CN113577447A - Venipuncture device and using method thereof - Google Patents
Venipuncture device and using method thereof Download PDFInfo
- Publication number
- CN113577447A CN113577447A CN202110872319.3A CN202110872319A CN113577447A CN 113577447 A CN113577447 A CN 113577447A CN 202110872319 A CN202110872319 A CN 202110872319A CN 113577447 A CN113577447 A CN 113577447A
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- push
- catheter
- needle
- duplicate gear
- blood
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- 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
- A61B5/15003—Source of blood for venous or arterial blood
-
- 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
- A61B5/150366—Blood collection bags, e.g. connected to the patient by a catheter comprising means for removing a small sample of collected blood from the bag
-
- 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
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1585—Needle inserters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1586—Holding accessories for holding infusion needles on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1587—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body suitable for being connected to an infusion line after insertion into a patient
Abstract
The invention relates to the field of medical instruments, in particular to a venipuncture device and a using method thereof, wherein the venipuncture device comprises a needle cylinder and a push handle, a support rib is arranged on the push handle and is in sliding connection with the needle cylinder, a piston is arranged at the inner end of the push handle, a needle head is arranged at one end of the needle cylinder, which is far away from the push handle, the needle cylinder is connected with a catheter library, a push wheel is arranged at one side of a catheter, the push wheel is fixed on the needle cylinder through a push wheel shaft, a pinion is fixedly connected with the push wheel shaft and is meshed with a duplicate gear, the duplicate gear is fixed on the needle cylinder through a duplicate gear shaft, the duplicate gear is meshed with a rack, the rack is fixedly connected with the push handle, and the catheter is wound on the push wheel; the invention has simple structure and reasonable design, can take blood for testing while carrying out venipuncture, and relieves the pain of patients.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a venipuncture device and a using method thereof.
Background
The venipuncture is a technique commonly used in clinic, is usually used for blood sampling inspection and transfusion treatment, and is mainly composed of a puncture needle and an outer catheter.
When the venipuncture technique is adopted, the blood in the puncture needle can not return into the body of a patient, the influence on common patients is small, but the body of the patient can be uncomfortable for anemic patients, and the arteriovenous puncture trocar often has the problem of puncture failure in actual use, so that the situations of blood leakage and tube placement failure frequently occur in puncture. The success rate of disposable puncture is lower, has higher requirement for the puncture proficiency, especially for less experienced medical personnel, repeated puncture often increases the pain of patients, brings uneasiness and anxiety to both medical personnel and patients.
Disclosure of Invention
In order to solve the problems in the prior art, a venipuncture device and a using method thereof are provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a venipuncture device, which comprises a needle cylinder and a push handle, wherein a support rib is arranged on the push handle, the support rib is connected with the needle cylinder in a sliding manner, a piston is arranged at the inner end of the push handle, a needle head is arranged at one end of the needle cylinder, which is far away from the push handle, a catheter library is arranged at the top of the needle cylinder, a catheter is wound on the inner wall of the catheter library, one side of the catheter is connected with a push wheel in a contact manner, the push wheel is fixed on the needle cylinder through a push wheel shaft, a pinion is fixedly connected on the push wheel shaft, the pinion is meshed with a duplicate gear, the duplicate gear is meshed with a rack, the rack is fixedly connected with the push handle, and the catheter is wound on the push wheel; the front end of the needle cylinder is also connected with a blood storage bag through a blood transfusion tube, and a one-way valve is arranged in the blood transfusion tube.
Preferably, a conduit groove is formed in the push handle, a middle seal is arranged in the conduit groove, the middle seal can be opened or closed, air can be isolated in the puncturing process, and the puncturing process is ensured to be carried out aseptically.
Preferably, the needle cylinder is provided with an opening at the position of the duplex gear, and the duplex gear partially protrudes out of the needle cylinder at the opening, so that medical personnel can control other structures in the needle cylinder by shifting the duplex gear.
Preferably, two modes can be adopted for realizing the unidirectional rotation of the push wheel, one mode is that a unidirectional bearing is fixedly connected on the push wheel shaft, the unidirectional bearing is fixedly connected with the pinion, and the unidirectional bearing enables the push wheel shaft to only rotate anticlockwise but not rotate clockwise; the second method is that a helical tooth structure is adopted, a pushing wheel shaft and a pinion are divided into two parts, the connecting position of the two parts is designed into the helical tooth structure, a spring is wound on the pushing wheel shaft, the spring is in a normal state when not rotating, when anticlockwise rotation is carried out, helical teeth between the pushing wheel shaft and the pinion rotate relatively on a smooth helical tooth surface, and at the moment, the thrust of the spring can be overcome, and the helical teeth rotate; when the push pipe rotates clockwise, the push pipe cannot overcome the thrust of the spring and cannot rotate clockwise due to the obstruction of the table top of the level ruler on the gear, so that the one-way rotation of the push wheel is realized, and the push pipe can only be pushed out but cannot be retracted.
The invention also provides a using method of the venipuncture device, which comprises the following steps:
s1: manually rotating the convex part of the duplicate gear, wherein the duplicate gear drives the push wheel to rotate, and further the position of the catheter in the needle cylinder is adjusted;
s2: pumping physiological saline, and exhausting gas in the needle cylinder and the needle head;
s3: inserting the needle into the patient's blood vessel;
s4: the push handle is pulled lightly to drive the rack to move and drive the duplicate gear to rotate, and the pinion and the push wheel are fixed at the moment;
s5: when blood in the patient blood vessel enters the needle cylinder, the switch valve is opened, the blood flows into the blood storage bag through the blood transfusion tube under the action of negative pressure, and the switch valve is closed after the blood storage bag is full;
s6: when blood in the catheter enters the needle cylinder, the needle head is in a blood vessel, at the moment, the blood in the blood vessel of the patient enters the needle cylinder, the push handle is pushed to move forwards, the rack is driven to move forwards, the rack drives the double gear to rotate, the double gear drives the pinion to rotate, the pinion drives the push wheel to rotate, and the push wheel drives the catheter to move forwards along the catheter groove;
s7: the catheter penetrates through the middle seal to reach the needle tube, and the piston starts to push the blood in the needle tube back to the patient;
s8: when the piston reaches the inner end of the needle cylinder, the duplicate gear is separated from the rack, the convex part of the duplicate gear is manually rotated, and the catheter is pushed into the body of the patient until the pushing wheel is not contacted with the catheter any more;
s9: and pulling out the needle head to complete the venipuncture process.
Compared with the prior art, the invention has the beneficial effects that: (1) the push wheel is designed into a one-way structure, and the catheter is guided into the body of a patient by a mechanical method, so that the failure of inserting the catheter due to the error of medical staff when the catheter is inserted manually is avoided, and the speed of inserting the catheter is increased; (2) by arranging the structures such as the blood storage bag, the blood transfusion tube, the switch valve and the like, the blood sampling work can be simultaneously carried out on the patient for other examinations in the process of venipuncture, so that the pain of the patient is relieved; and simultaneously, the labor capacity of medical staff is reduced.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of the structure of the barrel with the catheter unextended.
FIG. 2 is a schematic view of the barrel with the catheter extended.
Fig. 3 is a sectional view in the direction of a-a in fig. 1.
Fig. 4 is a sectional view in the direction B-B in fig. 1 (using a one-way bearing).
Fig. 5 is a cross-sectional view (using a helical tooth structure) taken along the direction B-B in fig. 1.
Fig. 6 is a sectional view in the direction C-C in fig. 1.
Fig. 7 is a partial enlarged view at K in fig. 1.
Description of reference numerals:
1, pushing a handle; 2, supporting ribs; 3, a rack; 4 double gears; 5, a pushing wheel; 6, a catheter library; 7 a catheter; 8, a needle cylinder; 9 a conduit groove; 10 a piston; 11, sealing the middle; 12, a needle head; 13 duplicate gear shafts; 14 pushing the wheel shaft; 141 push the axle I; 142 pushing the wheel shaft II; 15 pinion gears; 151 pinion I; 152 pinion II; 16 springs; 17 a one-way bearing; 18 blood storage bag; 19 an on-off valve; 20 blood conveying vessels.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Example one
As shown in fig. 1-4 and fig. 6, this embodiment provides a venipuncture device, including cylinder 8 and push handle 1, push handle 1 is equipped with brace rod 2, brace rod 2 and cylinder 8 sliding connection, and the inner of push handle 1 is equipped with piston 10, and the one end of keeping away from of cylinder 8 and pushing handle 1 is equipped with syringe needle 12, its characterized in that: the needle cylinder 8 is connected with a catheter library 6, one side of the catheter 7 is provided with a push wheel 5, the push wheel 5 is fixed on the needle cylinder 8 through a push wheel shaft 14, a pinion 15 is fixedly connected with the push wheel shaft 14, the pinion 15 is meshed with a duplicate gear 4, the duplicate gear 4 is fixed on the needle cylinder 8 through a duplicate gear shaft 13, the duplicate gear 4 is meshed with a rack 3, the rack 3 is fixedly connected with a push handle 1, and the catheter 7 is wound on the push wheel 5.
In an alternative embodiment of this embodiment, a conduit groove 9 is formed in the push handle 1, and an intermediate seal 11 is formed in the conduit groove 9.
In an alternative embodiment of this embodiment, the needle cylinder 8 is provided with an opening at the dual gear 4, and the dual gear 4 partially protrudes out of the needle cylinder 8 at the opening.
In an alternative embodiment of this embodiment, a one-way bearing 17 is fixedly connected to the push wheel shaft 14, and the one-way bearing 17 is fixedly connected to the pinion 15.
The embodiment further provides a using method of the venipuncture device, which specifically comprises the following steps:
s1: manually rotating the convex part of the duplicate gear 4, the duplicate gear 4 drives the pushing wheel 5 to rotate, and then the position of the catheter 7 in the needle cylinder 8 is adjusted;
s2: pumping the physiological saline and exhausting the air in the syringe 8 and the needle head 12;
s3: inserting the needle 12 into the patient's blood vessel;
s4: the push handle 1 is pulled lightly, the push handle 1 drives the rack 3 to move, the duplicate gear 4 is driven to rotate, at the moment, the pinion 15 cannot rotate clockwise due to the action of the one-way bearing 17, and the push wheel 5 is also fixed;
s5: when blood in the blood vessel of the patient enters the syringe 8, the switch valve 19 is opened, the blood flows into the blood storage bag 18 through the blood transfusion tube 20, and the switch valve 19 is closed after the blood storage bag 18 is full;
s6: pushing the push handle 1 to move forwards to drive the rack 3 to move forwards, driving the duplicate gear 4 to rotate by the rack 3, driving the pinion 15 to rotate by the duplicate gear 4, driving the push wheel 5 to rotate by the pinion 15, and driving the guide pipe 7 to move forwards along the guide pipe groove 9 by the push wheel 5;
s7: the catheter 7 penetrates the middle seal 11 and reaches the needle 12, and the piston 10 starts to push the blood in the syringe 8 back to the patient;
s8: when the piston 10 reaches the inner end of the needle cylinder 8, the duplicate gear 4 is separated from the rack 3, the convex part of the duplicate gear 4 is manually rotated, and the catheter 7 is pushed into the patient until the pushing wheel 5 is not contacted with the catheter 7 any more;
s9: the needle 12 is withdrawn to complete the venipuncture procedure.
Example two
As shown in fig. 1-3 and fig. 5-6, this embodiment provides a venipuncture device, including cylinder 8 and push handle 1, push handle 1 and be equipped with brace rod 2, brace rod 2 and cylinder 8 sliding connection, the inner of pushing handle 1 is equipped with piston 10, the one end of keeping away from of cylinder 8 and pushing handle 1 is equipped with syringe needle 12, its characterized in that: the needle cylinder 8 is connected with a catheter library 6, one side of the catheter 7 is provided with a push wheel 5, the push wheel 5 is fixed on the needle cylinder 8 through a push wheel shaft 14, a pinion 15 is fixedly connected with the push wheel shaft 14, the pinion 15 is meshed with a duplicate gear 4, the duplicate gear 4 is fixed on the needle cylinder 8 through a duplicate gear shaft 13, the duplicate gear 4 is meshed with a rack 3, the rack 3 is fixedly connected with a push handle 1, and the catheter 7 is wound on the push wheel 5.
In an alternative embodiment of this embodiment, a conduit groove 9 is formed in the push handle 1, and an intermediate seal 11 is formed in the conduit groove 9.
In an alternative embodiment of this embodiment, the needle cylinder 8 is provided with an opening at the dual gear 4, and the dual gear 4 partially protrudes out of the needle cylinder 8 at the opening.
As an improvement of the embodiment, in an optional implementation manner of the embodiment, the push wheel shaft 14 is divided into two parts, namely a push wheel shaft I141 and a push wheel shaft II142, and the push wheel shaft I141 and the push wheel shaft II142 are rotationally connected through helical teeth; the pinion 15 is divided into two parts, namely a pinion I151 and a pinion II152, the pinion I151 and the pinion II152 are rotationally connected through helical teeth, a spring 16 is wound on the pushing wheel shaft II142, and the spring 16 is connected with the pinion II 152.
The embodiment further provides a using method of the venipuncture device, which specifically comprises the following steps:
s1: manually rotating the convex part of the duplicate gear 4, the duplicate gear 4 drives the pushing wheel 5 to rotate, and then the position of the catheter 7 in the needle cylinder 8 is adjusted;
s2: pumping the physiological saline and exhausting the air in the syringe 8 and the needle head 12;
s3: inserting the needle 12 into the patient's blood vessel;
s4: the push handle 1 is pulled lightly, the push handle 1 drives the rack 3 to move, the duplicate gear 4 is driven to rotate, at the moment, the gear I151 and the pinion II152 as well as the oblique teeth of the push wheel shaft I141 and the push wheel shaft II142 are clamped, the pinion 15 cannot rotate clockwise, and the push wheel 5 is also fixed;
s5: when blood in the blood vessel of the patient enters the syringe 8, the switch valve 19 is opened, the blood flows into the blood storage bag 18 through the blood transfusion tube 20, and the switch valve 19 is closed after the blood storage bag 18 is full;
s6: pushing the push handle 1 to move forwards to drive the rack 3 to move forwards, driving the duplicate gear 4 to rotate by the rack 3, driving the pinion 15 to rotate by the duplicate gear 4, driving the push wheel 5 to rotate by the pinion 15, and driving the guide pipe 7 to move forwards along the guide pipe groove 9 by the push wheel 5;
s7: the catheter 7 penetrates the middle seal 11 and reaches the needle 12, and the piston 10 starts to push the blood in the syringe 8 back to the patient;
s8: when the piston 10 reaches the inner end of the needle cylinder 8, the duplicate gear 4 is separated from the rack 3, the convex part of the duplicate gear 4 is manually rotated, and the catheter 7 is pushed into the patient until the pushing wheel 5 is not contacted with the catheter 7 any more;
s9: the needle 12 is withdrawn to complete the venipuncture procedure.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. The utility model provides a vein puncture device, includes cylinder (8) and pushes away handle (1), it is equipped with brace rod (2) on handle (1) to push away, brace rod (2) and cylinder (8) sliding connection, the inner that pushes away handle (1) is equipped with piston (10), the one end that keeps away from handle (1) of pushing away of cylinder (8) is equipped with syringe needle (12), its characterized in that: a catheter library (6) is arranged at the top of the needle cylinder (8), a catheter (7) is wound on the inner wall of the catheter library (6), a pushing wheel (5) is connected to one side of the catheter (7) in a contact manner, the pushing wheel (5) is fixed on the needle cylinder (8) through a pushing wheel shaft (14), a pinion (15) is fixedly connected to the pushing wheel shaft (14), a duplicate gear (4) is meshed with the pinion (15), a rack (3) is meshed with the duplicate gear (4), the rack (3) is fixedly connected with the push handle (1), and the catheter (7) is wound on the pushing wheel (5); the front end of the needle cylinder (8) is also connected with a blood storage bag (18) through a blood transfusion tube (20), and a switch valve (19) is arranged in the blood transfusion tube.
2. A venipuncture apparatus as claimed in claim 1, wherein: a conduit groove (9) is arranged in the push handle (1), and a middle seal (11) is arranged in the conduit groove (9).
3. A venipuncture apparatus as claimed in claim 1, wherein: an opening is formed in the needle cylinder (8) at the position of the duplicate gear (4), and the part of the duplicate gear (4) at the opening protrudes out of the needle cylinder (8).
4. A venipuncture apparatus as claimed in claim 1, wherein: the push wheel shaft (14) is fixedly connected with a one-way bearing (17), and the one-way bearing (17) is fixedly connected with the pinion (15).
5. A venipuncture apparatus as claimed in claim 1, wherein: the pushing wheel shaft (14) is divided into a pushing wheel shaft I (141) and a pushing wheel shaft II (142), and the pushing wheel shaft I (141) and the pushing wheel shaft II (142) are rotationally connected through helical teeth; the small gear (15) is divided into a small gear I (151) and a small gear II (152), the small gear I (151) and the small gear II (152) are rotationally connected through helical teeth, a spring (16) is further wound on the pushing wheel shaft II (142), and the spring (16) is connected with the small gear II (152).
6. A method of using a venipuncture device, comprising the steps of:
s1: the convex part of the duplicate gear (4) is manually rotated, the duplicate gear (4) drives the push wheel (5) to rotate, and then the position of the catheter (7) in the needle cylinder (8) is adjusted;
s2: pumping the normal saline, exhausting the air in the syringe (8) and the needle head (12) and pushing the push handle (1) to discharge the normal saline;
s3: inserting a needle (12) into a patient's blood vessel;
s4: the push handle (1) is pulled lightly, the push handle (1) drives the rack (3) to move and drives the duplicate gear (4) to rotate, and the pinion (15) and the push wheel (5) are fixed at the moment;
s5: blood in a patient blood vessel enters the syringe (8), the switch valve (19) is opened at the moment, the blood flows into the blood storage bag (18) through the blood transfusion tube (20), and the switch valve (19) is closed after the blood storage bag (18) is filled;
s6: the push handle (1) is pushed to move forwards to drive the rack (3) to move forwards, the rack (3) drives the duplicate gear (4) to rotate, the duplicate gear (4) drives the pinion (15) to rotate, the pinion (15) drives the push wheel (5) to rotate, and the push wheel (5) drives the guide pipe (7) to move forwards along the guide pipe groove (9);
s7: the catheter (7) penetrates through the middle seal (11) and reaches the inside of the needle (12), and the piston (10) starts to push the blood in the syringe (8) back to the body of the patient;
s8: when the piston (10) reaches the inner end of the needle cylinder (8), the double gear (4) is separated from the rack (3), the protruding part of the double gear (4) is manually rotated, and the catheter (7) is pushed into the body of the patient until the pushing wheel (5) is not contacted with the catheter (7);
s9: the needle head (12) is pulled out to complete the venipuncture process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110872319.3A CN113577447A (en) | 2021-07-30 | 2021-07-30 | Venipuncture device and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110872319.3A CN113577447A (en) | 2021-07-30 | 2021-07-30 | Venipuncture device and using method thereof |
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| CN113577447A true CN113577447A (en) | 2021-11-02 |
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| CN202110872319.3A Pending CN113577447A (en) | 2021-07-30 | 2021-07-30 | Venipuncture device and using method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202184773U (en) * | 2011-06-03 | 2012-04-11 | 张超 | Novel puncture needle |
| CN107206212A (en) * | 2015-01-21 | 2017-09-26 | 美敦力瓦斯科尔勒公司 | Guiding catheter with steering mechanism |
| CN107536615A (en) * | 2016-06-24 | 2018-01-05 | 湖北心源科技有限公司 | A kind of hemospast |
| CN207477755U (en) * | 2017-05-02 | 2018-06-12 | 郑州大学第一附属医院 | Central vein puncture needle |
| CN212089691U (en) * | 2020-03-18 | 2020-12-08 | 黄宇 | Cardiovascular intervention device |
| JP2021101891A (en) * | 2019-12-25 | 2021-07-15 | 朝日インテック株式会社 | Wire delivery device and chemical dosing device |
-
2021
- 2021-07-30 CN CN202110872319.3A patent/CN113577447A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202184773U (en) * | 2011-06-03 | 2012-04-11 | 张超 | Novel puncture needle |
| CN107206212A (en) * | 2015-01-21 | 2017-09-26 | 美敦力瓦斯科尔勒公司 | Guiding catheter with steering mechanism |
| CN107536615A (en) * | 2016-06-24 | 2018-01-05 | 湖北心源科技有限公司 | A kind of hemospast |
| CN207477755U (en) * | 2017-05-02 | 2018-06-12 | 郑州大学第一附属医院 | Central vein puncture needle |
| JP2021101891A (en) * | 2019-12-25 | 2021-07-15 | 朝日インテック株式会社 | Wire delivery device and chemical dosing device |
| CN212089691U (en) * | 2020-03-18 | 2020-12-08 | 黄宇 | Cardiovascular intervention device |
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