CN115137452B - Human body mechanics integrated deep vein puncture kit and method of use thereof - Google Patents
Human body mechanics integrated deep vein puncture kit and method of use thereof Download PDFInfo
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- CN115137452B CN115137452B CN202210351070.6A CN202210351070A CN115137452B CN 115137452 B CN115137452 B CN 115137452B CN 202210351070 A CN202210351070 A CN 202210351070A CN 115137452 B CN115137452 B CN 115137452B
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- 210000003462 vein Anatomy 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title description 14
- 239000007788 liquid Substances 0.000 claims abstract description 102
- 238000007789 sealing Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 210000004369 blood Anatomy 0.000 abstract description 28
- 239000008280 blood Substances 0.000 abstract description 28
- 210000003811 finger Anatomy 0.000 abstract description 26
- 210000003813 thumb Anatomy 0.000 abstract description 6
- 238000007920 subcutaneous administration Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 10
- 210000004204 blood vessel Anatomy 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 239000000523 sample Substances 0.000 description 4
- 210000004872 soft tissue Anatomy 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000001990 intravenous administration Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000004247 hand Anatomy 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010013954 Dysphoria Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003191 femoral vein Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 210000004731 jugular vein Anatomy 0.000 description 1
- 238000002690 local anesthesia Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 235000016236 parenteral nutrition Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 201000003144 pneumothorax Diseases 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 210000001321 subclavian vein Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3498—Valves therefor, e.g. flapper valves, slide valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3405—Needle locating or guiding means using mechanical guide means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3413—Needle locating or guiding means guided by ultrasound
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Gastroenterology & Hepatology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a human body mechanical integrated deep vein puncture kit, which relates to the field of deep vein puncture of medical equipment, and comprises a puncture needle head, a needle cylinder, an upper bracket, a lower bracket, a guide wire sheath tube and a liquid collecting tube; the needle cylinder comprises a cylinder body, a piston part and an annular piston handle, the puncture needle head comprises a puncture part, a connecting hole and a side hole, a first one-way valve is arranged in the cylinder body, and a second one-way valve is arranged in the liquid collecting pipe. When the device is used, one end of a guide wire in the guide wire sheath tube is inserted into the side hole, an index finger buckles the annular piston handle to form negative pressure to puncture the subcutaneous part of a patient to the vein, the guide wire is placed into the lower bracket by the thumb after blood returns smoothly, and the rest fingers support the lower bracket.
Description
Technical Field
The invention relates to the field of deep venipuncture of medical equipment, in particular to a human body mechanical integrated deep venipuncture kit and a use method thereof.
Background
With the development of medical technology, deep intravenous puncture catheterization is increasingly widely applied to the fields of emergency treatment, severe cases, anesthesia, various branch internal surgery and the like. The operation has important effects of rapid fluid infusion, parenteral nutrition support, central venous pressure detection, disease assessment and the like, and is difficult to replace. Venipuncture catheterization is one of the means commonly used clinically for intravenous infusion. The great veins such as subclavian vein, internal jugular vein, femoral vein and the like are usually selected for puncture and catheterization.
The deep vein puncture mainly comprises the steps of firstly setting a patient body position, selecting a proper puncture part and a needle insertion point, then establishing a disinfection area, carrying out local disinfection according to a sterile operation procedure, paving an operation towel, carrying out local anesthesia, and then carrying out negative pressure needle insertion deep vein puncture. When deep vein puncture is carried out, a disposable puncture needle is used for puncturing veins, blood return is observed, after smooth blood return is confirmed, the puncture needle is fixed, a guide wire is held, a guide wire is placed into the guide wire through a guide wire placing needle cylinder, the puncture needle is withdrawn, then a skin expanding needle is placed along the guide wire, the skin expanding needle is withdrawn after a puncture channel is widened, then a deep vein catheter is placed along the guide wire, finally the guide wire is withdrawn, and the deep vein tube is fixed.
The deep vein puncture kit used clinically at present consists of a syringe, a special puncture needle, a guide wire, a deep vein catheter, a suture line, a skin suture needle, a surgical knife and the like. Chinese patent publication No. CN203647484U discloses a disposable central venous guidewire retrograde guiding tracheal cannula puncture bag. Comprises a tray, a sterilizing brush, a syringe needle, a Y-shaped puncture needle and a central venous catheter guide wire, wherein the puncture package is basically consistent with the current clinical use, and has complete articles, low cost and wide use.
However, in the deep vein puncture catheterization, the technical requirements on medical staff are high, even operators with abundant experience cannot avoid puncture failure, and the main reasons are that the two aspects are that the individual difference of patients has great influence on the positioning of puncture points, and the factors can be effectively improved through ultrasonic guidance and other technologies at present.
Secondly, the guide wire is difficult to put in the operation process, and the key steps are mainly two steps of confirming that the needle point is positioned in a vein and putting in the guide wire. The common defects of the puncture needle set commonly used at present are that the puncture needle and the guide wire are far apart, the guide wire is positioned in an independent sheath tube structure, the puncture needle is required to be fixed by one hand of the operator, the needle point is kept in a vein, the guide wire is placed into the vein along the puncture needle by the other hand of the guide wire sheath tube, in the process, the needle point in the deep vein is easily separated from the vein due to the influence of dysphoria, respiratory motion, poor filling degree of the vein blood vessel, small diameter of the blood vessel and the like of the patient, and the guide wire is failed to be placed even caused by serious complications such as bleeding, pneumothorax and the like.
In addition, the syringes in the deep intravenous catheter kits currently in common use are not compatible with the common syringe, the syringe capacity is typically only 5-10ml, and after a guidewire placement failure, the syringe is typically emptied of blood, at which time the needle must be withdrawn, repositioned and punctured. In this case, the deep vein and the surrounding soft tissues are susceptible to additional damage, and the vascular conditions are affected, which results in increased difficulty in operation and, to some extent, greater pressure on the operator.
Disclosure of Invention
In order to solve the defects in the prior art, the inventor considers improving the existing puncture kit, shortening the time and space from the back suction of blood to the placement of a guide wire as much as possible, and completing the most critical steps with the smallest actions so as to achieve the aim of improving the placement success rate.
The invention discloses a human body mechanical integrated deep vein puncture kit, which comprises a puncture needle head, a needle cylinder and a guide wire which are sequentially arranged, wherein the needle cylinder comprises a cylinder body and a piston part, the inside of the cylinder body is hollow, one end of the cylinder body is in plug-in fit with the piston part, and the other end of the cylinder body is provided with a connecting end;
The puncture needle head comprises a puncture part, a connecting hole and a side hole, wherein the connecting hole is in plug-in fit with the connecting end of the needle cylinder, and a sealing block is arranged in the side hole;
The human body mechanical integrated deep vein puncture kit further comprises an upper bracket and a liquid collecting tube, wherein the upper bracket is connected with the upper surface of the needle cylinder, and the thickness of one side of the upper bracket, which is close to the puncture needle head, is smaller than the thickness of the middle part of the upper bracket;
The liquid collecting pipe is in a semi-annular hollow pipe shape, one end of the liquid collecting pipe is communicated with one end of the barrel body of the needle cylinder, which is close to the puncture needle head, and the other end of the liquid collecting pipe is provided with an air pressure balance hole;
The connecting end of the cylinder body is provided with a first one-way valve, and liquid in the puncture needle head can enter the cylinder body of the needle cylinder through the first one-way valve;
The liquid collecting pipe is provided with a second one-way valve at the position where the liquid collecting pipe is communicated with the cylinder body of the needle cylinder, and liquid in the cylinder body can enter the liquid collecting pipe through the second one-way valve.
Through adopting above-mentioned technical scheme, insert the one end of seal wire through the side opening earlier and wear inside the time syringe needle, the seal wire middle part is inconsistent with last bracket, a finger control piston portion forms negative pressure in the inside syringe of needle and pierces the vein with the puncture syringe needle in getting into patient's health simultaneously during the use, venous blood gets into the barrel of syringe through first check valve, observe back smooth and easy back, put into patient's blood vessel along the puncture needle with the seal wire that will contradict with last bracket with a finger, this operation can be accomplished to the one hand, avoid the complicated operation of both hands to mate the mistake easily, the other hand also can be ready to handle other emergent conditions that probably take place, perhaps carry out important operations such as regulation ultrasonic probe position.
The needle in the deep vein is easy to deviate from veins in operation, so that the guide wire is failed to be placed, venous blood in the needle cylinder cannot enter a puncture needle head to return to the patient through a first one-way valve and flows into a liquid collecting tube through a second one-way valve at the moment, the vein can be punctured again under negative pressure when the needle cylinder has enough space allowance, the space in the needle cylinder is not enough to support an operator to puncture the vein again under negative pressure and observe blood return when the guide wire is placed into failure, the puncture needle head can only be pulled out for repositioning and puncturing, the deep vein and surrounding soft tissues of a puncture part of the patient are easy to be additionally damaged, the condition of the blood vessel is prevented from being influenced too much, and the pressure of the operator is facilitated to be reduced.
In the process of discharging venous blood in the needle cylinder, the air pressure balance hole of the liquid collecting pipe keeps the air pressure in the liquid collecting pipe to be the same as the external air pressure at all times, so that the condition that venous blood in the needle cylinder cannot flow into the liquid collecting pipe through the second one-way valve is avoided. In the venipuncture process, the sealing plug, the second one-way valve and the piston part are convenient for ensuring the negative pressure needle insertion.
Preferably, one end of the piston part, which is far away from the puncture needle head, is provided with a piston handle, and the shape of the piston handle is annular.
Through adopting above-mentioned technical scheme, under the general circumstances, the operation is accomplished smoothly, and the operator need not to hold the cylinder constantly, but if the operation process is unsmooth, or when the vein vessel of less pipe diameter is punctured under the ultrasonic guidance, the operator need keep the negative pressure state in the syringe constantly before the needle point pierces dark vein. At the moment, the finger flexibility of the operator holding the needle can be greatly influenced, the operation fineness is reduced, the puncture failure is easy to occur, the problem can be effectively avoided through the piston handle with the annular shape, and the human body mechanical integrated deep vein puncture kit is more suitable for single-hand operation.
The integrated deep vein puncture kit comprises a puncture needle, a puncture needle head, a puncture needle, a guide wire sheath tube, a liquid collecting tube, a liquid guiding tube and a sealing tube.
By adopting the technical scheme, the guide wire pre-storing position is provided, the guide wire is convenient to use in a complete set, and the guide wire is prevented from being bent.
Preferably, the human body mechanical integrated deep vein puncture kit further comprises a lower bracket, wherein the lower bracket is connected with the lower surface of the needle cylinder and is in a gun stock shape;
a piston moving space is formed between the upper bracket and the lower bracket, the piston part moves along the length direction of the needle cylinder in the piston moving space, and a bearing space is formed between the lower bracket and the liquid collecting pipe.
By adopting the technical scheme, besides fingers of the control guide wire and the control piston part, other fingers are buckled at the lower bracket, so that the stability of the human body mechanical integrated deep vein puncture kit is conveniently improved. When the device is specifically used, the index finger can control the piston part to move along the length direction of the needle cylinder in the piston moving space, the thumb can control the guide wire to be put in, and other fingers can support the lower bracket in the bearing space.
Preferably, the distance between the two ends of the lower bracket and the vertical direction of the upper bracket is smaller than the distance between the middle of the lower bracket and the vertical direction of the middle of the upper bracket, and the shape of the piston moving space is circular or elliptical.
By adopting the technical scheme, the interference of the upper bracket and the lower bracket to the index finger in the process of controlling the piston part to move along the length direction of the needle cylinder in the piston moving space by the index finger is avoided, and the operation accuracy is affected.
Preferably, the end of the liquid collecting tube away from the puncture needle is connected with the upper bracket and/or the lower bracket.
By adopting the technical scheme, all the front and back parts of the human body mechanical integrated deep vein puncture kit are fixedly connected, the structure is very stable, and the operation is prevented from being interfered.
Preferably, at least one liquid drain valve is arranged on the outer peripheral side of the liquid collecting pipe, and the liquid drain valve is positioned on the lower surface of the outer peripheral side of the liquid collecting pipe.
By adopting the technical scheme, the liquid in the liquid collecting pipe is conveniently emptied, and when the liquid in the liquid collecting pipe brings inconvenience to operation in the use process, the liquid can be discharged through the liquid discharge valve, and if residual liquid exists in the liquid collecting pipe after the use is finished, the classification treatment is convenient.
Preferably, the angle between the tangent line of the semi-annular part of the liquid collecting tube near one end of the puncture needle head and the syringe is smaller than 90 degrees.
By adopting the technical scheme, the angle between the puncture needle head and the puncture part is not vertical during puncture, and the puncture needle head is possibly inclined, so that the influence of the shape of the liquid collecting pipe on the angle of needle insertion is avoided.
Preferably, the cylinder body and the liquid collecting pipe of the syringe are transparent or semitransparent.
By adopting the technical scheme, the information of whether the puncture needle head punctures a vein, whether the blood returning condition is good or not and the like can be clearly judged through the blood returning condition in the transparent or semitransparent needle cylinder, so that the next operation is determined, and whether liquid is discharged from the needle cylinder into the liquid collecting pipe or not and whether the liquid in the liquid collecting pipe is discharged through the liquid discharging hole or not can be judged through the transparent or semitransparent liquid collecting pipe.
The second purpose of the invention is to provide a using method of the human body mechanical integrated deep vein puncture kit, which comprises the following steps:
S1, inserting one end of a guide wire into the interior of a puncture needle through a side hole, wherein the middle part of the guide wire is abutted against an upper bracket;
s2, controlling the piston part by one finger to form negative pressure in the needle cylinder, and simultaneously, puncturing the puncture needle head into the body of the patient to puncture veins, wherein venous blood enters the cylinder body of the needle cylinder through the first one-way valve;
s3, after observing smooth blood return, placing a guide wire which is in contact with the upper bracket into a blood vessel of a patient along the puncture needle by using the other finger;
s4, if the needle tip of the puncture needle is separated from the vein, the guide wire is failed to be put in, the piston part is pushed to enable venous blood in the syringe to flow into the liquid collecting tube through the second one-way valve, and the operation of the steps S2-S3 is retried after small adjustment under the condition that the puncture needle is not pulled out.
In summary, compared with the prior art, the invention has the following beneficial effects:
(1) The needle comprises a puncture needle head, a needle cylinder, a bracket and a guide wire, wherein the needle cylinder comprises a cylinder body and a piston part, one end of the piston part, which is far away from the puncture needle head, is provided with an annular piston handle, the bracket comprises an upper bracket and a lower bracket, the puncture needle head comprises a puncture part, a connecting hole and a side hole, one end of the guide wire is inserted into the puncture needle head through the side hole, the middle part of the guide wire is in contact with the upper bracket, the annular piston handle is buckled by an index finger, the piston part is controlled to form negative pressure in the needle cylinder, the puncture needle head is simultaneously penetrated into a patient body to puncture veins, venous blood enters the cylinder body of the needle cylinder through a first one-way valve, after smooth blood return is observed, the guide wire which is in contact with the upper bracket is arranged in the blood vessel of the patient along the puncture needle by a thumb, and other fingers are positioned in a bearing space and buckled at the lower bracket, so that the stability of the human body integrated deep vein puncture kit is increased, the operation can be completed by one hand, complex operation can be avoided, and the other hand can also be ready for handling emergency situations which possibly happen, or the position of an ultrasonic probe can be regulated;
(2) Once the guide wire is failed to be put into, the index finger pushes the piston part, venous blood in the needle cylinder cannot enter the puncture needle head to return to the patient through the first one-way valve and flow into the liquid collecting tube through the second one-way valve, the vein can be punctured by negative pressure again when enough space allowance exists in the needle cylinder, the puncture needle head is prevented from being pulled out to be repositioned and punctured, the deep vein blood vessel and surrounding soft tissues of the puncture part of the patient are easily damaged additionally, and the operation can be completed by one hand;
(3) The modeling of the bracket is in accordance with the mechanical characteristics of the hand at the rest position, and the annular piston handle is combined to be in accordance with the holding structure of human mechanics, so that the influence of lasting operation on fingers is slowed down, the comfort level of the operator is improved, the finger flexibility of the operator is maintained, and the success rate of the guide wire placement is improved;
(4) Through setting up inside cavity one end open-ended seal wire sheath pipe, its blind end is located the collector tube inside, and its open end is located the collector tube outside, provides a seal wire and stores the position in advance, and convenient complete set uses prevents that the seal wire from buckling.
Drawings
FIG. 1 is a schematic structural view of a human body mechanical integrated deep vein puncture kit according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of another direction of the integrated deep vein puncture set according to embodiment 1 of the present invention;
FIG. 3 is a schematic cross-sectional view of the integrated human body mechanical deep vein puncture kit of FIG. 2;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is an enlarged view of portion B of FIG. 3;
FIG. 6 is an enlarged view of portion C of FIG. 3;
FIG. 7 is an enlarged view of the portion D of FIG. 3;
Reference numeral 1, a puncture needle; 11, a puncture part, 12, a connecting hole, 13, a side hole, 2, a syringe, 21, a cylinder, 22, a piston part, 221, a piston handle, 23, a connecting end, 231, a first one-way valve, 3, a guide wire, 31, a guide wire sheath tube, 41, an upper bracket, 42, a lower bracket, 43, a piston moving space, 5, a liquid collecting tube, 51, an air pressure balance hole, 52, a second one-way valve, 53, a bearing space, 54 and a liquid discharging valve.
Detailed Description
The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. In the following description, for the purposes of clarity of presentation of the structure and manner of operation of the present invention, the description will be made with the aid of directional terms, but such terms as "forward," "rearward," "left," "right," "outward," "inner," "outward," "inward," "upper," "lower," etc. are to be construed as convenience, and are not to be limiting. "distal" and "proximal" in the context of "distal segment," "distal," "proximal segment," and "proximal" are relative to the location of the operator of the needle assembly, i.e., proximal to the operator and distal from the operator.
It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. The endpoints and any values of the ranges disclosed herein are not limited to the precise range or value, and are understood to encompass values approaching those ranges or values. For numerical ranges, one or more new numerical ranges may be obtained in combination with each other between the endpoints of each range, between the endpoint of each range and the individual point value, and between the individual point value, and should be considered as specifically disclosed herein, the invention is described in detail below in connection with the specific embodiments:
Example 1
As shown in fig. 1 and 2, the human body mechanical integrated deep vein puncture kit comprises a puncture needle head 1, a needle cylinder 2, a bracket, a liquid collecting tube 5, a guide wire 3 and a guide wire sheath tube 31, wherein the bracket comprises an upper bracket 41 and a lower bracket 42.
The needle cylinder 2 comprises a cylinder body 21 and a piston part 22, one end of the piston part 22, far away from the puncture needle 1, is provided with a piston handle 221, the piston handle 221 can be in various shapes such as L-shaped, T-shaped and annular, the embodiment is preferably annular, the inside of the cylinder body 21 is hollow, one end of the cylinder body 21 is in plug-in fit with the piston part 22, the other end of the cylinder body 21 is provided with a connecting end 23, the puncture needle 1 comprises a puncture part 11, a connecting hole 12 and a side hole 13, the connecting hole 12 is in plug-in fit with the connecting end 23 of the needle cylinder 2, and a sealing plug is arranged in the side hole 13.
The liquid collecting tube 5 is semi-annular hollow tubular, one end of the liquid collecting tube 5 is communicated with one end of the barrel 21 of the needle cylinder 2, which is close to the puncture needle head 1, an included angle between a tangent line of the semi-annular part of the liquid collecting tube 5, which is close to one end of the puncture needle head 1, and the needle cylinder 2 is smaller than 90 degrees, in the embodiment, the included angle between the tangent line of the semi-annular part of the liquid collecting tube 5, which is close to one end of the puncture needle head 1, and the needle cylinder 2 is preferably 45 degrees, so that the needle entering angle is prevented from being influenced by the shape of the liquid collecting tube 5, and the air pressure balance hole 51 is formed in one end, which is far away from the puncture needle head 1, of the liquid collecting tube 5. The liquid collecting pipe 5 is provided with a plurality of liquid discharging valves 54 on the outer periphery, the liquid discharging valves 54 can be in the form of a plug of silica gel and a liquid discharging hole or other valve mechanisms capable of controlling whether liquid flows out of the liquid collecting pipe 5, in this embodiment, the liquid discharging valves 54 are provided with 1 plug of silica gel and a liquid discharging hole for simple and convenient operation, and the liquid discharging valves 54 are located at the lowest level of the lower surface of the outer periphery of the liquid collecting pipe 5.
As shown in fig. 3 and 4, the connecting end 23 of the cylinder 21 is provided with a first one-way valve 231, a second one-way valve 52 is arranged at the position where the liquid collecting tube 5 is communicated with the cylinder 21 of the syringe 2, liquid in the puncture needle 1 can enter the cylinder 21 of the syringe 2 through the first one-way valve 231, and liquid in the cylinder 21 can enter the liquid collecting tube 5 through the second one-way valve 52, so that the liquid in the liquid collecting tube 5 can be conveniently emptied.
If venous blood in the syringe 2 needs to be discharged, the air pressure balance hole 51 of the liquid collecting tube 5 can keep the air pressure in the liquid collecting tube 5 to be the same as the external air pressure, so that venous blood in the syringe 2 can not flow into the liquid collecting tube 5 through the second one-way valve 52. The sealing plug, second one-way valve 52, and plunger portion 22 facilitate ensuring negative pressure needle insertion during venipuncture.
The barrel 21 and the liquid collecting tube 5 of the syringe 2 are transparent or semitransparent, in this embodiment, the barrel 21 and the liquid collecting tube 5 of the syringe 2 are made of transparent materials, so that information such as whether the puncture needle 1 punctures a vein or returns blood is conveniently identified and judged, further the next operation is determined, and whether liquid is discharged from the syringe 2 into the liquid collecting tube 5 or not and whether the liquid in the liquid collecting tube 5 is emptied through a liquid discharging hole can be judged through the transparent or semitransparent liquid collecting tube 5.
The upper bracket 41 is connected with the upper surface of the needle cylinder 2, the lower bracket 42 is connected with the lower surface of the needle cylinder 2, the thickness of one side of the upper bracket 41, which is close to the puncture needle head 1, is smaller than the thickness of the middle part of the upper bracket 41, the lower bracket 42 is in a gun stock shape, the distance between the two ends of the lower bracket 42 and the middle part of the upper bracket 41 in the vertical direction is smaller than the distance between the middle part of the lower bracket 42 and the middle part of the upper bracket 41 in the vertical direction, a piston moving space 43 is formed between the upper bracket 41 and the lower bracket 42, the shape of the piston moving space 43 is circular or elliptic or the shape of the other two ends of the piston moving space 43 is smaller than the width of the middle part, the embodiment is preferably elliptic, the long axis of the piston moving space 43 is parallel to the opening direction of the needle cylinder 2, the piston part 22 moves in the length direction of the needle cylinder 2 in the piston moving space 43, interference of the upper bracket 41 and the lower bracket 42 in the process that the index finger controls the piston part 22 moves in the length direction of the needle cylinder 2 is avoided, the accuracy of operation is affected, the space 53 is formed between the lower bracket 42 and the liquid collecting tube 5, one end far away from the puncture needle head 1 is connected with the upper bracket 41 and/the lower bracket 42, the other end of the liquid collecting tube 5 is connected with the needle head 42, the whole body is completely stable, and the venous puncture needle is completely stable, and the venous operation is stable and can be operated.
As shown in fig. 3,4 and 5, the hollow end of the guide wire sheath tube 31 is opened to provide a pre-stored position of the guide wire 3, the guide wire 3 is convenient to use in a sleeved mode, the closed end of the guide wire 3 is located inside the liquid collecting tube 5, the open end of the guide wire 3 is located outside the liquid collecting tube 5, as shown in fig. 4, the part of the guide wire sheath tube 31 located inside the liquid collecting tube 5 in the embodiment is abutted against the inner peripheral side of the liquid collecting tube 5, as shown in fig. 6, the part of the guide wire sheath tube 31 located outside the liquid collecting tube 5 is abutted against the upper bracket 41, the open end of the guide wire sheath tube 31 is abutted against the middle of the upper bracket 41, the middle of the guide wire 3 is abutted against the upper surface of the upper bracket 41, one end of the guide wire 3 can penetrate through the sealing block to enter the puncture needle 1 from the side hole 13, and one end of the guide wire 3 away from the puncture needle 1 is in plug fit with the guide wire sheath tube 31.
When the device is used, one end of the guide wire 3 is inserted into the puncture needle through the side hole 13, the airtight plug in the side hole 13 is used for sealing, the middle part of the guide wire 3 is abutted against the upper bracket 41, the index finger is used for buckling the annular piston handle 221, the piston part 22 is controlled to form negative pressure in the needle cylinder 2, the puncture needle head 1 is inserted into the body of a patient to puncture the vein, venous blood enters the cylinder 21 of the needle cylinder 2 through the first one-way valve 231, after smooth blood return is observed, the guide wire 3 abutted against the upper bracket 41 is placed into the blood vessel of the patient along the puncture needle through the thumb, and the other fingers are positioned in the bearing space 53 and buckled at the lower bracket 42, so that the stability of the human body mechanical integrated deep vein puncture kit is improved, the operation can be finished by one hand, the complex operation of the two hands is avoided, the other hand can be prepared for treating other possible emergency situations or the important operations such as adjusting the position of an ultrasonic probe.
Once the guide wire 3 fails to be put in, the index finger pushes the piston part 22, venous blood in the needle cylinder 2 cannot enter the puncture needle head 1 to return to the patient through the first one-way valve 231, but flows into the liquid collecting tube 5 through the second one-way valve 52, and when enough space allowance exists in the needle cylinder 2, the venous puncture can be performed again under negative pressure, the puncture needle head 1 is prevented from being pulled out to be repositioned and punctured, the deep venous blood vessel at the 11-position of the puncture part of the patient and soft tissues around the deep venous blood vessel are prevented from being damaged additionally, the operation difficulty is prevented from being increased due to the overlarge influence of the blood vessel condition, the pressure of an operator is reduced, and the operation can be completed by one hand. The modeling of the bracket is in accordance with the mechanical characteristics of the hand at the rest position, and is combined with the annular piston handle 221, so that the structure of holding the guide wire in accordance with the human body mechanics is adopted, the influence of the lasting operation on the fingers is slowed down, the comfort level of the operator is improved, the finger flexibility of the operator is maintained, and the success rate of placing the guide wire 3 is improved.
Example 2
A method of using a human mechanical integrated deep vein puncture kit according to embodiment 1, comprising the steps of:
S1, taking out a guide wire 3 from a guide wire sheath tube 31 in which the guide wire 3 is stored in advance, inserting one end of the guide wire 3 into a penetrating needle through a side hole 13, sealing by a sealing plug in the side hole 13, and enabling the middle part of the guide wire 3 to be in contact with an upper bracket 41;
S2, after the puncture needle head 1 enters the skin, an index finger buckles the annular piston handle 221 and pulls the annular piston handle slightly backwards, the piston part 22 is controlled to move in the piston moving space 43 along the length direction of the syringe 2, and moderate negative pressure in the syringe is kept;
S3, after the needle tip penetrates into a deep vein, dark red venous blood is visible, after smooth blood return is observed, the guide wire 3 can be rubbed by the thumb by means of the upper bracket 41 to be sent into the vein of a patient, and the movement distance is about 10cm, as shown in fig. 3 and 7, if the guide wire 3 is thin enough, the head end of the guide wire 3 can be placed at a position which is 2-3cm away from the needle tip of the puncture needle head 1 in advance on the premise that the blood flow in the needle tip is not blocked, the thumb can be rubbed by less, and the placement of the guide wire 3 can be completed, so that the most critical steps can be completed through the minimum action;
S4, if the needle tip of the puncture needle head 1 is separated from a vein, the guide wire 3 fails to be put in, the index finger is used for pushing the piston part 22 to enable venous blood in the syringe 2 to flow into the liquid collecting tube 5 through the second one-way valve 52, and the operation of the steps S2-S3 is retried after small adjustment under the condition that the puncture needle head 1 is not pulled out.
The invention improves the existing puncture suite, shortens the time and space for drawing back blood to the placement of the guide wire 3 as much as possible, can realize single-hand operation through the human body mechanical integrated deep vein puncture suite, finishes the most critical steps with the minimum action, prepares emergency operation or carries out important operations such as adjusting the position of the ultrasonic probe by the other hand, and the like, so as to achieve the aim of improving the placement success rate.
The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.
Claims (9)
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| CN218636053U (en) * | 2022-04-02 | 2023-03-17 | 上海市静安区闸北中心医院 | Deep vein puncture kit |
| CN218651949U (en) * | 2022-04-02 | 2023-03-21 | 上海市静安区闸北中心医院(上海长征医院闸北分院) | Deep vein puncture kit based on human mechanics |
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| CN201200455Y (en) * | 2008-05-16 | 2009-03-04 | 吕晓明 | Y type arteriopuncture trocars with guide wire for preventing blood spraying externally |
| JP2011067557A (en) * | 2009-09-28 | 2011-04-07 | Terumo Corp | Introducer sheath and introducer assembly |
| US11413433B2 (en) * | 2016-04-17 | 2022-08-16 | Acantha Medical, LLC | Device and method for single-handed access and insertion of an article |
| CN108577946A (en) * | 2018-05-18 | 2018-09-28 | 温州医科大学附属第医院 | It is a kind of through vena jugularis externa row deep venouspuncture |
| CN211409269U (en) * | 2019-07-03 | 2020-09-04 | 汕头市中心医院 | Improved deep vein catheterization puncture injector |
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| CN218636053U (en) * | 2022-04-02 | 2023-03-17 | 上海市静安区闸北中心医院 | Deep vein puncture kit |
| CN218651949U (en) * | 2022-04-02 | 2023-03-21 | 上海市静安区闸北中心医院(上海长征医院闸北分院) | Deep vein puncture kit based on human mechanics |
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