CN201624741U - Internal-fistula needle capable of protecting vascular walls - Google Patents
Internal-fistula needle capable of protecting vascular walls Download PDFInfo
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- CN201624741U CN201624741U CN2010201493342U CN201020149334U CN201624741U CN 201624741 U CN201624741 U CN 201624741U CN 2010201493342 U CN2010201493342 U CN 2010201493342U CN 201020149334 U CN201020149334 U CN 201020149334U CN 201624741 U CN201624741 U CN 201624741U
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- needle
- internal fistula
- needle tubing
- internal
- puncture
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Abstract
The utility model relates to an internal-fistula needle capable of protecting vascular walls, which comprises a body and a needle tube. One end of the needle tube (6) is fixed onto the body and is a mounting end (61) of the needle tube, and the other end of the needle tube is a syringe (62). The needle is characterized in that a plane inclined to the axis of the needle tube is formed at an annular end face of a needle tube wall of the syringe (62), an arc is arranged at the outer edge of the annular end face away from the mounting end, and a smooth blunt pinpoint (63) is formed on a needle tube wall corresponding to the arc outer edge. By arranging the smooth blunt pinpoint, when used in buttonhole puncture method, the internal-fistula needle is inserted via a buttonhole formed by common internal-fistula needle puncture without causing any injury on the inner wall of an internal fistula vessel, thereby effectively preventing hamangioma, reducing puncture pain for a patient, and being capable of evidently reducing bleeding of puncture points and incidences of forming and infection of an infiltration blocks, and evidently prolonging the service life of an internal fistula of a dialysis patient.
Description
Affiliated technical field
This utility model belongs to the medical apparatus and instruments frontier, specifically is a kind of buttonhole formula piercing method that is applicable to, can reduce damage, the internal fistula pin in prolongation internal fistula life-span to blood vessel wall as far as possible.
Background technology
The patient that need do hemodialysis is not suitable for doing the fistulation operation except only a few, and most patient all needs to utilize the internal fistula pin sophisticated internal fistula that punctures, and sets up interim blood channel.But prolonged and repeated puncture internal fistula leads to complications easily, and hemangioma is exactly one of common complication wherein, and hemangioma may cause thrombosis, causes the narrow obstruction of internal fistula, can cause blood fistula burst hemorrhage and cause death when hemangioma is excessive.According to clinical observation, form angiomatous all multifactor in, the puncture factor is a most important reason.
The needle tubing structure of existing common internal fistula pin is shown in Fig. 1～3, the one head is for connecting the installation end of needle stand, the other end is a syringe needle, the end face of syringe needle and the axis of needle tubing tilt, and this syringe needle is plane 11 near the end face of installation end, are designed to two arc-shaped concaves 12 away from the end face of installation end, the needle point 13 that two arc-shaped concave joints are formed for puncturing, circular arc concave surface 12 and plane 11 connect into the end face of two gradients of syringe needle of internal fistula pin, and inserting needle during convenient the puncture alleviates patient's misery as far as possible.
Regional puncture method commonly used at present adopts above-mentioned internal fistula pin repeated localised puncture in the zonule of internal fistula blood vessel, point of puncture is separated by less than 1cm, though the zone puncture method is simple to operation, but the damage blood vessel wall in various degree of puncture meeting repeatedly, need the frequent point of puncture of changing in case of necessity, when tissues such as this zone blood vessel wall are corrupted to a certain degree, easily cause hemangioma, bring great misery to patient.
Another kind of piercing method is a buttonhole formula puncture method, this method adopt above-mentioned internal fistula pin patient's internal fistula blood vessel accept same point of puncture, same angle, the same degree of depth three with puncture 8～12 times after, will form a fixed hypodermic tunnel, i.e. " buttonhole ", then with the internal fistula pin through the buttonhole inserting needle, need not puncture vessel again.This method is little to the damage of blood vessel than regional puncture method, use more extensive, but adopt common internal fistula pin when established buttonhole inserting needle, blood vessel still might be stabbed in its tip, bring unnecessary misery to the patient, therefore, be necessary to design a kind of internal fistula pin that does not have the puncture ability, be used for the operation of buttonhole formula puncture method after forming hypodermic tunnel, further improve the practicality of buttonhole formula puncture method.
The utility model content
Problem to be solved in the utility model provides a kind of buttonhole formula piercing method that is applicable to, can reduce damage, the internal fistula pin in prolongation internal fistula life-span to blood vessel wall as far as possible.
Problem to be solved in the utility model; can realize by following technical scheme: a kind of internal fistula pin of protecting blood vessel wall; it comprises body and needle tubing; one of described needle tubing is fixed on the described body; this is the installation end of needle tubing; the other end of needle tubing is a syringe needle; it is characterized in that: the annular end face of the needle tubing wall of described syringe needle forms one and needle tubing axis plane inclined; described annular end face is a circular arc away from the outward flange of installation end, and the needle tubing wall of this circular arc outward flange correspondence forms slick and sly blunt needle point.
The internal fistula pin that this utility model provides is applicable to buttonhole formula puncture method, during operation, first-selected sharp with plain edition internal fistula pin syringe needle, the tool penetration capacity promptly forms hypodermic tunnel to behind patient's the internal fistula vascular puncture 8 to 12 times, it is buttonhole, guarantee during puncture same point of puncture is punctured, and angle, the degree of depth of puncture are all identical; Adopt internal fistula pin of the present utility model directly to insert the internal fistula blood vessel then, can set up the hemodialysis path through established buttonhole.Because internal fistula pin of the present utility model is provided with slick and sly blunt needle point, in inserting needle, can not cause damage to the internal fistula blood vessel, thereby buttonhole formula puncture method is reduced to minimum to the injury of internal fistula blood vessel wall, effectively prolongs the service life of internal fistula, reduce internal fistula hemangioma odds greatly.
On above-mentioned basis, this utility model can be done following improvement:
The annular end face of described syringe needle becomes 15 °～30 ° angle with the needle tubing axis; Best angle is 23 °.Because needle tubing of the present utility model is through established buttonhole inserting needle, and buttonhole is formed by existing common internal fistula pin puncture, thereby the syringe needle of internal fistula pin of the present utility model is arranged to and the suitable angle of common internal fistula pin syringe needle, it is easier through the buttonhole inserting needle to make, and eases the pain.
The needle tubing wall of described syringe needle has the hollow out breach, and this hollow out breach is positioned at the orthographic projection scope of the annular end face of described syringe needle at the needle tubing wall of correspondence; Since puncture and dialysis hour hands tube wall can increasing blood flow resistance, the fistula vacancy mouth on the internal fistula pin needle tubing wall has guaranteed the unobstructed of blood flow in puncture and the dialysis procedure.
Body described in the utility model comprises helmet, joint, vessel clamp, conduit and needle stand; Described vessel clamp comprises annular framework, and described annular framework has the breach that makes its disconnection, and the wherein relative both sides of annular framework are connected by two check rods arranged in a crossed manner; Described conduit is through between the annular framework and two check rods of vessel clamp; One end of described conduit connects an end of described joint, and described helmet is connected the other end of joint; Described needle stand comprises body, and an other end that inserts described conduit of this body is inner and fixing; The installation end of described needle tubing inserts the inside, other end of the conduit of described needle stand and also fixes.
The middle part of the body outer tube wall of described needle stand is provided with two along the symmetric flank of body axis.
This utility model also comprises the internal fistula needle shield, and the conduit that described internal fistula needle shield is enclosed within described needle stand removably is equipped with of needle tubing.
Compared with prior art, since the internal fistula pin be provided with slick and sly blunt needle point, the buttonhole inserting needle that in buttonhole formula puncture method, uses internal fistula pin of the present utility model to form through common internal fistula pin puncture, can not cause any damage to the inwall of internal fistula blood vessel, effectively prevent angiomatous formation, alleviate patient's puncture pain; It is hemorrhage also can obviously to reduce point of puncture, invades the incidence rate that the profit piece forms and infects, the internal fistula service life that can obviously improve hemodialysis patient.
Description of drawings
Fig. 1 is the structural representation of the needle tubing of existing common internal fistula pin, and this moment, the installation end of needle tubing was a broken section;
Fig. 2 is the vertical view of Fig. 1, has omitted the installation end of needle tubing this moment;
Fig. 3 is the upward view of Fig. 1, has omitted the installation end of needle tubing this moment;
Fig. 4 is a structural representation of the present utility model;
Fig. 5 is a STRUCTURE DECOMPOSITION sketch map of the present utility model;
Fig. 6 is the structural representation of needle tubing of the present utility model, and this moment, the installation end of needle tubing was a broken section;
Fig. 7 is the vertical view of Fig. 6, has omitted the installation end of needle tubing this moment.
The specific embodiment
The internal fistula pin of the blood vessel wall protected shown in Fig. 4～7 is embodiment of the present utility model, and it has comprised body and needle tubing 6, and wherein body comprises helmet 1, joint 2, vessel clamp 3, conduit 4 and needle stand 5; Described vessel clamp 3 comprises annular framework 31, and described annular framework 31 has the breach 32 that makes its disconnection, and the wherein relative both sides of annular framework 31 are connected by two check rods arranged in a crossed manner 33; Described conduit 4 is through between the annular framework 31 and two check rods 33 of vessel clamp 3; One end of described conduit 4 connects an end of described joint 2, and described helmet 1 is connected the other end of joint 2; Described needle stand 5 comprises body 51, and the middle part of body 51 outer tube walls is provided with two along the symmetric flank 52 of body 51 axis, and an other end that inserts described conduit 4 of this body 51 is inner and fixing.
An inside, other end that is fixed on the conduit 51 of needle stand 5 of needle tubing 6 is also fixed, this is the installation end 61 of needle tubing, the other end of needle tubing is a syringe needle 62, and the annular end face of the needle tubing wall of syringe needle 62 forms one and needle tubing axis plane inclined, and this annular end face becomes 23 ° angle with needle tubing 6 axis; Annular end face is a circular arc away from the outward flange of installation end, and the needle tubing wall of this circular arc outward flange correspondence forms slick and sly blunt needle point 63.The needle tubing wall of syringe needle 62 has hollow out breach 64, and this hollow out breach is positioned at the orthographic projection scope of the annular end face of syringe needle at the needle tubing wall of correspondence.
This utility model also comprises internal fistula needle shield 7, and the conduit 51 that this internal fistula needle shield 7 is enclosed within described needle stand 5 removably is equipped with of needle tubing 6.
The internal fistula pin that this utility model provides is applicable to buttonhole formula puncture method, during operation, first-selected sharp with plain edition internal fistula pin syringe needle, the tool penetration capacity promptly forms hypodermic tunnel to behind patient's the internal fistula vascular puncture 8 to 12 times, it is buttonhole, guarantee during puncture same point of puncture is punctured, and angle, the degree of depth of puncture are all identical; Adopt internal fistula pin of the present utility model directly to insert the internal fistula blood vessel then, can set up the hemodialysis path through established buttonhole.After each hemodialysis finished, the doctor uses binder and the hemostasis piece is pushed hemostasis general three to five hours to the site of puncture, until wound incrustation healing, when dialysing once more behind the couple of days so, crust removed gets final product.
Claims (7)
1. the internal fistula pin that can protect blood vessel wall; it comprises body and needle tubing; one of described needle tubing (6) is fixed on the described body; this is the installation end (61) of needle tubing; the other end of needle tubing is syringe needle (62); it is characterized in that: the annular end face of the needle tubing wall of described syringe needle (62) forms one and needle tubing axis plane inclined, and described annular end face is a circular arc away from the outward flange of installation end, and the needle tubing wall of this circular arc outward flange correspondence forms slick and sly blunt needle point (63).
2. internal fistula pin according to claim 1 is characterized in that: the annular end face of described syringe needle (62) becomes 15 °～30 ° angle with needle tubing (6) axis.
3. internal fistula pin according to claim 2 is characterized in that: the annular end face of the syringe needle (62) of described needle tubing (6) becomes 23 ° angle with needle tubing (6) axis.
4. internal fistula pin according to claim 3 is characterized in that: the needle tubing wall of described syringe needle (62) has hollow out breach (64), and this hollow out breach is positioned at the orthographic projection scope of the annular end face of described syringe needle at the needle tubing wall of correspondence.
5. internal fistula pin according to claim 4 is characterized in that: described body comprises helmet (1), joint (2), vessel clamp (3), conduit (4) and needle stand (5); Described vessel clamp (3) comprises annular framework (31), and described annular framework (31) has the breach (32) that makes its disconnection, and the wherein relative both sides of annular framework (31) are connected by two check rods arranged in a crossed manner (33); Described conduit (4) is through between the annular framework (31) and two check rods (33) of vessel clamp (3); One end of described conduit (4) connects an end of described joint (2), and described helmet (1) is connected the other end of joint (2); Described needle stand (5) comprises body (51), and an other end that inserts described conduit (4) of this body (51) is inner and fixing; (6 installation end inserts the inside, other end of the conduit (51) of described needle stand (5) and also fixes described needle tubing.
6. internal fistula pin according to claim 5 is characterized in that: the middle part of body (51) outer tube wall of described needle stand (5) is provided with two along the symmetric flank of body (51) axis (52).
7. internal fistula pin according to claim 6 is characterized in that: also comprise internal fistula needle shield (7), the conduit (51) that described internal fistula needle shield (7) is enclosed within described needle stand (5) removably is equipped with of needle tubing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201493342U CN201624741U (en) | 2010-04-02 | 2010-04-02 | Internal-fistula needle capable of protecting vascular walls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201493342U CN201624741U (en) | 2010-04-02 | 2010-04-02 | Internal-fistula needle capable of protecting vascular walls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201624741U true CN201624741U (en) | 2010-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201493342U Expired - Lifetime CN201624741U (en) | 2010-04-02 | 2010-04-02 | Internal-fistula needle capable of protecting vascular walls |
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| Country | Link |
|---|---|
| CN (1) | CN201624741U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104784767A (en) * | 2015-03-10 | 2015-07-22 | 北京伏尔特技术有限公司 | Arteriovenous dialysis indwelling tube and using method thereof |
| CN107206159A (en) * | 2015-01-16 | 2017-09-26 | 旭化成医疗株式会社 | The manufacture method of pin and the pin |
| CN108720908A (en) * | 2018-08-23 | 2018-11-02 | 南通市第二人民医院 | A kind of the Hemodialysis fistula puncture needle and application method of display level angle |
| CN109998643A (en) * | 2019-02-28 | 2019-07-12 | 深圳市第二人民医院 | The new-type enhanced retardance needle of ultrasound |
-
2010
- 2010-04-02 CN CN2010201493342U patent/CN201624741U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107206159A (en) * | 2015-01-16 | 2017-09-26 | 旭化成医疗株式会社 | The manufacture method of pin and the pin |
| CN104784767A (en) * | 2015-03-10 | 2015-07-22 | 北京伏尔特技术有限公司 | Arteriovenous dialysis indwelling tube and using method thereof |
| CN108720908A (en) * | 2018-08-23 | 2018-11-02 | 南通市第二人民医院 | A kind of the Hemodialysis fistula puncture needle and application method of display level angle |
| CN109998643A (en) * | 2019-02-28 | 2019-07-12 | 深圳市第二人民医院 | The new-type enhanced retardance needle of ultrasound |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG BAIHE MEDICAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: FOSHAN NANHAI BAIHE MEDICAL TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 528225 software science and Technology Park, Taoyuan West Road, Nanhai District, Guangdong, Foshan, Shishan Patentee after: Guangzhou Baihe Medical Technology Co., Ltd. Address before: 528225 software science and Technology Park, Taoyuan West Road, Nanhai District, Guangdong, Foshan, Shishan Patentee before: Foshan Nanhai Baihe Medical Technology Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Internal-fistula needle capable of protecting vascular walls Effective date of registration: 20120424 Granted publication date: 20101110 Pledgee: Societe Generale Bank, Limited by Share Ltd, Foshan branch Pledgor: Guangzhou Baihe Medical Technology Co., Ltd. Registration number: 2012990000165 |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 528225, Guangdong, Shishan Province, Taoyuan East Road, Foshan, No. 2, 89 (3, 4) floor, 3, 4 (3-6) building Patentee after: GUANGDONG BAIHE MEDICAL TECHNOLOGY CO., LTD. Address before: 528225 software science and Technology Park, Taoyuan West Road, Nanhai District, Guangdong, Foshan, Shishan Patentee before: Guangzhou Baihe Medical Technology Co., Ltd. |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20140228 Granted publication date: 20101110 Pledgee: Societe Generale Bank, Limited by Share Ltd, Foshan branch Pledgor: Guangzhou Baihe Medical Technology Co., Ltd. Registration number: 2012990000165 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101110 |