CN210130874U - Syringe for retaining specimen - Google Patents

Syringe for retaining specimen Download PDF

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Publication number
CN210130874U
CN210130874U CN201822012793.5U CN201822012793U CN210130874U CN 210130874 U CN210130874 U CN 210130874U CN 201822012793 U CN201822012793 U CN 201822012793U CN 210130874 U CN210130874 U CN 210130874U
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CN
China
Prior art keywords
cylinder body
cylinder
push rod
barrel
syringe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201822012793.5U
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Chinese (zh)
Inventor
赵领超
曹群芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renmin Hospital of Wuhan University
Original Assignee
Renmin Hospital of Wuhan University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renmin Hospital of Wuhan University filed Critical Renmin Hospital of Wuhan University
Priority to CN201822012793.5U priority Critical patent/CN210130874U/en
Application granted granted Critical
Publication of CN210130874U publication Critical patent/CN210130874U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a stay syringe of getting sample, include: the needle cylinder comprises a first cylinder body and a second cylinder body, one end of the second cylinder body extends into the first cylinder body from one end of the first cylinder body, the other end of the second cylinder body is hermetically connected with one end of the first cylinder body, a needle head communicated with the interior of the first cylinder body is arranged at the other end of the first cylinder body, the first cylinder body is communicated with the second cylinder body through a first through hole formed in the side wall of the other end of the second cylinder body, and the second cylinder body is communicated with the exterior of the needle cylinder through a second through hole formed in the side wall of one end of the second cylinder body; and one end of the push rod extends into the second cylinder body from the other end of the second cylinder body and can slide in the second cylinder body. The utility model provides a cavity and rear chamber before the formation can be separated with the second barrel to the sealing washer when syringe is used for gathering the sample, and the sealing washer moves ahead when pressing the push rod, and the increase of rear chamber volume produces the negative pressure to can gather the sample.

Description

Syringe for retaining specimen
Technical Field
The utility model relates to an injector especially relates to an injector of getting sample stays.
Background
At present, when some patients need to collect pathological samples before and after diagnosis or treatment, medical staff generally use an injector to collect the samples, but when a common injector is used for sucking the collected samples through percutaneous puncture negative pressure, the samples are collected through the negative pressure generated by pulling a push rod, the stroke of pulling the push rod is not easy to control, the generated negative pressure is unstable, and if the negative pressure is too small, the required samples are not easy to collect; if the negative pressure is too large, the collected sample is easy to be sucked into the injector due to the sudden change of the air pressure at the moment that the needle head is pulled out of the skin after the sample is collected successfully, so that a lot of inconvenience is brought to an operator; meanwhile, the outer wall of the syringe cylinder of the common injector is smooth, and the common injector is difficult to hold and exert force during suction; the specimen collection by adopting the suction mode is inconvenient to use.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems existing in the existing specimen collection, the injector which is convenient to use and strong in controllability and used for taking the specimen is provided, and the problems are effectively solved.
The specific technical scheme is as follows:
a syringe for retaining a specimen, characterized by comprising:
the needle cylinder comprises a first cylinder body and a second cylinder body, one end of the second cylinder body extends into the first cylinder body from one end of the first cylinder body, the other end of the second cylinder body is hermetically connected with one end of the first cylinder body, a needle head communicated with the interior of the first cylinder body is arranged at the other end of the first cylinder body, the first cylinder body is communicated with the second cylinder body through a first through hole formed in the side wall of the other end of the second cylinder body, and the second cylinder body is communicated with the exterior of the needle cylinder through a second through hole formed in the side wall of one end of the second cylinder body; and
and one end of the push rod extends into the second cylinder body from the other end of the second cylinder body and can slide in the second cylinder body, and one end of the push rod, which is arranged in the second cylinder body, is provided with a sealing ring for slidably sealing the push rod and the inner wall of the second cylinder body.
The beneficial effects of the above technical scheme are: the utility model provides a cavity and rear chamber before the formation can be separated with the second barrel to the sealing washer when syringe is used for gathering the sample, and the sealing washer moves ahead when pressing the push rod, and the increase of rear chamber volume produces the negative pressure to can gather the sample.
The utility model discloses in improve traditional pulling push-down sample collection system for pressing push-down negative pressure sample collection system, have the high and convenient to use's of controllability characteristics.
The above-mentioned syringe for taking a specimen has the feature that the syringe further includes a distance assembly for limiting the sliding distance of the push rod, and the distance assembly is provided on the first barrel.
The beneficial effects of the further scheme are as follows: the distance assembly capable of limiting the pushing distance of the push rod is arranged, so that the pressing stroke of the push rod is controllable, and the controllability of the injector is improved.
The above-mentioned syringe for taking a specimen still has the feature that the distance assembly includes a first screw rod and a movable nut screwed on the first screw rod, one end of the first screw rod is connected to one end of the first barrel, and the handle portion of the push rod can abut against the movable nut when the push rod slides and approaches one end of the first screw rod.
The beneficial effects of the further scheme are as follows: the movable position of the push rod is limited through the movable nut, and the structure is simple and the distance is convenient.
The injector for keeping the specimen has the characteristics that the distance component comprises a second screw and a top block, the second screw is in threaded connection with one end of the second barrel, one end of the second screw extends into the second barrel, the top block is arranged at one end of the second screw, and when the push rod slides and approaches to the other end of the first barrel, one end of the push rod can be abutted against the top block.
The beneficial effects of the further scheme are as follows: the position of kicking block in the second barrel is adjusted to the accessible rotatory second screw rod to the position of the removal of restriction push rod, simple structure and distance are convenient.
The above-mentioned syringe for taking a specimen has a feature that the cylinder is made of a transparent material.
The beneficial effects of the further scheme are as follows: the syringe is made of transparent material, and the condition in the syringe can be observed clearly when using.
The syringe for taking the specimen is also characterized in that the side wall of the first cylinder is provided with scale marks at uniform intervals.
The beneficial effect of the two-step scheme is as follows: the sample collection amount can be conveniently identified through the scale marks.
The above-mentioned syringe for retaining a specimen is further characterized in that the plunger has a hollow structure.
The beneficial effect of the two-step scheme is as follows: the weight of the injector is reduced, the use experience is improved, and the cost is saved.
Drawings
Fig. 1 is a schematic front view of a specimen retaining syringe provided in embodiment 1 of the present invention;
fig. 2 is a schematic cross-sectional view of a specimen retaining syringe provided in embodiment 1 of the present invention;
fig. 3 is a schematic front view of a specimen retaining syringe provided in embodiment 2 of the present invention;
fig. 4 is a schematic cross-sectional structural view of a specimen retaining syringe provided in embodiment 2 of the present invention.
In the drawings: 1. a needle cylinder; 11. a first syringe; 12. a second syringe; 121. a first through hole; 122. a second through hole; 2. a needle head; 3. a push rod; 31. a seal ring; 4. a distance assembly; 41. a first screw; 42. a movable nut; 43. a second screw; 44. and (7) a top block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the following specific examples, which should not be construed as limiting the invention.
Example 1
The syringe for reserving a specimen provided in the embodiment includes a syringe 1 made of a transparent material, the syringe 1 includes a first barrel 11 and a second barrel 12, one end of the second barrel 12 extends into the first barrel 11 from one end of the first barrel 11, the other end of the second barrel 12 is hermetically connected with one end of the first barrel 11, the other end of the first barrel 11 is provided with a needle 2 communicated with the inside of the first barrel 11, and the sidewall of the first barrel 11 is provided with scale marks, the first barrel 11 is communicated with the second barrel 12 through a first through hole 121 arranged on the sidewall of the other end of the second barrel 12, and the second barrel 12 is communicated with the outside of the syringe 1 through a second through hole 122 arranged on the sidewall of one end of the second barrel 12; and a push rod 3, one end of the push rod 3 extends into the second cylinder 12 from the other end of the second cylinder 12 and can slide in the second cylinder 12, and one end of the push rod 3 arranged in the second cylinder 12 is provided with a sealing ring 31 for sliding and sealing the push rod 3 and the inner wall of the second cylinder 12, in this embodiment, in order to limit the sliding distance of the push rod 3 in the second cylinder 12, a distance component 4 is specially arranged, which includes a first screw rod 41 and a movable nut 42 connected to the first screw rod 41 in a threaded manner, one end of the first screw rod 41 is connected to one end of the first cylinder 11, and when the push rod 3 slides and approaches one end of the first screw rod 41, the handle part of the push rod 3 can abut against the movable nut 42, on the basis of the above technical solution, in this embodiment, the second nut can be additionally arranged and connected to the first screw rod 41 in a threaded manner, so as to limit the backward sliding distance of the push rod 3, the use feeling and the operation convenience of the injector are improved.
Example 2
The syringe for reserving a specimen provided in the embodiment includes a syringe 1 made of a transparent material, the syringe 1 includes a first barrel 11 and a second barrel 12, one end of the second barrel 12 extends into the first barrel 11 from one end of the first barrel 11 and is hermetically connected with the other end of the first barrel 11, the other end of the second barrel 12 is hermetically connected with one end of the first barrel 11, the other end of the first barrel 11 is provided with a needle 2 communicated with the inside of the first barrel 11, and the sidewall of the first barrel 11 is provided with scale marks, the first barrel 11 is communicated with the second barrel 12 through a first through hole 121 arranged on the sidewall of the other end of the second barrel 12, and the second barrel 12 is communicated with the outside of the syringe 1 through a second through hole 122 arranged on the sidewall of one end of the second barrel 12; and the push rod 3, one end of the push rod 3 extends into the second cylinder 12 from the other end of the second cylinder 12 and can slide in the second cylinder 12, and the end of the push rod 3 arranged in the second cylinder 12 is provided with the sealing ring 31 for sliding and sealing the push rod 3 and the inner wall of the second cylinder 12, in this embodiment, in order to limit the sliding distance of the push rod 3 in the second cylinder 12, the distance assembly 4 is specially arranged and comprises a second screw 43 and a top block 44, the second screw 43 is connected to one end of the second cylinder 12 in a threaded manner, one end of the second screw extends into the second cylinder 12, the top block 44 is arranged at one end of the second screw 43, and when the push rod 3 slides and approaches to the other end of the first cylinder 11, one end of the push rod 3 can abut against the top block 44.
The above is merely a preferred embodiment of the present invention, and not intended to limit the scope and the range of the present invention, and those skilled in the art should be able to realize that all the equivalent substitutions and obvious changes made by the present invention description should be included in the scope of the present invention.

Claims (7)

1. A syringe for retaining a specimen, comprising:
the needle cylinder (1), the needle cylinder (1) comprises a first cylinder body (11) and a second cylinder body (12), one end of the second cylinder body (12) extends into the first cylinder body (11) from one end of the first cylinder body (11), the other end of the second cylinder body (12) is hermetically connected with one end of the first cylinder body (11), a needle (2) communicated with the inside of the first cylinder body (11) is arranged at the other end of the first cylinder body (11), the first cylinder body (11) is communicated with the second cylinder body (12) through a first through hole (121) formed in the side wall of the other end of the second cylinder body (12), and the second cylinder body (12) is communicated with the outside of the needle cylinder (1) through a second through hole (122) formed in the side wall of one end of the second cylinder body (12); and
the one end of push rod (3) by the other end of second barrel (12) stretches into in second barrel (12) and can slide in second barrel (12), just push rod (3) are located one in the second barrel (12) serve be used for with push rod (3) with second barrel (12) inner wall sliding seal's sealing washer (31).
2. The specimen retaining syringe according to claim 1, further comprising a distance assembly (4) for defining a sliding distance of the push rod (3), the distance assembly (4) being provided on the first cylinder (11).
3. The specimen retention syringe according to claim 2, wherein the distance assembly (4) includes a first screw (41) and a movable nut (42) screwed on the first screw (41), one end of the first screw (41) is connected to one end of the first cylinder (11), and the handle portion of the push rod (3) can abut on the movable nut (42) when the push rod (3) slides and approaches one end of the first screw (41).
4. The specimen retention syringe according to claim 2, wherein the distance assembly (4) includes a second screw (43) and a top block (44), the second screw (43) is screwed to one end of the second cylinder (12) and one end of the second screw extends into the second cylinder (12), the top block (44) is provided at one end of the second screw (43), and one end of the push rod (3) can abut against the top block (44) when the push rod (3) slides and approaches the other end of the first cylinder (11).
5. Syringe for taking samples according to any one of claims 1 to 4, characterized in that the needle cylinder (1) is made of transparent material.
6. Syringe for retaining specimens according to claim 5, characterized in that the lateral wall of the first barrel (11) is provided with graduations at regular intervals.
7. Syringe for retaining specimens according to any of claims 1 to 4, characterized in that the said pusher (3) is of hollow construction.
CN201822012793.5U 2018-12-03 2018-12-03 Syringe for retaining specimen Expired - Fee Related CN210130874U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822012793.5U CN210130874U (en) 2018-12-03 2018-12-03 Syringe for retaining specimen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822012793.5U CN210130874U (en) 2018-12-03 2018-12-03 Syringe for retaining specimen

Publications (1)

Publication Number Publication Date
CN210130874U true CN210130874U (en) 2020-03-10

Family

ID=69701803

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822012793.5U Expired - Fee Related CN210130874U (en) 2018-12-03 2018-12-03 Syringe for retaining specimen

Country Status (1)

Country Link
CN (1) CN210130874U (en)

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200310

Termination date: 20201203