 111. a slider; 112. a chute; 113. a tooth block; 12. an outer tube; 121. clamping a plate; 122. a card slot; 13. a sleeve; 14. a hose; 141. a pipe groove; 142. a pipe orifice; 15. a sampling cup; 16. and (5) buckling.

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. 1-7, the present invention provides a technical solution: a puncture device with a multi-needle structure for blood detection comprises an upper shell 1, a lower shell 2, a pressing plate 3, a cover plate 4, a needle hole 41, an air bag 42, a liquid outlet 43, a needle tube 5, a vertical rod 6, a slide rod 7, a first spring 8, a connecting frame 9, a second spring 91, a transverse plate 10, a driving plate 11, a slide block 111, a sliding chute 112, a toothed block 113, an outer tube 12, a clamping plate 121, a clamping groove 122, a sleeve 13, a rubber tube 14, a tube groove 141, a tube opening 142, a sampling cup 15 and a buckle 16, wherein the bottom end of the upper shell 1 is in threaded connection with the top end of the lower shell 2, the pressing plate 3 is arranged at the top end of the upper shell 1, the cover plate 4 is arranged at the bottom end of the lower shell 2 and is in rotary connection, the needle tube 5 is arranged above the cover plate 4, the needle tube 5 is correspondingly provided with the vertical rod 6, the vertical rod 6 is arranged at an equal angle relative to the center of the lower shell 2, and the slide bar 7 constitutes sliding connection structure through first spring 8 and montant 6, the inside of epitheca 1 is provided with link 9, and the below of link 9 is provided with diaphragm 10, and the tail end of diaphragm 10 is fixed on the inner wall of inferior valve 2, the top of link 9 and the bottom of drive plate 11 are connected, and drive plate 11 is the vertical distribution, the inside of epitheca 1 is provided with horizontal distribution's outer tube 12, and the both ends of outer tube 12 rotate and connect in sleeve 13 disconnection department, and connect through the support between the sleeve 13 of both ends, the inside of sleeve 13 has coincided rubber tube 14 simultaneously, the tail end of sleeve 13 passes epitheca 1 and extends to sample cup 15 top, and sample cup 15 installs at the surface of inferior valve 2 through buckle 16, and buckle 16 and inferior valve 2 are fixed connection.

The side of the cover plate 4 is provided with a vertically through pinhole 41, the pinholes 41 and one of the 3 needle tubes 5 are distributed up and down correspondingly, the lower end surface of the cover plate 4 is provided with an air bag 42, the side of the air bag 42 is provided with a concave area, the concave area and the pinholes 41 are distributed correspondingly, the periphery of the pinhole 41 is provided with liquid outlet holes 43 arranged on the side of the air bag 42, the liquid outlet holes 43 are distributed obliquely, the medical staff can rotate the cover plate 4 and vertically correspond the pinholes 41 in the cover plate 4 to the needle tubes 5 at the corresponding positions, then the whole device can be held by a hand, the cover plate 4 and the air bag 42 are covered on the skin, the concave area of the air bag 42 in the figure 1 is covered on the puncture position, and the whole device is pressed, so that the disinfectant in the air bag 42 is sprayed out from the liquid outlet holes 43 in the figure 1, thereby realizing the purpose of disinfecting the designated position, and the same way, the whole device is pressed downwards, and the disinfectant in the air bag 42 is used for spraying and disinfecting the wound covered with the disinfectant cotton.

Thesecond spring 91 is arranged between the connectingframe 9 and thetransverse plate 10, the connectingframe 9 is in threaded connection with the upper half section of theneedle tube 5, the lower half section of theneedle tube 5 is movably connected with thetransverse plate 10, the top end of thesecond spring 91 is fixedly connected with the lower end face of the connectingframe 9, the bottom end of the second spring is in contact with the upper end face of thetransverse plate 10, the elastic coefficient of thesecond spring 91 is smaller than that of thefirst spring 8, when thepressing plate 3 is pressed, the slidingrod 7 can slide corresponding to the top wall of theupper shell 1, when the slidingrod 7 without theneedle hole 41 right below moves downwards, thevertical rod 6 can be driven to move synchronously, when the bottom end of thevertical rod 6 is in contact with the connectingframe 9, theneedle tube 5 is driven to correspondingly move downwards for a small distance, under the blocking of the soft surface layer of the upper end face of thecover plate 4, theneedle tube 5 cannot move downwards continuously, and the needle.

The side of the drivingplate 11 is slidably connected in the slidinggroove 112 through a slidingblock 111, the slidinggroove 112 is arranged on the inner wall of theupper shell 1, the surface of the drivingplate 11 is provided with atoothed block 113, and the other group oftoothed blocks 113 are annularly distributed on the surface of theouter tube 12, the connectingframe 9 can drive the drivingplate 11 on the side to synchronously move downwards while moving downwards, the slidingblock 111 can correspondingly slide in the slidinggroove 112, the sliding stability of the drivingplate 11 is ensured, and theouter tube 12 correspondingly synchronously rotates while sliding under the meshing transmission action of the two groups oftoothed blocks 113 in fig. 6.

The inner wall of theouter tube 12 is fixed with aclamping plate 121, the clampingplate 121 is matched with a clampinggroove 122, the clampinggroove 122 is formed in the lower end face of therubber tube 14, the hardness of the tube wall of therubber tube 14 at the position of the clampinggroove 122 is larger than that of the surroundingrubber tube 14, the front half section of therubber tube 14 penetrates through atube opening 142 and extends into atube groove 141, thetube groove 141 and thetube opening 142 are formed in the inner portion and the side surface of thevertical rod 6, the bottom end of thetube groove 141 is matched with the top end of theneedle tube 5, theneedle tube 5 moves upwards synchronously along with the connectingframe 9, theouter tube 12 in the figure 6 is correspondingly reversed under the meshing transmission action of thegear block 113, the final state is shown in figure 7, the clampingplate 121 rotates to the upper side of therubber tube 14, therubber tube 14 is pressed.

The working principle is as follows: before use, a medical worker can rotate the cover plate 4, vertically correspond the needle hole 41 in the cover plate 4 to the needle tube 5 at the corresponding position, then hold the whole device by hand, cover the cover plate 4 and the air bag 42 on the skin, cover the sunken area of the air bag 42 in fig. 1 on the puncture position, and press the whole device, so that the disinfectant in the air bag 42 is sprayed out from the liquid outlet hole 43 in fig. 1, thereby achieving the purpose of disinfecting the specified position, and then press the press plate 3, as shown in fig. 3, when the press plate 3 is pressed, the slide rod 7 can slide on the top wall of the upper shell 1 correspondingly, when the slide rod 7 without the needle hole 41 right below moves downwards, the vertical rod 6 is firstly driven to move synchronously, and when the bottom end of the vertical rod 6 is contacted with the connecting frame 9, the needle tube 5 is driven to move downwards by a small distance correspondingly, and under the block of the soft surface layer on the upper end surface of, the needle tube 5 can not move downwards continuously, the needle tube 5 with the needle holes 41 distributed below can move downwards continuously along with the connecting frame 9, the second spring 91 is compressed correspondingly, and the first spring 8 above the needle tube 5 which does not move downwards continuously can compress and drive the sliding rod 7 to slide in the vertical rod 6, so that the normal downward movement of the pressing plate 3 is ensured;

after the pressing plate 3 moves down to a designated length, the bottom end of the needle tube 5 will penetrate through the skin surface of the user and enter the blood vessel, as shown in fig. 5 and 6, the connecting frame 9 will drive the side driving plate 11 to move downward synchronously while moving downward, the sliding block 111 will slide in the sliding slot 112 correspondingly, so as to ensure the stability of the sliding of the driving plate 11, while it slides, under the meshing transmission action of the two sets of gear blocks 113 in fig. 6, the outer tube 12 rotates correspondingly synchronously, the clamping plate 121 in the outer tube 12 will rotate correspondingly to the clamping slot 122, so that under the action of the blood pressure inside the human body, the blood enters the rubber tube 14 in fig. 5 through the needle tube 5 and enters the sampling cup 15 fixed in the outer clamping buckle 16, thereby completing the sampling operation, after that the medical staff can release the pressing plate 3, the needle tube 5 moves back correspondingly, and at the same time, the medical staff can sterilize the wound through the depressed area in the air bag 42, similarly, the whole device can be pressed downwards continuously, and the disinfectant in the air bag 42 is utilized to further spray and disinfect the wound covered with the disinfectant cotton;

when theneedle tube 5 moves upwards synchronously along with the connectingframe 9, under the meshing transmission action of thegear block 113, theouter tube 12 in fig. 6 can correspondingly rotate reversely, and the final state is as shown in fig. 7, the clampingplate 121 rotates to the position above therubber tube 14, therubber tube 14 is pressed by utilizing the shape of theclamping plate 121, so that the circulation line in therubber tube 14 is correspondingly closed, and the purpose of preventing residual blood in the tube from dripping through theneedle tube 5 is achieved, after the use, a worker can firstly take theneedle tube 5 off in a spiral mode, screw thelower shell 2 off in a spiral mode, and take out therubber tube 14.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a be provided with piercing depth for blood test of many needle structures, includes epitheca (1) and sample cup (15), its characterized in that: the bottom end of the upper shell (1) is in threaded connection with the top end of the lower shell (2), the top end of the upper shell (1) is provided with a pressing plate (3), the bottom end of the lower shell (2) is provided with a cover plate (4) which is in rotary connection, a needle tube (5) is arranged above the cover plate (4), vertical rods (6) are correspondingly arranged above the needle tube (5), the two vertical rods are arranged at 3 equal angles relative to the center of the lower shell (2), the top end of each vertical rod (6) is connected with a sliding rod (7), the top end of each sliding rod (7) penetrates through the upper shell (1) and extends to the lower end face of the pressing plate (3), the sliding rods (7) form a sliding connection structure through first springs (8) and the vertical rods (6), a connecting frame (9) is arranged inside the upper shell (1), a transverse plate (10) is arranged below the connecting frame (9), and the tail end of the transverse plate (10) is fixed on the inner wall of the, the top of link (9) is connected with the bottom of drive plate (11), and drive plate (11) are the vertical distribution, the inside of epitheca (1) is provided with horizontal distribution's outer tube (12), and the both ends of outer tube (12) are rotated and are connected in sleeve pipe (13) disconnection department to be connected through the support between both ends sleeve pipe (13), the inside of sleeve pipe (13) has coincided rubber tube (14) simultaneously, the tail end of sleeve pipe (13) passes epitheca (1) and extends to sample cup (15) top, and installs the surface at inferior valve (2) through buckle (16) in sample cup (15), and buckle (16) and inferior valve (2) are fixed connection.

2. The lancing device for blood test provided with a multi-needle structure according to claim 1, wherein: the lateral side of the cover plate (4) is provided with a vertically through pinhole (41), one of the pinholes (41) and 3 needle tubes (5) is vertically and correspondingly distributed, and the lower end surface of the cover plate (4) is provided with an air bag (42).

3. The lancing device for blood test provided with a multi-needle structure according to claim 2, wherein: the avris of gasbag (42) is provided with the depressed area, and this depressed area and pinhole (41) are corresponding distributes, and pinhole (41) are provided with all around and set up out liquid hole (43) at gasbag (42) avris to it distributes for the slope to go out liquid hole (43).

4. The lancing device for blood test provided with a multi-needle structure according to claim 1, wherein: a second spring (91) is arranged between the connecting frame (9) and the transverse plate (10), the connecting frame (9) is in threaded connection with the upper half section of the needle tube (5), and the lower half section of the needle tube (5) is movably connected with the transverse plate (10).

5. The lancing device for blood test provided with a multi-needle structure according to claim 4, wherein: the top end of the second spring (91) is fixedly connected with the lower end face of the connecting frame (9), the bottom end of the second spring is in contact with the upper end face of the transverse plate (10), and the elastic coefficient of the second spring (91) is smaller than that of the first spring (8).

6. The lancing device for blood test provided with a multi-needle structure according to claim 1, wherein: the side of the driving plate (11) is connected in a sliding groove (112) in a sliding mode through a sliding block (111), the sliding groove (112) is formed in the inner wall of the upper shell (1), a tooth block (113) is arranged on the surface of the driving plate (11), and the other group of tooth blocks (113) are distributed on the surface of the outer tube (12) in an annular mode.

7. The lancing device for blood test provided with a multi-needle structure according to claim 1, wherein: the inner wall of the outer pipe (12) is fixed with a clamping plate (121), the clamping plate (121) is matched with a clamping groove (122), the clamping groove (122) is formed in the lower end face of the rubber pipe (14), and the pipe wall hardness of the rubber pipe (14) at the position of the clamping groove (122) is larger than that of the surrounding rubber pipe (14).

8. The lancing device for blood test provided with a multi-needle structure according to claim 1, wherein: the front half section of the rubber tube (14) passes through the tube opening (142) and extends into the tube groove (141), the tube groove (141) and the tube opening (142) are arranged inside and on the side surface of the vertical rod (6), and the bottom end of the tube groove (141) is matched with the top end of the needle tube (5).

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