CN217548639U - Blood drawing-back empty needle for clinical artery kit - Google Patents
Blood drawing-back empty needle for clinical artery kit Download PDFInfo
- Publication number
- CN217548639U CN217548639U CN202220591100.6U CN202220591100U CN217548639U CN 217548639 U CN217548639 U CN 217548639U CN 202220591100 U CN202220591100 U CN 202220591100U CN 217548639 U CN217548639 U CN 217548639U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- needle
- piston
- wall
- rectangular rod
- 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
Links
- 210000001367 artery Anatomy 0.000 title claims abstract description 28
- 239000008280 blood Substances 0.000 title claims abstract description 26
- 210000004369 blood Anatomy 0.000 title claims abstract description 26
- 239000007787 solid Substances 0.000 claims abstract description 6
- 230000006978 adaptation Effects 0.000 claims description 3
- 208000007536 Thrombosis Diseases 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a draw back blood technical field, specifically be a draw back blood empty needle that clinical artery external member used, including the cylinder, the outer wall right-hand member of cylinder is equipped with solid fixed ring, sliding connection has the piston in the cylinder, the middle part on piston right side is equipped with the rectangle pole, the one end that the piston was kept away from to the rectangle pole extends to the outside of cylinder right-hand member and is connected with the pressure board, the right-hand member outer wall of rectangle pole and the fixed cover in position that is close to the pressure board are equipped with circular fixed plate, it is flexible to be equipped with the ripple between circular fixed plate and the solid fixed ring, and the tip that the rectangle pole extends to the cylinder right-hand member outside is located the flexible inside of ripple, the left end of cylinder is equipped with the adapter sleeve, the inner wall of adapter sleeve is seted up there is the internal thread. The blood drawing hollow needle is in threaded connection with the interface of the artery suite through the connecting sleeve, so that the situation that the hollow needle is separated from the interface of the artery suite and falls off is prevented; the space between the right end of the needle cylinder and the round fixed plate is sealed by the corrugated expansion pipe, and the rectangular rod is not influenced to drive the piston to move.
Description
Technical Field
The utility model relates to a draw back blood technical field, specifically be a draw back blood empty needle that clinical artery external member used.
Background
Clinically, because the artery returns the blood inside and often has the blood clot, in order to get rid of the blood clot, need use the empty needle to take out the blood that returns, but current empty needle is direct cover on the interface of artery external member, just can lead to the interface of empty needle and artery external member to take place to break away from and drop when the patient stands up, because the push rod part of empty needle exposes outside for a long time in addition, makes the inside blood of empty needle receive the infection easily. In view of this, we propose a blood withdrawal empty needle for a clinical arterial set.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a clinical empty needle of drawing back blood that artery external member was used to it is the direct cover on the interface of artery external member to propose current empty needle in the above-mentioned background art to solve, takes place to break away from and drops easily, moreover because the push rod part of empty needle exposes in the external world for a long time, makes the inside blood of empty needle receive the problem of infection easily.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a vacant needle of drawing back blood that clinical artery external member was used, includes the cylinder, the outer wall of cylinder and the position that is located the right-hand member are equipped with solid fixed ring, sliding connection has the piston in the cylinder, the middle part on piston right side is equipped with the rectangle pole, the one end that the piston was kept away from to the rectangle pole extends to the outside of cylinder right-hand member and is connected with the pressing plate, the right-hand member outer wall of rectangle pole and the fixed cover in position that is close to the pressing plate are equipped with circular fixed plate, be equipped with the flexible pipe of ripple between circular fixed plate and the solid fixed ring, and the tip that the rectangle pole extends to the cylinder right-hand member outside is located the flexible inside of ripple, the left end of cylinder is equipped with the adapter sleeve, the internal thread with artery external member interface outside screw thread looks adaptation is seted up to the inner wall of adapter sleeve.
Preferably, the outer wall of the fixing ring is provided with two finger handles which are symmetrically distributed.
Preferably, a circular limiting plate is fixedly arranged in the needle cylinder and close to the right end, and a regular rectangular hole for the rectangular rod to penetrate through is formed in the side face of the circular limiting plate.
Preferably, the cross section of the rectangular rod is of a regular rectangular structure, and the side length of the cross section of the rectangular rod is matched with the side length of the regular rectangular hole.
Preferably, semicircular grooves are formed in the four outer sides of the rectangular rod and located between the piston and the circular fixing plate.
Preferably, a connecting hole is formed in the left end of the needle cylinder, a connecting pipe is arranged in the connecting hole, the left end of the connecting pipe penetrates through the connecting sleeve and extends to the outside, the length of the connecting pipe is larger than that of the connecting sleeve, and a gap is formed between the outer wall of the connecting pipe and the inner wall of the connecting sleeve.
Compared with the prior art, the beneficial effects of the utility model are that:
the blood drawing hollow needle for the clinical artery external member is in threaded connection with the interface of the artery external member through the arranged connecting sleeve, so that the situation that the interface of the hollow needle and the artery external member is separated and falls off is prevented, and the stability and the sealing property of the connecting part are ensured; the space between the right end of the needle cylinder and the round fixed plate is sealed through the arranged corrugated expansion pipe, and the rectangular rod is not influenced to drive the piston to move, so that the interior of the hollow needle is prevented from being exposed outside for a long time, and blood in the hollow needle is prevented from being infected; can prevent through the circular limiting plate that sets up that the user from outwards excessively pulling the rectangular rod, prevents that the flexible pipe of ripple from damaging.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a part of the structure of the present invention;
fig. 3 is a second partial schematic structural view of the present invention;
fig. 4 is a schematic view of the assembly structure of the needle cylinder, the connecting sleeve and the connecting pipe of the present invention.
In the figure: the device comprises a needle cylinder 1, a circular limiting plate 10, a regular rectangular hole 100, a fixing ring 11, a finger handle 12, a connecting hole 13, a rectangular rod 2, a semicircular groove 20, a circular fixing plate 21, a piston 3, a pressing plate 4, a corrugated expansion pipe 5, a connecting sleeve 6, internal threads 60 and a connecting pipe 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in 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 in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-4, the present invention provides a technical solution:
a blood drawing-back empty needle for a clinical artery kit comprises a needle cylinder 1, wherein a fixing ring 11 is arranged on the outer wall of the needle cylinder 1 and positioned at the right end of the needle cylinder, a piston 3 is connected in the needle cylinder 1 in a sliding manner, a rectangular rod 2 is arranged in the middle of the right side of the piston 3, one end, far away from the piston 3, of the rectangular rod 2 extends to the outer side of the right end of the needle cylinder 1 and is connected with a pressing plate 4, and a user can push and pull the rectangular rod 2 conveniently; a circular fixing plate 21 is fixedly sleeved on the outer wall of the right end of the rectangular rod 2 and close to the pressing plate 4, a corrugated expansion tube 5 is arranged between the circular fixing plate 21 and the fixing ring 11, and the end part of the rectangular rod 2 extending to the outer side of the right end of the needle cylinder 1 is positioned inside the corrugated expansion tube 5, so that the fixing ring 11 and the circular fixing plate 21 form a sealed space to seal the space between the right end of the needle cylinder 1 and the circular fixing plate 21, and the rectangular rod 2 is not influenced to drive the piston to move, thereby preventing the inside of the hollow needle from being exposed outside for a long time and preventing the blood inside the hollow needle from being infected; the left end of the needle cylinder 1 is provided with the connecting sleeve 6, the inner wall of the connecting sleeve 6 is provided with the inner thread 60 matched with the thread on the outer side of the connector of the artery suite, so that the connecting sleeve 6 is in threaded connection with the connector of the artery suite, the empty needle is prevented from being separated from the connector of the artery suite and falling, and the stability and the sealing performance of the connecting part are ensured.
In this embodiment, the outer wall of the fixing ring 11 is provided with two finger handles 12 which are symmetrically distributed, so that the user can operate the finger handles with one hand conveniently.
Specifically, in the cylinder 1 and be close to the fixed position of right-hand member and be equipped with circular limiting plate 10, the side of circular limiting plate 10 is offered and is used for the regular rectangle hole 100 that rectangular rod 2 passed, and through the circular limiting plate 10 that sets up, to restricting of piston 3, can prevent that the user from outwards excessively pulling rectangular rod 2, prevents that the flexible pipe 5 of ripple from damaging.
Furthermore, the cross section of the rectangular rod 2 is of a regular rectangular structure, and the side length of the cross section of the rectangular rod 2 is matched with the side length of the regular rectangular hole 100, so that the rectangular rod 2 can be positioned when moving.
Further, semicircular grooves 20 are formed in four outer sides of the rectangular rod 2 and located between the piston 3 and the circular fixing plate 21, so that gas can pass through the connecting position of the rectangular rod 2 and the circular limiting plate 10 through the four semicircular grooves 20, and the piston 3 can move smoothly.
Further, connecting hole 13 has been seted up to the left end of cylinder 1, be equipped with connecting pipe 7 in the connecting hole 13, the left end of connecting pipe 7 passes adapter sleeve 6 and extends to the external world, the length of connecting pipe 7 is greater than the length of adapter sleeve 6, be equipped with the clearance between the outer wall of connecting pipe 7 and the inner wall of adapter sleeve 6, the external diameter of connecting pipe 7 and the internal diameter looks adaptation of artery external member interface, further improve connection stability, prevent adapter sleeve 6 and artery external member interface slippage.
When the empty needle for drawing back blood for the clinical artery external member of the embodiment is used, a medical worker connects the connecting sleeve 6 with the interface of the artery external member in a threaded manner, and at the moment, the connecting pipe 7 is positioned in the interface of the artery external member, so that the condition that the interface of the empty needle and the artery external member is slipped off is effectively prevented; when medical personnel used this empty needle to take back blood to the patient, medical personnel pulled when pressing according to board 4 outside removal, drove piston 3 and removed to get rid of the blood clot for the patient, at this moment, the flexible pipe 5 of ripple extends, and under the flexible pipe 5's of ripple effect, the space between syringe 1 and circular fixed plate 21 is sealed moreover, thereby effectively prevents that the inside of empty needle from exposing for a long time in the external world, avoids the inside blood of this empty needle to receive the infection.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A blood withdrawal hollow needle for a clinical artery kit is characterized in that: including cylinder (1), the outer wall of cylinder (1) and the position that is located the right-hand member are equipped with solid fixed ring (11), sliding connection has piston (3) in cylinder (1), the middle part on piston (3) right side is equipped with rectangular rod (2), the one end that piston (3) were kept away from in rectangular rod (2) extends to the outside of cylinder (1) right-hand member and is connected with and presses clamp plate (4), the right-hand member outer wall of rectangular rod (2) and the fixed position cover that is close to press clamp plate (4) are equipped with circular fixed plate (21), be equipped with flexible pipe (5) of ripple between circular fixed plate (21) and solid fixed ring (11), and the tip that rectangular rod (2) extended to the cylinder (1) right-hand member outside is located the inside of the flexible pipe (5) of ripple, the left end of cylinder (1) is equipped with adapter sleeve (6), internal thread (60) with artery external member interface outside screw thread looks adaptation are seted up to the inner wall of adapter sleeve (6).
2. The evacuated blood needle for a clinical arterial set according to claim 1, characterized in that: the outer wall of the fixing ring (11) is provided with two finger handles (12) which are symmetrically distributed.
3. The evacuated blood needle for a clinical arterial set according to claim 1, characterized in that: a circular limiting plate (10) is fixedly arranged in the needle cylinder (1) and close to the right end, and a regular rectangular hole (100) for the rectangular rod (2) to penetrate through is formed in the side face of the circular limiting plate (10).
4. The evacuated blood needle for a clinical arterial set according to claim 3, characterized in that: the cross section of the rectangular rod (2) is of a regular rectangular structure, and the side length of the cross section of the rectangular rod (2) is matched with the side length of the regular rectangular hole (100).
5. The evacuated blood needle for a clinical arterial set according to claim 1, characterized in that: semicircular grooves (20) are formed in the four outer sides of the rectangular rod (2) and in positions between the piston (3) and the circular fixing plate (21).
6. The evacuated empty needle for clinical arterial set according to claim 1, characterized in that: connecting hole (13) have been seted up to the left end of cylinder (1), be equipped with connecting pipe (7) in connecting hole (13), the left end of connecting pipe (7) passes adapter sleeve (6) and extends to the external world, the length of connecting pipe (7) is greater than the length of adapter sleeve (6), be equipped with the clearance between the outer wall of connecting pipe (7) and the inner wall of adapter sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220591100.6U CN217548639U (en) | 2022-03-17 | 2022-03-17 | Blood drawing-back empty needle for clinical artery kit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220591100.6U CN217548639U (en) | 2022-03-17 | 2022-03-17 | Blood drawing-back empty needle for clinical artery kit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217548639U true CN217548639U (en) | 2022-10-11 |
Family
ID=83469306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220591100.6U Expired - Fee Related CN217548639U (en) | 2022-03-17 | 2022-03-17 | Blood drawing-back empty needle for clinical artery kit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217548639U (en) |
-
2022
- 2022-03-17 CN CN202220591100.6U patent/CN217548639U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210408480U (en) | Lung biopsy device for lung cancer patient | |
| CN217548639U (en) | Blood drawing-back empty needle for clinical artery kit | |
| CN202605427U (en) | Remaining needle catheter component with anti-reverse-current valve | |
| CN211327473U (en) | Syringe with a needle | |
| CN116473553A (en) | Hemodialysis sampling device | |
| CN202086482U (en) | Disposable spiral type vacuum blood taking needle | |
| CN209475235U (en) | Manpower sputum aspirator and fixation device for the sputum aspirator | |
| EP4018907A1 (en) | Disposable spiral electrode for fetal scalp | |
| CN215424662U (en) | Needleless blood sampling test tube | |
| CN213030803U (en) | Cardiovascular intervention local protection device | |
| CN215738990U (en) | Blood sampling device for hemodialysis nursing | |
| CN211512954U (en) | Needle tube convenient to draw | |
| CN215017317U (en) | Artery puncture needle with lumen sealing function | |
| CN210095671U (en) | Anti-pulling-off structure of endoscopic injection needle | |
| CN212755659U (en) | AIDS blood extraction device for preventing cross infection | |
| CN215078909U (en) | Portable sputum sampling device | |
| CN213608728U (en) | Hydrops draw-out device of neurosurgery clinical usefulness convenient to operation | |
| CN215134225U (en) | Novel connector for connecting central venous catheter and drainage bag | |
| CN219440149U (en) | Aspirator pipe joint device convenient to dredge and prevent blocking up | |
| CN212186642U (en) | Internal fistula puncture needle with side branch | |
| CN214105466U (en) | Transfusion needle | |
| CN208552642U (en) | A kind of multi-functional thoracoscope aspirator | |
| CN219022489U (en) | Negative pressure drainage device | |
| CN215134165U (en) | Novel medical drainage device | |
| CN215078814U (en) | Stethoscope for pediatrician |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20221011 |