CN212364337U - Disposable suction head for medical automation equipment - Google Patents
Disposable suction head for medical automation equipment Download PDFInfo
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- CN212364337U CN212364337U CN202020835099.8U CN202020835099U CN212364337U CN 212364337 U CN212364337 U CN 212364337U CN 202020835099 U CN202020835099 U CN 202020835099U CN 212364337 U CN212364337 U CN 212364337U
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Abstract
The utility model discloses a disposable suction head that medical automation equipment used, including body and the socket joint and the toper suction nozzle that are located the body both ends respectively, its characterized in that the socket joint can compression deformation, the tube wall thickness of this socket joint is 0.3 ~ 0.6mm, has six vertical protruding muscle at least at the socket joint outer wall, is equipped with two at least protruding muscle of loop type at the inner wall of socket joint, and the interval of the protruding muscle of adjacent loop type is 0.1 ~ 0.3 mm. The utility model discloses the connector head can keep the gas tightness with liquid needle tight fit, prevents that gas leakage, dropping liquid or suction head from droing, prevents cross contamination, increases the life of liquid needle and power device motor simultaneously.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a disposable suction head for medical automation equipment, which belongs to the technical field of medical detection auxiliary equipment.
[ background of the invention ]
The existing medical automatic detection equipment has the phenomena that the sample adding of a sample, liquid, staining solution, an antibody and the like by using a disposable suction head is not accurate enough, and the suction head is hung, dropped, leaked or even dropped. The application of sample, liquid feeding, use conventional suction head to appear in the transfer process among the medical automation equipment: the application of sample is not accurate, hanging liquid, dropping liquid, weeping, fall the conventional phenomenon of suction head, can bring a lot of not good phenomena: the sample adding is not accurate, so that the reaction between different reagent liquid medicines is excessive or insufficient, and the reagent is wasted; hanging liquid, dropping liquid, leaking liquid and dropping a suction head can cause the pollution of a table top, the cross contamination of patient samples, the pollution among reagents, the omission and the like. The problem that the sample adding liquid needle is directly connected with a micro pump to add samples by a large part of medical automatic detection equipment is solved when different reagents are added, the problem that the inner cavity and the outer surface of the sample adding liquid needle (also called a liquid transferring needle or a liquid needle) are cleaned thoroughly to avoid cross contamination is solved, cleaning media, complex structures, steps and the like need to be considered, the original simple sample adding is more complicated, and the development progress of medical equipment is influenced.
After long studies, plastic type tips (often PE tips) have been the main cause of this phenomenon: on one hand: the sealing between the liquid needle and the suction head is not good enough, the precision requirement of the liquid needle is extremely high, the manufacturing process of the liquid needle is reexamined, and the manufacturing cost of the liquid needle is high; on the other hand, the suction head is not easy to be tightly sealed with the liquid needle, which is one of the important reasons that the structure of the conventional suction head can cause poor sealing, the outer ring of the conventional suction head has transverse diameter, thick opening and smooth inner wall, the liquid needle is driven by the motor to be pricked downwards and the suction head opening is closed by hard-to-hard impact, so that the motor can jump, and the liquid needle and the inner wall of the suction head opening are in surface friction and are sealed by surfaces.
[ Utility model ] content
The utility model aims to overcome the defects of the prior art, and provides a disposable suction head used by medical automation equipment, which has elasticity, particularly good contraction elasticity of a splicing pipe head butted with a liquid needle, and can reduce the hard damage of the liquid needle and the suction head to a motor caused by hard collision, lighten the load of the motor and avoid the jumping of the motor; the liquid needle has good tightness and no air leakage, and can reduce the process and technical requirements for manufacturing the liquid needle and the manufacturing cost of the liquid needle.
The utility model discloses a realize through following technical scheme:
the disposable suction head for medical automation equipment comprises a pipe body, and a plug pipe head and a conical suction nozzle which are respectively positioned at two ends of the pipe body, and is characterized in that the plug pipe head can be deformed under pressure.
The disposable suction head for the medical automatic equipment is characterized in that the wall thickness of the pipe head is 0.3-0.6 mm.
The disposable suction head for the medical automatic equipment is characterized in that the outer wall of the inserting pipe head is provided with at least six longitudinal convex ribs which are uniformly distributed on the periphery of the inserting pipe head. The longitudinal ribs are preferably 6-12.
The disposable suction head for the medical automatic equipment is characterized in that at least two annular convex ribs are arranged on the inner wall of the inserting pipe head, and the distance between every two adjacent annular convex ribs is 0.1-0.3 mm. The preferred annular convex ribs are 2-8, and are axially and uniformly distributed on the inner peripheral wall of the splicing pipe joint. Further preferably, the annular ribs are preferably axially and uniformly distributed on the upper part of the inner peripheral wall of the inserting pipe head.
The disposable suction head for the medical automatic equipment is characterized in that each annular convex rib is in a closed circular ring shape, the central points of a plurality of annular convex ribs are all on a straight line, and the straight line is superposed with or parallel to the central line of the suction head and infinitely close to the central line of the suction head. Preferably, the axes of the plurality of annular convex ribs are coaxial with the plug-in pipe head, the pipe body and the conical suction nozzle.
The disposable suction head for the medical automatic equipment is characterized in that the outer diameter of the pipe body is 0.1-0.4 mm smaller than the outer diameter of the lower end of the plug pipe head.
The disposable suction head for the medical automatic equipment is characterized in that the inserting pipe head is a circular truncated cone-shaped pipe head with a large upper part and a small lower part.
The disposable suction head for the medical automatic equipment is characterized in that the outer diameter of an opening at the upper end of the inserting pipe head is 7.5-9.5 mm, the inner diameter is 7.2-9.0 mm, the outer diameter of the lower end of the inserting pipe head is 7.2-9.0 mm, and the inner diameter is 7.0-8.7 mm.
The disposable suction head for the medical automatic equipment is characterized in that the outer diameter of the tube body is 6.5-8.5 mm.
The disposable suction head for the medical automatic equipment is characterized in that the tube body, the plug tube head and the conical suction nozzle are integrally formed.
Compared with the prior art, the utility model discloses there is following advantage:
the utility model discloses a suction head design compensaties the market suction head defect, makes suction head and liquid needle joint position bayonet tube head attenuation, and the bayonet tube head can keep the gas tightness with liquid needle tight fit, prevents gas leakage, dropping liquid or suction head and drops, prevents cross contamination, increases the life of liquid needle and power device motor simultaneously.
The utility model discloses the connector outer wall sets up vertical protruding muscle, give the connector of thin wall a definite strength, further improve the elasticity inflation and the shrink performance of connector simultaneously, reduce the hard damage of suction head, many horizontal ring type protruding muscle of connector inner wall, from the upper strata to the lower floor reduce gradually, and the central point interconnect of every ring type protruding muscle is on a straight line, this straight line and with suction head central line coincidence relation, when pricking the suction head under the liquid needle, many ring type protruding muscle form the different internal diameter of multilayer "o" type circle parcel liquid needle, it is sealed with the liquid needle and reaches multi-level "o" type sealedly, therefore can not leak gas, thereby multi-level seal structure makes the accurate conduction of micropump inhale appearance, give appearance volume.
[ description of the drawings ]
Fig. 1 is one of the schematic three-dimensional structures of the present invention;
fig. 2 is a second schematic perspective view of the present invention.
[ detailed description ] embodiments
The invention will be further explained with reference to the drawings in the following description:
as shown in fig. 1-2, a disposable suction head for medical automation equipment comprises a tube body 1, and a plug tube head 2 and a conical suction nozzle 3 respectively located at two ends of the tube body 1, wherein the end of the plug tube head 2 can be deformed under pressure.
Preferably, the wall thickness of the pipe of the plug pipe joint 2 is 0.3-0.6 mm; the wall thickness of the inserting pipe head 2 is preferably 0.3-0.5 mm; the wall thickness of the inserting pipe head 2 is preferably 0.3-0.4 mm; the wall thickness of the inserting pipe head 2 is preferably 0.4-0.6 mm; the wall thickness of the inserting pipe head 2 is preferably 0.5-0.6 mm; the wall thickness of the plug 2 is preferably 0.4 to 0.5 mm. The plug connector head is thin enough to increase the transverse elasticity of the butt joint part of the suction head and the liquid needle.
Preferably, the insertion pipe joint 2 is a circular truncated cone-shaped pipe with a large upper part and a small lower part, and is more beneficial to quickly positioning, inserting and taking the suction head and tightly matching with the liquid needle.
Further, the outer wall of the plug pipe head 2 is provided with at least 6 longitudinal ribs 21, preferably 6 to 12 longitudinal ribs 21, which are uniformly distributed on the periphery of the plug pipe head 2, so that the opening and closing elasticity of the plug pipe head 2 can be enhanced. When the insertion tube head 2 is butted with the liquid needle, certain strength is ensured when the insertion tube head 2 is deformed under pressure, the phenomenon that the insertion tube head 2 is excessively deformed under pressure or cracked to influence the insertion and the taking of the suction head is avoided, and meanwhile, the insertion tube head 2 can be tightly attached to the liquid needle due to the shrinkage performance of the insertion tube head.
Furthermore, the inner wall of the plug pipe head 2 is provided with at least two annular convex ribs 22, the annular convex ribs 22 are annular, preferably closed perfect circular annular, and are coaxial with the plug pipe head 2, and the distance between adjacent annular convex ribs is 0.1-0.3 mm. The annular ribs 22 are preferably 2-6 radial annular ribs, which gradually decrease from the upper layer to the lower layer of the plug tube head 2 and are distributed in a V-shaped axial direction, and because the utility model discloses wholly be transparent material, therefore, the annular ribs 22 can also be seen outside the suction head. The setting up of the protruding muscle of annular 22 has reduced the frictional force between liquid needle and the suction head, and the frictional force of pricking down of reducible motor drive liquid needle simultaneously, and traditional suction head frictional force mainly produces the friction at needle and suction head inner wall, the utility model discloses well frictional force mainly produces on the protruding muscle of many coaxial ring type 22 of liquid needle and 2 inner walls of bayonet tube head, and the smooth edge of suction head inner chamber only produces secondary frictional force. When butt joint with the liquid needle like this, be favorable to the liquid needle tight fit to insert the suction head, prevent to drop, the liquid needle can be tightly surrounded as the axis with the liquid needle to many coaxial ring type convex ribs 22 of different diameters in the suction head simultaneously, moves down along with the liquid needle, forms multilayer sealing layer structure, isolated outside air, and the pump avoids leaking gas and the negative pressure loss that causes when drawing liquid, and leads to the phenomenon such as sample absorption volume inaccurate, syringe needle string liquid, dropping liquid, drop suction head.
When the connector 2 is a circular truncated cone-shaped tube with a large top and a small bottom, the plurality of annular ribs 22 are preferably arranged on the upper portion of the inner wall of the connector 2, so that the elasticity of the port portion of the connector 2 is improved, and the tight fit sealing performance of the connector and the liquid needle is improved.
Furthermore, the outer diameter of an opening at the upper end of the plug pipe joint 2 is 7.5-9.5 mm, and the inner diameter is 7.2-9.0 mm; the outer diameter of an opening at the upper end of the plug-in pipe head 2 is preferably 7.5-9.3 mm, and the inner diameter is 7.2-8.8 mm; the outer diameter of an opening at the upper end of the plug-in pipe head 2 is 7.5-9.0 mm, and the inner diameter is 7.2-8.5 mm; the outer diameter of an opening at the upper end of the plug-in pipe head 2 is 7.5-8.8 mm, and the inner diameter is 7.2-8.2. mm; the outer diameter of an opening at the upper end of the plug-in pipe head 2 is 7.5-8.3 mm, and the inner diameter is 7.2-8.0 mm; the outer diameter of an opening at the upper end of the plug-in pipe head 2 is 7.5-7.8 mm, and the inner diameter is 7.2-7.5 mm; the outer diameter of an opening at the upper end of the plug-in pipe head 2 is 8.0-9.5 mm, and the inner diameter is 7.5-9.0 mm; the outer diameter of an opening at the upper end of the plug-in pipe head 2 is 8.5-9.5 mm, and the inner diameter is 7.8-9.0 mm; the outer diameter of an opening at the upper end of the plug-in pipe head 2 is 9.0-9.5 mm, and the inner diameter is 8.3-9.0 mm; the outer diameter of the upper end opening of the plug-in pipe head 2 is 8.0-9.0 mm, and the inner diameter is 7.5-8.5 mm.
Furthermore, the outer diameter of the lower end of the plug pipe joint 2 is 7.2-9.0 mm, and the inner diameter is 7.0-8.7 mm; preferably, the outer diameter of the lower end of the plug pipe joint 2 is 7.2-8.8 mm, and the inner diameter is 7.0-8.5 mm; preferably, the outer diameter of the lower end of the plug pipe joint 2 is 7.2-8.5 mm, and the inner diameter is 7.0-8.3 mm; preferably, the outer diameter of the lower end of the plug pipe joint 2 is 7.2-8.0 mm, and the inner diameter is 7.0-7.8 mm; preferably, the outer diameter of the lower end of the plug pipe joint 2 is 7.2-7.6 mm, and the inner diameter is 7.0-7.3 mm; preferably, the outer diameter of the lower end of the plug pipe joint 2 is 7.8-9.0 mm, and the inner diameter is 7.5-8.7 mm; preferably, the outer diameter of the lower end of the plug pipe joint 2 is 8.3-9.0 mm, and the inner diameter is 8.0-8.7 mm; preferably, the outer diameter of the lower end of the plug pipe joint 2 is 8.5-9.0 mm, and the inner diameter is 8.0-8.7 mm; preferably, the outer diameter of the lower end of the plug pipe joint 2 is 7.8-8.4 mm, and the inner diameter is 7.5-8.7 mm.
The insertion tube head 2 is limited by the wall thickness and the inner diameter and the outer diameter, the wall body of the insertion tube head 2 is guaranteed to have certain strength, the liquid needle can be loaded and inserted without cracking, meanwhile, certain elastic deformation is achieved, the annular convex rib 22 on the inner wall of the insertion tube head 2 and the longitudinal convex rib 21 on the outer wall of the insertion tube head 2 further improve the opening and closing elasticity of the insertion tube head 2, the insertion load force of a motor is reduced, the liquid needle is buffered, hard damage to the liquid needle and the power drive of the liquid needle is reduced, the insertion tube head can be tightly matched with the liquid needle after insertion, air leakage and liquid leakage are prevented, and the suction head is prevented from falling off. The utility model discloses a plug pipe head 2 applys external force with the hand, can become flat oval by pipe shape elastic deformation, cancel external force after, reconversion at once, and from plug pipe head 2 and 1 seam crossing of body, manual external force of applying in body 1, the wall body elastic buffer, nevertheless do not have deformation.
Further, the outer diameter of the pipe body 1 is smaller than the outer diameter of the lower end of the plug 2 by 0.1 to 0.4mm, and preferably, the outer diameter of the pipe body 1 is 6.5 to 8.5 mm. The outer wall evagination of connector 2 is in body 1, when inserting the suction head, and the jack on the suction head frame of placing the suction head can support in the bottom of connector 2, and makes body 1 stretch into the suction head frame after, toper suction nozzle 3 even can not touch the end because of the decline pressure of liquid needle and cause the damage yet, makes things convenient for medical automation equipment to load in batches, changes the disposable suction head of present case.
Preferably, the aperture of the liquid suction hole 31 of the conical suction nozzle 3 is 0.3-1.2 mm. The smooth liquid suction is ensured, and the elastic deformation of the suction head is kept.
Preferably, the bayonet tube 2 is integrally formed with the tube body 1 and the conical suction nozzle 3, the inner wall of the whole suction nozzle is smooth except for the annular convex rib 22, and the outer wall of the suction nozzle is in a three-section taper shape, so that the strength of the tube body 1 and the conical suction nozzle 3 is ensured.
Claims (10)
1. The utility model provides a disposable suction head that medical automation equipment used, includes body (1) and is located respectively body (1) the plug tube head (2) and the toper suction nozzle (3) at both ends, its characterized in that: the plug pipe joint (2) can be deformed under pressure.
2. The disposable pipette tip for medical automation equipment according to claim 1 where the wall thickness of the cannula tip (2) is 0.3 to 0.6 mm.
3. The disposable pipette tip used for medical automation equipment according to claim 1 or 2, characterized in that the outer wall of the insertion tube head (2) is provided with at least six longitudinal ribs (21), which are uniformly distributed on the periphery of the insertion tube head (2).
4. The disposable pipette tip used in medical automation equipment according to claim 1 or 2, characterized in that the inner wall of the insertion tube head (2) is provided with at least two annular ribs (22), and the distance between adjacent annular ribs (22) is 0.1 to 0.3 mm.
5. The disposable pipette tip for medical automation equipment according to claim 4 where each ring-shaped rib (22) is a closed circular ring and the center points of the plurality of ring-shaped ribs (22) are on a straight line which is coincident with or parallel to the center line of the pipette tip and infinitely close to the center line.
6. The disposable tip for medical automation equipment according to claim 1 or 2, characterized in that the outer diameter of the tube body (1) is 0.1 to 0.4mm smaller than the outer diameter of the lower end of the connector (2).
7. The disposable pipette tip used in the medical automation equipment according to claim 1, characterized in that the insertion tip (2) is a circular truncated cone-shaped tip with a large top and a small bottom.
8. The disposable pipette tip used in the medical automation equipment as claimed in claim 1 or 7, wherein the outer diameter of the upper opening of the insertion tube head (2) is 7.5 to 9.5mm, the inner diameter is 7.2 to 9.0mm, the outer diameter of the lower opening of the insertion tube head (2) is 7.2 to 9.0mm, and the inner diameter is 7.0 to 8.7 mm.
9. The disposable tip for medical automation equipment according to claim 8 where the outer diameter of the tube (1) is 6.5 to 8.5 mm.
10. The disposable suction head for medical automation equipment according to claim 1 is characterized in that the tube body (1), the plug tube head (2) and the conical suction nozzle (3) are formed integrally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020835099.8U CN212364337U (en) | 2020-05-18 | 2020-05-18 | Disposable suction head for medical automation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020835099.8U CN212364337U (en) | 2020-05-18 | 2020-05-18 | Disposable suction head for medical automation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212364337U true CN212364337U (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020835099.8U Active CN212364337U (en) | 2020-05-18 | 2020-05-18 | Disposable suction head for medical automation equipment |
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| Country | Link |
|---|---|
| CN (1) | CN212364337U (en) |
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2020
- 2020-05-18 CN CN202020835099.8U patent/CN212364337U/en active Active
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