CN113288139B - Blood sampling pen - Google Patents
Blood sampling pen Download PDFInfo
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- CN113288139B CN113288139B CN202110735228.5A CN202110735228A CN113288139B CN 113288139 B CN113288139 B CN 113288139B CN 202110735228 A CN202110735228 A CN 202110735228A CN 113288139 B CN113288139 B CN 113288139B
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- sleeve
- block
- main body
- telescopic
- piston
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- 238000010241 blood sampling Methods 0.000 title claims abstract description 42
- 238000003825 pressing Methods 0.000 claims description 22
- 210000004369 blood Anatomy 0.000 claims description 12
- 239000008280 blood Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 13
- 210000005259 peripheral blood Anatomy 0.000 abstract description 6
- 239000011886 peripheral blood Substances 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- GQWNECFJGBQMBO-UHFFFAOYSA-N Molindone hydrochloride Chemical compound Cl.O=C1C=2C(CC)=C(C)NC=2CCC1CN1CCOCC1 GQWNECFJGBQMBO-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150175—Adjustment of penetration depth
- A61B5/150183—Depth adjustment mechanism using end caps mounted at the distal end of the sampling device, i.e. the end-caps are adjustably positioned relative to the piercing device housing for example by rotating or screwing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15103—Piercing procedure
- A61B5/15107—Piercing being assisted by a triggering mechanism
- A61B5/15113—Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
- A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15126—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a blood sampling pen, includes needle portion and pen body portion, needle portion includes connection structure and extending structure, and extending structure is axially flexible installs on connection structure, and needle portion and pen body portion inner chamber remain the gas tightness. The blood sampling pen has the advantages of reliable structure and good air tightness, ensures that blood sampling areas are connected more stably, is modularized, is simple to produce and assemble, accurately controls the needle outlet depth of the blood sampling needle in the peripheral blood sampling process, and effectively reduces pain generated in the blood sampling process.
Description
Technical Field
The invention relates to the technical field of medical blood sampling equipment, in particular to a blood sampling pen.
Background
The blood sampling pen is a pen-type blood sampling device which is matched with a disposable sterile blood sampling needle to be used for collecting blood samples at the human body terminal. The peripheral blood collection means that a blood collection pen is used to puncture a peripheral blood supply rich region such as a fingertip, puncture the skin, and obtain peripheral blood, and the amount of blood collected is not large.
However, because the tips such as fingertips are nerve enrichment sensitivity areas, the puncture of the existing blood sampling points at the tips of the blood sampling pen can cause strong pain, and a method for controlling the depth of the puncture and reducing the blood sampling wound is generally adopted. All have the structure of regulation degree of depth on the market general blood sampling pen, adjust when the blood sampling, find suitable puncture degree of depth and alleviate the painful sense of tip blood sampling, however the puncture degree of depth and the dynamics of inserting the needle of general regulating method have instability, market research indicates that the blood sampling pen of adjusting the degree of depth, appear unstable state on painful sense control, and pain is alleviateed sometimes, sometimes does not alleviate. And the existing blood sampling pen is unstable in connection with a blood sampling area when in use, so that unsuccessful blood sampling or expansion of a puncture surface is caused, pain is increased, the whole structure is not reliable enough, and the production and assembly of products are relatively inconvenient. In addition, the common blood sampling pen generally adopts spring force as driving force, and in the blood sampling executing process, the inner clamping element and the outer pushing component are connected to synchronously move, and when released, the inner clamping element can be subjected to the resistance of the outer pushing device, so that the utilization rate of the spring force is reduced, and interference is easy to cause.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides the blood sampling pen which is reliable in structure, good in air tightness and capable of accurately controlling the needle outlet depth of the blood sampling needle in the peripheral blood sampling process, and pain generated in the blood sampling process is effectively reduced.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a blood sampling pen, includes needle portion and pen body portion, needle portion includes connection structure and extending structure, and extending structure is axially flexible installs on connection structure, and needle portion and pen body portion inner chamber remain the gas tightness. In the use process, the whole blood sampling pen always keeps certain air tightness.
Preferably, the connecting structure comprises a connecting cylinder a, the telescopic structure comprises a telescopic block a and an adjusting front cover, the inner wall of the front part of the connecting cylinder a is provided with a guide cylinder a, the side wall of the guide cylinder a is provided with a convex block a, the outer side of the rear part of the connecting cylinder a is provided with a limiting convex ring, the outer wall of the limiting convex ring is provided with a bulge, the inner wall of the rear end of the adjusting front cover is provided with a corresponding groove, the rear end of the telescopic block a is positioned between the limiting convex ring and the cylinder in the middle of the telescopic block a, the front end of the telescopic block a extends out of the adjusting front cover, a plurality of limiting guide bars are circumferentially distributed on the inner side of the front part of the adjusting front cover, a plurality of limiting guide grooves are circumferentially distributed on the front part of the telescopic block a, a chute a is formed in the telescopic block a, and the convex block a extends into the chute a. The adjusting front cover is rotatably sleeved on the limiting convex ring of the connecting cylinder a, the adjusting front cover is rotated, the telescopic block a synchronously rotates, the telescopic block a axially stretches out or retracts to move while rotating under the action of the convex block a and the chute a, and the limiting guide strip and the limiting guide groove play roles of circumferential limiting and axial guiding in the process.
Preferably, the rear end of the telescopic block a is provided with at least one notch, an elastic block is arranged in the notch, the outer side of the elastic block is provided with a positioning bulge a, and the inner wall of the limiting convex ring is provided with a certain number of positioning grooves a which are distributed continuously. The positioning bulge a and the positioning groove a play a role in positioning and rotation stopping, the positioning groove a is in an axial long shape, the positioning bulge a is positioned in one of the positioning grooves a in a normal state, after the front cover and the telescopic block a are adjusted to rotate, the positioning bulge a moves to the other positioning groove a in the circumferential direction under the action of the elastic block, and meanwhile, the axial position of the positioning bulge a in the positioning groove a is changed.
Preferably, the outer walls of the rear cylinder of the connecting cylinder a and the adjusting front cover are provided with marks. The marks for indicating the adjusted depth position may be by words, arrows or graduations of varying length, etc.
Preferably, the front end of the telescopic block a is provided with a rubber ring mounting groove, and a rubber ring is arranged in the rubber ring mounting groove. The rubber ring is a pressing part in direct contact with the blood sampling area and is formed by injection molding of medical silica gel, and the rubber ring has the function of improving the air tightness of the connection between the skin of the blood sampling area and the blood sampling pen.
Preferably, a sealing ring is arranged between the guide cylinder a and the telescopic block a, so that the air tightness of the structure is improved.
Preferably, a certain number of guide rib blocks are circumferentially distributed on the inner wall of the front end of the telescopic block a, and the inner ends of the guide rib blocks are propped against the outer wall of the front end of the connecting cylinder a to play a role in limiting and guiding. The limiting convex rings are uniformly provided with a plurality of notches, so that the limiting convex rings have certain deformability, and the front cover can be conveniently adjusted and disassembled.
Preferably, the connecting structure comprises a connecting cylinder b, the telescopic structure comprises a telescopic block b, the inner wall of the front part of the connecting cylinder b is provided with a convex block b, the telescopic block b is made of flexible materials, and the outer wall of the telescopic block b is provided with a chute b. The rigid connecting cylinder b and the flexible telescopic block b are assembled together to have certain air tightness, the telescopic block b is rotated, and the telescopic block b can axially displace under the action of the convex block b and the chute b.
Preferably, a positioning protrusion b is arranged on the inner wall of the front part of the connecting cylinder b, a guide ring is arranged on the inner wall of the rear side of the positioning protrusion b, a positioning groove b is arranged on the outer wall of the rear part of the telescopic block b, and an annular groove is arranged at the rear end of the telescopic block b. At least one of the positioning protrusions b and the positioning grooves b are uniformly distributed in the circumferential direction, and the positioning protrusions b and the positioning grooves b are matched to play a role in positioning and rotation stopping. The guide ring is sleeved at the rear part of the telescopic block b and partially stretches into the annular groove, so that the functions of guiding and improving the air tightness are achieved.
Preferably, the connecting structure comprises a connecting cylinder c, the telescopic structure comprises a telescopic block c, a guide cylinder b is arranged on the inner wall of the middle front portion of the connecting cylinder c, a bump c is arranged on the outer wall of the front end of the guide cylinder b, the telescopic block c is made of flexible materials, and a chute c is formed in the inner wall of the middle front portion of the telescopic block c. The rigid connecting cylinder c and the flexible telescopic block c are assembled together to have certain air tightness, the telescopic block c is rotated, and the telescopic block c can axially displace under the action of the convex block c and the chute c.
Preferably, a positioning groove c is formed in the inner wall of the connecting cylinder c on one side of the guide cylinder b, and a positioning protrusion c is formed in the outer wall of the rear portion of the guide cylinder b. At least one of the positioning protrusions c and the positioning grooves c is uniformly distributed in the circumferential direction, and the positioning protrusions c and the positioning grooves c are matched to play a role in positioning and rotation stopping.
Preferably, the needle outlet part comprises a connecting structure and a telescopic structure, and the telescopic structure is axially telescopic and installed on the inner side of the connecting structure. The telescopic structure is completely hidden in the connecting structure, and the axial position in the connecting structure can be adjusted.
Preferably, the connecting structure comprises a connecting cylinder d, the telescopic structure comprises a telescopic block d, an inner threaded section is arranged on the inner wall of the connecting cylinder d, and an outer threaded section is arranged on the outer wall of the telescopic block d. The connecting cylinder d is connected with the telescopic block d through threads, and the position of the telescopic block d is adjusted through rotation.
Preferably, a positioning groove d is circumferentially formed in the inner wall of the connecting cylinder d, and a positioning protrusion d is arranged at one end of the telescopic block d. The positioning groove d and the positioning protrusion d cooperate to play a role in positioning and stopping rotation
Preferably, the pen body part includes a main body part, a piston part in the main body part, and a push rod part pushing the piston part. The main part includes the sleeve, the key hole has been seted up to sleeve front end lateral wall, be equipped with button and trigger in the key hole, be equipped with preceding connecting piece in the sleeve of trigger front side, be equipped with the needle file subassembly that the rear end area magnetism was inhaled the metal piece in the preceding connection, piston part includes the piston main part and makes the piston main part backward direction lid one side motion's elastic component, piston main part front end is equipped with the block structure with trigger complex, be equipped with the recess in the middle of the terminal surface, be equipped with the magnet steel in the recess, the outside is equipped with the piston ring groove, be equipped with the piston ring in it, push rod portion includes the back direction lid of main part rear end and can be in the downthehole axial removal's of back direction lid push rod, the push rod front end is the push block, the rear end is the push block, the connection structure of needle portion is connected to the sleeve front end of main part.
The push rod part is not directly connected with the piston part, when needed, the push rod is pushed into the sleeve along the rear guide cover by the pressing block, the front push block moves forwards to prop against the rear end of the piston main body and move continuously until the front end of the piston main body is clamped with the trigger, the magnetic steel is adsorbed with the magnetic attraction metal piece of the needle seat assembly, the elastic piece is deformed, the push rod part can be separated from the piston part, the key is pressed down, the front end of the piston main body is separated from the trigger, the piston main body moves backwards rapidly under the action of the elastic piece in the direction of the rear guide cover, meanwhile, the needle seat of the needle seat assembly moves backwards under the action of magnetic force, the magnetic attraction metal piece is separated from the magnetic steel when the piston main body reaches a certain position at the rear end, and the needle seat is ejected forwards and pulled back rapidly to reset under the action of the spring in the needle seat assembly. Wherein, the push block of forward still plays the effect that avoids the push rod to break away from.
Preferably, a return spring is sleeved on the push rod between the rear guide cover and the pressing block. The push rod part automatically stretches out and resets after the work is completed, and does not interfere with the piston part.
Preferably, an outer sleeve is arranged outside the sleeve, the outer sleeve is provided with a certain gap with the sleeve and is connected with the sleeve at the front end, the pressing block is externally provided with a pressing sleeve extending forwards, and the front end of the pressing sleeve is inserted into the gap between the outer sleeve and the sleeve. Double-deck sleeve structure improves structural strength, carries out spacing direction to the motion of push rod portion when pressing, also can realize pressing the hiding of edge portion in the briquetting structure.
Preferably, the elastic piece is a tension spring, and the rear end of the piston main body and the inner end of the rear guide cover are respectively provided with a connecting structure of the tension spring.
Preferably, the elastic piece is a pressure spring, a convex ring is arranged on the inner wall of the sleeve at the rear side of the trigger, a step is arranged on the outer wall of the piston main body, and two ends of the pressure spring are respectively propped against the convex ring and the step of the piston main body. The convex ring also plays a role in limiting the piston main body to avoid torsion.
The invention has the beneficial effects that: 1. the blood sampling pen has the advantages that the structure is reliable, the air tightness is good, the connection of blood sampling areas is more stable, the structure is modularized, the production and the assembly are simple, the needle outlet depth of a blood sampling needle in the peripheral blood sampling process is accurately controlled, pain generated in the blood sampling process is effectively reduced, in addition, the mechanical movement in the blood sampling process is completed by the needle seat component and the piston part inside, and the external mechanism is not involved, so that interference is avoided;
2. The piston is not connected with the push rod, the piston can obtain higher sliding speed, and the piston can not be subjected to the resistance of the push rod when the spring releases the piston to manufacture negative pressure, so that a better negative pressure effect is obtained.
Drawings
FIG. 1 is a perspective view of a first embodiment of a needle outlet according to the present invention;
FIG. 2 is a cross-sectional view of a first embodiment of the needle-out portion of the present invention;
FIG. 3 is a front view of a connecting cylinder a in a first embodiment of the needle outlet of the present invention;
FIG. 4 is a perspective view of a connecting cylinder a in a first embodiment of the needle outlet of the present invention;
FIG. 5 is a cross-sectional view of a connecting cylinder a in a first embodiment of the needle-out portion of the present invention;
FIG. 6 is a perspective view of a telescopic block a in a first embodiment of the needle outlet of the present invention;
FIG. 7 is a front view of the expansion block a in the first embodiment of the needle outlet of the present invention;
FIG. 8 is a cross-sectional view of a telescopic block a in a first embodiment of the needle outlet of the present invention;
FIG. 9 is a perspective view of the adjustment front cover in accordance with the first embodiment of the needle outlet of the present invention;
FIG. 10 is another perspective view of the adjustment front cover of the first embodiment of the needle outlet of the present invention;
FIG. 11 is a perspective view of a second embodiment of the needle outlet of the present invention;
FIG. 12 is a cross-sectional view of a second embodiment of the needle-out portion of the present invention;
FIG. 13 is a perspective view of a connecting cylinder b in a second embodiment of the needle outlet of the present invention;
FIG. 14 is a cross-sectional view of a connecting cylinder b in a second embodiment of the needle-out portion of the present invention;
FIG. 15 is a front view of a second embodiment of the invention showing a telescoping block b;
FIG. 16 is a cross-sectional view of a second embodiment of the invention showing a telescoping block b;
FIG. 17 is a perspective view of a third embodiment of a needle ejection portion of the present invention;
FIG. 18 is a cross-sectional view of a third embodiment of the needle ejection portion of the present invention;
FIG. 19 is a perspective view of a connecting cylinder c in a third embodiment of the needle outlet of the present invention;
FIG. 20 is a cross-sectional view of a connecting cylinder c in a third embodiment of the needle-out portion of the present invention;
FIG. 21 is a perspective view of a third embodiment of a retracting block c of the needle portion of the present invention;
FIG. 22 is a cross-sectional view of a retracting block c in a third embodiment of the needle portion of the present invention;
FIG. 23 is a cross-sectional view of a fourth embodiment of the needle-out portion of the present invention;
FIG. 24 is a cross-sectional view of a connecting cylinder d in a fourth embodiment of the needle-out portion of the present invention;
FIG. 25 is a perspective view of a fourth telescopic block d of the needle-out portion according to the present invention;
FIG. 26 is a perspective view of a first embodiment of a pen body according to the present invention;
FIG. 27 is a cross-sectional view of a first embodiment of a body portion of the present invention;
FIG. 28 is a cross-sectional view of a first embodiment of a body portion of the present invention;
FIG. 29 is a partial cross-sectional view of a body portion of a first embodiment of a barrel portion of the present invention;
FIG. 30 is a cross-sectional view of a putter portion in accordance with one embodiment of the body portion of the present invention;
fig. 31 is a perspective view of a second and third embodiment of the body portion of the present invention;
FIG. 32 is a cross-sectional view of a second embodiment of a body portion of the present invention;
FIG. 33 is a cross-sectional view of a third embodiment of a body portion of the present invention;
FIG. 34 is a cross-sectional view of a sleeve in a second and third embodiment of a barrel portion of the present invention;
fig. 35 is a cross-sectional view of the putter portion in the second and third embodiments of the body portion of the present invention.
In the figure: 10. a needle outlet part; 11. a connecting cylinder a;11.1, a limiting convex ring; 11.2, protrusions; 11.3, bump a;11.4, positioning groove a;11.5, a guide cylinder a; 12. a seal ring; 13. a telescopic block a;13.1, a limit guide groove; 13.2, chute a;13.3, elastic blocks; 13.4, positioning the protrusion a;13.5, a rubber ring mounting groove; 13.6, guiding rib blocks; 14. adjusting the front cover; 14.1, grooves; 14.2, limiting guide bars; 15. a rubber ring; 16. a connecting cylinder b;16.1, bump b;16.2, positioning the protrusion b;16.3, a guide ring; 17. a telescopic block b;17.1, chute b;17.2, positioning groove b;17.3, ring grooves; 18. a connecting cylinder c;18.1, a guide cylinder b;18.2, bump c;18.3, positioning groove c;19. a telescopic block c;19.1, chute c;19.2, positioning projections c; 110. a connecting cylinder d;110.1, an internal thread segment; 110.2, positioning groove d;111. a telescopic block d;111.1, an external thread segment; 111.2, positioning projections d; 20. a main body portion; 21. a sleeve; 21.1, button holes; 21.2, convex rings; 22. a key; 23. a trigger; 24. a front connector; 25. a hub assembly; 26. a rear guide cover; 27. an outer sleeve; 30. a piston section; 31. a piston body; 32. magnetic steel; 33. a piston ring; 34. a tension spring; 35. a pressure spring; 40. a push rod part; 41. a push rod; 42. a front pushing block; 43. pressing the blocks; 44. a return spring; 45. pressing the sleeve; 100. and (5) identification.
Detailed Description
The invention is further illustrated by the following detailed description and the accompanying drawings.
The implementation mode is as follows: as shown in fig. 26, a blood sampling pen comprises a needle outlet part 10 and a pen body part, wherein the needle outlet part 10 comprises a connecting structure and a telescopic structure, the telescopic structure is axially telescopic and installed on the connecting structure, and the inner cavities of the needle outlet part 10 and the pen body part keep airtight.
First embodiment of the needle outlet 10: as shown in fig. 1-2, the needle-out portion 10 includes a connection structure and a telescopic structure, the telescopic structure is axially telescopic mounted at the front end of the connection structure, and air tightness is maintained between the connection structure and the telescopic structure.
As shown in fig. 3-10, the connecting structure comprises a connecting cylinder a11, the telescopic structure comprises a telescopic block a13 and an adjusting front cover 14, the inner wall of the front part of the connecting cylinder a11 is provided with a guide cylinder a11.5, the side wall of the guide cylinder a11.5 is provided with a convex block a11.3, the outer side of the rear part is provided with a limiting convex ring 11.1, the outer wall of the limiting convex ring 11.1 is provided with a convex 11.2, the inner wall of the rear end of the adjusting front cover 14 is provided with a corresponding groove 14.1, the rear end of the telescopic block a13 is positioned between the limiting convex ring 11.1 and the cylinder in the middle part, the front end of the telescopic block a13 extends out of the adjusting front cover 14, the inner side of the front part of the adjusting front cover 14 is circumferentially distributed with a plurality of limiting guide strips 14.2, the front part of the telescopic block a13 is circumferentially distributed with a plurality of limiting guide grooves 13.1, and the telescopic block a13.2 is provided with a chute a13.2
Wherein, flexible piece a13 front end is equipped with rubber ring mounting groove 13.5, is equipped with rubber ring 15 in the rubber ring mounting groove 13.5, is equipped with sealing washer 12 between guide cylinder a11.5 and the flexible piece a 13.
As shown in fig. 3-8, at least one notch is arranged at the rear end of the telescopic block a13, an elastic block 13.3 is arranged in the notch, a positioning protrusion a13.4 is arranged on the outer side of the elastic block, and a certain number of positioning grooves a11.4 which are distributed continuously are arranged on the inner wall of the limiting convex ring 11.1. The inner wall of the front end of the telescopic block a13 is circumferentially provided with a certain number of guide rib blocks 13.6, and a plurality of notches are uniformly distributed on the limiting convex ring 11.1.
As shown in fig. 1, 3 and 9-10, the rear cylinder of the connecting cylinder a11 and the outer wall of the adjusting front cover 14 are provided with marks 100.
Second embodiment of the needle outlet 10: as shown in fig. 11 to 16, the needle-out portion 10 includes a connection structure and a telescopic structure which is axially telescopic mounted at a front end of the connection structure, and air tightness is maintained between the connection structure and the telescopic structure. The connecting structure comprises a connecting cylinder b16, the telescopic structure comprises a telescopic block b17, the inner wall of the front part of the connecting cylinder b16 is provided with a convex block b16.1, the telescopic block b17 is made of flexible materials, and the outer wall of the telescopic block b17 is provided with a chute b17.1.
In addition, the inner wall of the front part of the connecting cylinder b16 is provided with a positioning bulge b16.2, the inner wall of the rear side of the positioning bulge b16.2 is provided with a guide ring 16.3, the outer wall of the rear part of the telescopic block b17 is provided with a positioning groove b17.2, and the rear end of the telescopic block b17 is provided with a ring groove 17.3.
Needle outlet 10 embodiment three: as shown in fig. 17 to 22, the needle-out portion 10 includes a connection structure and a telescopic structure which is axially telescopic mounted at a front end of the connection structure, and air tightness is maintained between the connection structure and the telescopic structure. The connecting structure comprises a connecting cylinder c18, the telescopic structure comprises a telescopic block c19, a guide cylinder b18.1 is arranged on the inner wall of the middle front part of the connecting cylinder c18, a convex block c18.2 is arranged on the outer wall of the front end of the guide cylinder b18.1, the telescopic block c19 is made of flexible materials, and a chute c19.1 is formed in the inner wall of the middle front part.
In addition, a positioning groove c18.3 is formed in the inner wall of the connecting cylinder c18 on one side of the guide cylinder b18.1, and a positioning protrusion c19.2 is formed in the outer wall of the rear portion of the guide cylinder b 18.1.
It should be noted that in the three embodiments of the needle outlet 10 described above, the shape of the chute may be an arc or a continuous step, or other designs may be used instead of the combination of the lug and chute, such as an intermeshing thread structure, to perform the same function.
Fourth embodiment of the needle outlet 10: as shown in fig. 23-25, the needle portion 10 includes a connecting structure and a telescoping structure axially telescoping mounted inside the connecting structure.
The connecting structure comprises a connecting cylinder d110, the telescopic structure comprises a telescopic block d111, an inner thread section 110.1 is arranged on the inner wall of the connecting cylinder d110, and an outer thread section 111.1 is arranged on the outer wall of the telescopic block d111. In addition, a positioning groove d110.2 is circumferentially formed in the inner wall of the connecting cylinder d110, and a positioning protrusion d111.2 is arranged at one end of the telescopic block d111.
The telescopic block d111 of the embodiment is completely hidden in the connecting cylinder d110, and as shown in fig. 26, the rear end of the connecting cylinder d110 is in sealing connection with the main body part 20 of the blood collection pen, and the front end of the connecting cylinder d110 is tightly attached to the skin of a blood collection place to form a seal during blood collection, so that the whole air tightness of the blood collection pen is realized.
First embodiment of pen body: as shown in fig. 26 to 27, the pen body part includes a main body part 20, a piston part 30 in the main body part 20, and a push rod part 40 pushing the piston part 30, and the piston part 30 and the push rod part 40 are not directly connected.
As shown in fig. 29, the main body 20 includes a sleeve 21 and an outer sleeve 27, the outer sleeve 27 is connected to the sleeve 21 at the front end with a certain gap, a key hole 21.1 is formed in the side wall of the front end of the sleeve 21, a key 22 and a trigger 23 are provided in the key hole 21.1, a rear part of a front connector 24 is provided in the sleeve 21 on the front side of the trigger 23, and the front part of the front connector 24 is located in the rear cylinder of the connecting cylinder of the needle outlet 10. The front connecting piece 24 is internally provided with a needle seat component 25 with a magnetic attraction metal piece at the rear end, the rear end of the main body part 20 is provided with a rear guide cover 26, the piston part 30 comprises a piston main body 31 and an elastic piece which enables the piston main body 31 to move towards one side of the rear guide cover 26, the front end of the piston main body 31 is provided with a clamping structure matched with the trigger 23, the middle of the end face is provided with a groove, the groove is internally provided with magnetic steel 32, the outer side is provided with a piston ring groove, and a piston ring 33 is arranged in the groove. The elastic member is a tension spring 34, and the rear end of the piston main body 31 and the inner end of the rear guide cover 26 are respectively provided with a connection structure of the tension spring 34.
As shown in fig. 30, the push rod portion 40 includes a push rod 41 axially movable in the hole in the rear guide cover 26, a front push block 42 is provided at the front end of the push rod 41, a pressing block 43 is provided at the rear end of the push rod 41, and a return spring 44 is provided on the push rod 41 between the rear guide cover 26 and the pressing block 43. The pressing block 43 is provided with a pressing sleeve 45 extending forward, and the tip of the pressing sleeve 45 is inserted into the gap between the outer sleeve 27 and the sleeve 21.
The working process is as follows: as shown in fig. 27 and 28, the release state and the limit state of the piston main body 31 are respectively, and the process from the release state to the limit state is that the push rod 41 is pushed into the sleeve 21 along the rear guide cover 26 by the pressing block 43, the front push block 42 moves forward to prop against the rear end of the piston main body 31 and continues to move until the front end of the piston main body 31 is clamped with the trigger 23, the magnetic steel 32 is adsorbed together with the magnetic attraction metal piece of the needle seat assembly 25, the tension spring 34 stretches and deforms, and the push rod part 40 is reset away from the piston part 30 under the action of the reset spring 44; the process from the limit state to the release state is that the key 22 is pressed, the front end of the piston main body 31 is separated from the trigger 23, the piston main body 31 moves backward rapidly towards the direction of the cover 26 under the action of the tension spring 34, meanwhile, the needle seat of the needle seat assembly 25 moves backward under the action of magnetic force, when the piston main body 31 reaches a certain position at the rear end, the magnetic attraction metal piece is separated from the magnetic steel 32, the needle seat is ejected forward under the action of the spring in the needle seat assembly 25, and the needle seat is pulled back rapidly to reset, so that the blood collection work is completed.
Second embodiment of pen body: the difference between the first embodiment of the body and the second embodiment of the body, shown in connection with Figs. 31-32 and 34-35, is that there is no outer sleeve 27 and no pressing sleeve 45, and the other constructions are identical and the construction is simpler.
A third embodiment of the pen body: as shown in fig. 31 and fig. 34 to 34, the difference from the second embodiment of the pen body is that the elastic member is a compression spring 35 instead of the tension spring 34, the inner wall of the sleeve 21 at the rear side of the trigger 23 is provided with a convex ring 21.2, the outer wall of the piston main body 31 is provided with a step, and two ends of the compression spring 35 respectively prop against the convex ring 21.2 and the step of the piston main body 31.
The convex ring 21.2 of the third embodiment of the pen body is also applicable to the first and second embodiments, and plays a role in limiting the piston main body 31 to avoid torsion.
It should be noted that any of the embodiments of the ejection portion 10 and the embodiment of the main body portion 20 described above may be assembled.
The embodiments described in the present specification are merely examples of implementation forms of the inventive concept, and the scope of protection of the present invention should not be construed as being limited to the specific forms set forth in the embodiments, and the scope of protection of the present invention and equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.
Claims (5)
1. The utility model provides a blood sampling pen, includes needle portion (10) and body portion, its characterized in that: the needle outlet part (10) comprises a connecting structure and a telescopic structure, the telescopic structure is axially telescopic and arranged on the connecting structure, and the needle outlet part (10) and the inner cavity of the pen body part keep airtight;
The connecting structure comprises a connecting cylinder a (11), the telescopic structure comprises a telescopic block a (13) and an adjusting front cover (14), a guide cylinder a (11.5) is arranged on the inner wall of the middle front part of the connecting cylinder a (11), a convex block a (11.3) is arranged on the side wall of the guide cylinder a (11.5), a limiting convex ring (11.1) is arranged on the outer side of the rear part of the connecting cylinder a, a bulge (11.2) is arranged on the outer wall of the limiting convex ring (11.1), a corresponding groove (14.1) is arranged on the inner wall of the rear end of the adjusting front cover (14), the rear end of the telescopic block a (13) is positioned between the limiting convex ring (11.1) and a cylinder in the middle part, the front end extends out of the adjusting front cover (14), a plurality of limiting guide strips (14.2) are circumferentially distributed on the inner side of the middle front part of the adjusting front cover (14), a plurality of limiting guide grooves (13.1) are circumferentially distributed on the middle front part of the telescopic block a (13), and a chute a (13.2) are formed on the telescopic block a (13);
The rear end of the telescopic block a (13) is provided with at least one notch, an elastic block (13.3) is arranged in the notch, a positioning bulge a (13.4) is arranged on the outer side of the elastic block, and a certain number of positioning grooves a (11.4) which are continuously distributed are formed in the inner wall of the limiting bulge loop (11.1);
The front end of the telescopic block a (13) is provided with a rubber ring mounting groove (13.5), a rubber ring (15) is arranged in the rubber ring mounting groove (13.5), and a sealing ring (12) is arranged between the guide cylinder a (11.5) and the telescopic block a (13).
2. A blood collection pen according to claim 1, wherein: the pen body part comprises a main body part (20), a piston part (30) in the main body part (20) and a push rod part (40) for pushing the piston part (30);
The main body part (20) comprises a sleeve (21), a key hole (21.1) is formed in the side wall of the front end of the sleeve (21), a key (22) and a trigger (23) are arranged in the key hole (21.1), a front connecting piece (24) is arranged in the sleeve (21) at the front side of the trigger (23), and a needle seat assembly (25) with a magnetic metal piece at the rear end is arranged in the front connecting piece (24);
The piston part (30) comprises a piston main body (31) and an elastic piece which enables the piston main body (31) to move towards one side of the rear guide cover (26), the front end of the piston main body (31) is provided with a clamping structure matched with the trigger (23), the middle of the end face is provided with a groove, the middle of the end face is provided with a magnetic steel (32), the outer side is provided with a piston ring groove, and a piston ring (33) is arranged in the piston ring groove;
The push rod part (40) comprises a rear guide cover (26) fixed at the rear end of the main body part (20) and a push rod (41) capable of axially moving in a hole in the rear guide cover (26), the front end of the push rod (41) is a front push block (42), and the rear end of the push rod is a pressing block (43).
3. A blood collection pen according to claim 2, wherein: a return spring (44) is sleeved on the push rod (41) between the rear guide cover (26) and the pressing block (43).
4. A blood collection pen according to claim 2, wherein: the sleeve (21) is externally provided with an outer sleeve (27), the outer sleeve (27) is provided with a certain gap with the sleeve (21) and is connected with the sleeve (21) at the front end, the pressing block (43) is externally provided with a pressing sleeve (45) extending forwards, and the front end of the pressing sleeve (45) is inserted into the gap between the outer sleeve (27) and the sleeve (21).
5. A blood collection pen according to any one of claims 3-4 wherein: the elastic piece is a tension spring (34), and the rear end of the piston main body (31) and the inner end of the rear guide cover (26) are respectively provided with a connecting structure of the tension spring (34);
Or the elastic piece is a pressure spring (35), the inner wall of the sleeve (21) at the rear side of the trigger (23) is provided with a convex ring (21.2), the outer wall of the piston main body (31) is provided with a step, and two ends of the pressure spring (35) respectively prop against the convex ring (21.2) and the step of the piston main body (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/137414 WO2023273187A1 (en) | 2020-07-01 | 2021-12-13 | Lancing pen |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021269780 | 2020-07-01 | ||
| CN2020212697807 | 2020-07-01 |
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| Publication Number | Publication Date |
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| CN113288139A CN113288139A (en) | 2021-08-24 |
| CN113288139B true CN113288139B (en) | 2024-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110735228.5A Active CN113288139B (en) | 2020-07-01 | 2021-06-30 | Blood sampling pen |
| CN202121470126.7U Active CN215191590U (en) | 2020-07-01 | 2021-06-30 | Blood sampling pen |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121470126.7U Active CN215191590U (en) | 2020-07-01 | 2021-06-30 | Blood sampling pen |
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| Country | Link |
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| CN (2) | CN113288139B (en) |
| WO (1) | WO2023273187A1 (en) |
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|---|---|---|---|---|
| CN113288139B (en) * | 2020-07-01 | 2024-09-17 | 杭州安诺凯医疗科技有限公司 | Blood sampling pen |
| CN114391843A (en) * | 2022-01-28 | 2022-04-26 | 杭州安诺凯医疗科技有限公司 | A needle holder for a lancet carrying a disposable lancet |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215191590U (en) * | 2020-07-01 | 2021-12-17 | 杭州安诺凯医疗科技有限公司 | Blood sampling pen |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5188599A (en) * | 1989-07-11 | 1993-02-23 | Med-Design, Inc. | Retractable needle system |
| CN1460449A (en) * | 2003-06-18 | 2003-12-10 | 清华大学 | Automatic quantitative blood-taking pen |
| CN1313053C (en) * | 2004-09-15 | 2007-05-02 | 施迎敢 | Needle tip drawing back type disposable safety blood taking needle and disposable ejection type safety blood taking pen |
| KR101462447B1 (en) * | 2013-06-25 | 2014-11-19 | 주식회사 지엠엠씨 | Safety Blood Lancet Device |
| CN103767713B (en) * | 2014-02-28 | 2015-04-01 | 项明亮 | Puncture device causing less pain |
| CN103860181B (en) * | 2014-03-20 | 2015-06-17 | 苏州施莱医疗器械有限公司 | Improved safe lancing device |
| CN105455824A (en) * | 2014-09-09 | 2016-04-06 | 大捷达实业（深圳）有限公司 | Painless vacuum blood collector |
| CN106137222B (en) * | 2016-07-28 | 2023-03-24 | 苏州施莱医疗器械有限公司 | Detachable cap type adjusting head of blood sampling pen |
| CN107854129B (en) * | 2017-10-23 | 2019-08-23 | 苏州施莱医疗器械有限公司 | A kind of blood collecting pen that paracentesis depth postposition is adjusted |
| CN211066647U (en) * | 2019-10-08 | 2020-07-24 | 台州安诺凯生物科技有限公司 | Negative pressure painless blood sampling pen |
| CN112043290B (en) * | 2020-10-09 | 2021-05-11 | 普昂(杭州)医疗科技股份有限公司 | Negative pressure blood sampling pen |
-
2021
- 2021-06-30 CN CN202110735228.5A patent/CN113288139B/en active Active
- 2021-06-30 CN CN202121470126.7U patent/CN215191590U/en active Active
- 2021-12-13 WO PCT/CN2021/137414 patent/WO2023273187A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215191590U (en) * | 2020-07-01 | 2021-12-17 | 杭州安诺凯医疗科技有限公司 | Blood sampling pen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN215191590U (en) | 2021-12-17 |
| WO2023273187A1 (en) | 2023-01-05 |
| CN113288139A (en) | 2021-08-24 |
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