CN101607106A - Dialysis catheter - Google Patents
Dialysis catheter Download PDFInfo
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- CN101607106A CN101607106A CNA2008101230679A CN200810123067A CN101607106A CN 101607106 A CN101607106 A CN 101607106A CN A2008101230679 A CNA2008101230679 A CN A2008101230679A CN 200810123067 A CN200810123067 A CN 200810123067A CN 101607106 A CN101607106 A CN 101607106A
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- dialysis catheter
- dialysis
- transition conduit
- tube wall
- blood
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Abstract
It is big to the invention discloses a kind of vertical comprcssive strength, and laterally the drag performance is good, guarantees the dialysis catheter of the smooth and easy circulation of blood high speed, and this dialysis catheter comprises body, and a hairspring that is used to strengthen body intensity is set in the tube wall of described body; Several dialysis through holes are set on the tube wall of body; On the outer surface of tube wall around described each dialysis through hole, several salient points are set simultaneously.
Description
Technical field
The invention belongs to the surgical medical equipment technical field, relate in particular to a kind of dialysis catheter that is used for hemodialysis.
Background technology
At present, cardiovascular surgical procedure has become the medical skill of generally carrying out, and every year is implemented hundreds thousand of routine cardiovascular surgical procedures in the whole world approximately, and the operation process cardiac stops to beat, the heart, pulmonary function stop, during just need extracorporeal circulation equipment to substitute the function of cardiopulmonary.Extracorporeal circulation (cardiopulmonary bypass) is guided to venous blood in external heart-lung machine's the oxygenator (artificial lung) and is carried out oxygenate, make it to become arterial blood, send tremulous pulse in the body back to through blood pump (the artificial heart) again, thereby replace cardiopulmonary to keep systemic blood circulation and respiratory function, make systemic blood temporarily not flow through heart and lungs, this is prerequisite and the important assurance of carrying out cardiac operation under direct vision.Existing dialysis catheter need be used assistive devices such as blood vessel dilator, short handle suction pump, vessel dilator, vascular retractor in order to insert blood vessel smoothly.Little, the horizontal drag poor performance of vertical comprcssive strength of the dialysis catheter of making by soft elastic material, so it directly can not be inserted blood vessel, and in operation process, be prone to the flat flat phenomenon of dialysis catheter, need to use a plurality of assistive devices to avoid the problems referred to above thus.But the use of a plurality of assistive devices increases the difficulty of operation technique, has influenced the operation process.And because existing dialysis catheter is only at front opening, velocity of blood flow is restricted.This dialysis catheter can be adsorbed on the defective that the catheter proximal end opening part stops the smooth and easy circulation of blood with blood vessel in use simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of vertical comprcssive strength big, and laterally the drag performance is good, guarantees the dialysis catheter of the smooth and easy circulation of blood high speed.
In order to address the above problem, dialysis catheter comprises body, and a hairspring that is used to strengthen body intensity is set in the tube wall of described body; Several dialysis through holes are set on the tube wall of body; On the outer surface of tube wall around described each dialysis through hole, several salient points are set simultaneously.
As improvement of the present invention, also comprise a transition conduit, the front end of described transition conduit removably is connected the rear end of body.
Improve as of the present invention, the junction between body and the transition conduit is horn-like again.
Improve again as of the present invention, the grip part that can be convenient to grasped is set on the lateral surface of described transition conduit.
Improve as of the present invention again, comprise a joint in addition, the front end of described joint removably is connected the rear end of transition conduit.
Improve again as of the present invention, comprise a lining core in addition, one through hole that is used to place seal wire is set at its length direction of lining core upper edge; Described lining core can be set in the body, closely cooperates mutually with body.
Compare with existing dialysis catheter,, not only strengthened vertical comprcssive strength of dialysis catheter, and the horizontal drag performance of dialysis catheter is good owing to insert hairspring in the tube wall of dialysis catheter among the present invention.This dialysis catheter at first places seal wire in the tube chamber of conduit before inserting blood vessel because originally the effect of blood vessel dilator is arranged, so can be successfully with the front end insertion blood vessel of dialysis catheter.Based on big vertical comprcssive strength of dialysis catheter and good horizontal drag performance, thereby dialysis catheter can successfully be inserted in the blood vessel under the help of seal wire and blood vessel dilator, and need not to be used other assistive devices.Simplify operation technique thus, accelerated the operation process.In addition, this dialysis catheter can also be set up and can or get involved the operation path that the tiny medical apparatus and instruments of class passes in and out for operating theater instruments.For example when placing endovascular stent, just can use this dialysis catheter.Because it has enough internal diameters, can provide corresponding space to allow the part operating theater instruments or get involved the tiny medical apparatus and instruments of class to pass in and out, have enough intensity simultaneously and support that blood vessel is indeformable.This dialysis catheter also can be used for supporting other armarium and makes extracorporeal circulation usefulness, for example transmits medicinal liquid, body fluid, blood etc.Several dialysis through holes that are provided with on the tube wall can be accelerated velocity of blood flow; And blood vessel wall is adsorbed on the side opening place when several salient points of being provided with can prevent effectively that velocity of blood flow from accelerating on the outer surface of tube wall of each dialysis through hole, not only can protect blood vessel, can guarantee blood flow again simultaneously.
The transition conduit that is connected on the body can be inserted the application of force degree that be convenient to grasp when blood vessel is operated to dialysis catheter at dialysis catheter, and the grip part that is arranged on the transition conduit lateral surface can be convenient to the operator grasping transition conduit.
Junction between body and the transition conduit is designed to horn-like, in the time of can preventing that body from penetrating blood vessel human body is caused damage, can prevent simultaneously blood by body in the transition conduit flow process, produce foam or whirlpool in the junction, destroy blood function; Simultaneously also can prevent entrained air in the blood, threaten patient.
Joint is used to connect external equipment.
The lining core can closely cooperate with dialysis catheter, to strengthen the elasticity of dialysis catheter in the piercing process.The thread eye that is arranged on the lining core is used to place seal wire.
Description of drawings
Fig. 1 is a kind of structural representation of dialysis catheter among the present invention;
Fig. 2 is the partial enlarged drawing of A part among Fig. 1;
Fig. 3 is the forward structural representation of dialysis catheter.
The specific embodiment
As depicted in figs. 1 and 2, dialysis catheter comprises a body 1, and a hairspring 2 is set in the tube wall of described body 1.
As shown in Figure 3, several dialysis through holes 3 are set on body 1 forward tube wall, on the outer surface of tube wall around described each dialysis through hole 3, several salient points 4 are set.
Get back to Fig. 1, the rear end of body 1 removably is connected the front end of transition conduit 5.In the present embodiment, being provided with on the tube wall medial surface of body 1 rear end is one outstanding, on the front end lateral surface of transition conduit 5 seam is set, and above-mentioned outstanding cooperatively interacting with seam is connected.Described body 1 is to be made by soft elastic material, thereby makes things convenient for the dismounting between body 1 and the transition conduit 5 to connect.
Body 1 is horn-like gradual transition with the junction of transition conduit 5, thereby human body is caused damage can prevent that body 1 from penetrating blood vessel the time, can prevent simultaneously blood by body 1 in transition conduit 5 flow process, produce foam or whirlpool in the junction, destroy blood function; Simultaneously also can prevent entrained air in the blood, threaten patient.
In addition, a grip part 6 is set on the lateral surface of transition conduit 5, this grip part 6 can be convenient to grasped transition conduit 5.
The rear end of transition conduit 5 removably is connected the front end of joint 7.In the present embodiment, several projecting teeths 8 are set on the rear end lateral surface of transition conduit 5, a part of joint 7 is enclosed within the outside of transition conduit 5 rear ends.Described joint 7 also is to be made by soft elastic material, so be closely connected between above-mentioned several projecting teeths 8 and the joint 7.
In operation process, in order to resist vascular pressure, guarantee that dialysis catheter inserts blood vessel smoothly, also comprise a lining core 9 in addition.The front end of described lining core 9 is provided with a tip 9-1, and at its length direction of lining core 9 upper edges the one through hole 9-2 that is used to place seal wire is set.Before the operation, lining core 9 is pierced into joint 7 from the rear end of joint 7, serve as a contrast core 9 then and pass transition conduit 5 and body 1 successively, the tip 9-1 of backsight core 9 passes from the front end of body 1.The medial surface of part body 1 closely cooperates mutually with the lateral surface of corresponding part lining core 9.Shown cooperatively interact state when being connected of lining core 9 and body 1 among Fig. 1.After dialysis catheter inserts blood vessel, will serve as a contrast core 9 again and from body 1, extract out.
Body 1 front end among the present invention can be shapes such as straight type, screw type, arc.
Claims (6)
1, a kind of dialysis catheter comprises body, it is characterized in that: a hairspring that is used to strengthen body intensity is set in the tube wall of described body; Several dialysis through holes are set on the tube wall of body; On the outer surface of tube wall around described each dialysis through hole, several salient points are set simultaneously.
2, a kind of dialysis catheter as claimed in claim 1 is characterized in that: also comprise a transition conduit, the front end of described transition conduit removably is connected the rear end of body.
3, a kind of dialysis catheter as claimed in claim 2, it is characterized in that: the junction between body and the transition conduit is horn-like.
4, a kind of dialysis catheter as claimed in claim 2 is characterized in that: the grip part that can be convenient to grasped is set on the lateral surface of described transition conduit.
5, a kind of dialysis catheter as claimed in claim 2 is characterized in that: comprise a joint in addition, the front end of described joint removably is connected the rear end of transition conduit.
6, as any described a kind of dialysis catheter of claim 1-5, it is characterized in that: comprise a lining core in addition, one through hole that is used to place seal wire is set at its length direction of lining core upper edge; Described lining core can be set in the body, closely cooperates mutually with body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101230679A CN101607106A (en) | 2008-06-20 | 2008-06-20 | Dialysis catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101230679A CN101607106A (en) | 2008-06-20 | 2008-06-20 | Dialysis catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101607106A true CN101607106A (en) | 2009-12-23 |
Family
ID=41481118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101230679A Pending CN101607106A (en) | 2008-06-20 | 2008-06-20 | Dialysis catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101607106A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113144375A (en) * | 2021-04-16 | 2021-07-23 | 上海市胸科医院 | Anti-wall-sticking double-resistance nano hemodialysis catheter |
| CN116271416A (en) * | 2023-03-15 | 2023-06-23 | 江苏赛腾医疗科技有限公司 | Intravenous catheter |
-
2008
- 2008-06-20 CN CNA2008101230679A patent/CN101607106A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113144375A (en) * | 2021-04-16 | 2021-07-23 | 上海市胸科医院 | Anti-wall-sticking double-resistance nano hemodialysis catheter |
| CN113144375B (en) * | 2021-04-16 | 2024-04-02 | 上海市胸科医院 | Wall-sticking-preventing double-resistance nano hemodialysis catheter |
| CN116271416A (en) * | 2023-03-15 | 2023-06-23 | 江苏赛腾医疗科技有限公司 | Intravenous catheter |
| CN116271416B (en) * | 2023-03-15 | 2023-11-21 | 江苏赛腾医疗科技有限公司 | intravenous catheter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091223 |