CN105031802A - Subcutaneous sneaking type multi-cavity drainage catheter - Google Patents

Subcutaneous sneaking type multi-cavity drainage catheter Download PDF

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Publication number
CN105031802A
CN105031802A CN201510538220.4A CN201510538220A CN105031802A CN 105031802 A CN105031802 A CN 105031802A CN 201510538220 A CN201510538220 A CN 201510538220A CN 105031802 A CN105031802 A CN 105031802A
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CN
China
Prior art keywords
connection
catheter
main body
drainage
cavity
Prior art date
Application number
CN201510538220.4A
Other languages
Chinese (zh)
Inventor
李秀芳
吕然博
徐丽英
李加民
Original Assignee
威海威创医疗器械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 威海威创医疗器械有限公司 filed Critical 威海威创医疗器械有限公司
Priority to CN201510538220.4A priority Critical patent/CN105031802A/en
Publication of CN105031802A publication Critical patent/CN105031802A/en

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Abstract

The invention provides a subcutaneous sneaking type multi-cavity drainage catheter, and relates to the technical field of medical apparatuses and instruments. The subcutaneous sneaking type multi-cavity drainage catheter comprises a catheter body and branch drainage tubes, and is characterized in that the catheter body and the branch drainage tubes are movably connected through a connection device, the connection device comprises a connection base and a connection lock nut, a connection screw hole is formed in the rear portion of the connection lock nut, a conical locking hole connected with the connection screw hole is formed in the front portion of the connection lock nut, the connection lock nut is arranged at the end, away from a patient, of the catheter body in a sleeving mode through the conical locking hole, a connection cavity matched with a drainage cavity in the catheter body is formed in the connection base, the branch drainage tubes are arranged at the rear end of the connection base in the mode that the branch drainage tubes are communicated with the connection cavity, external threads matched with the connection screw hole are formed in the outer wall of the connection base, and an insertion connection hole connected with the connection cavity and matched with the drainage cavity of the catheter body in an inserted connection mode is arranged at the front end of the connection base. The subcutaneous sneaking type multi-cavity drainage catheter is simple in structure, low in cost and convenient to use, and greatly lowers the postoperative infection probability.

Description

The subcutaneous formula multi-cavity drainage catheter that moves under water

Technical field

The present invention relates to technical field of medical instruments, say it is that a kind of structure is simple, with low cost, easy to use in detail, greatly reduce the subcutaneous formula multi-cavity drainage catheter that moves under water of postoperative infection probability.

Background technology

We know, the structure of the existing multi-cavity drainage catheter for neural inside and outside section of hospital or brain section Clinical practice is: be provided with catheter main body, be provided with at least two drainage lumens be arranged in parallel in catheter main body, catheter main body patient end tube wall is provided with the through hole be communicated with drainage lumens; Catheter main body be provided with at least two drain arms away from patient end, a drain arm is connected with a drainage lumens, and drain arm is provided with liquid stopping clamp, female Luer for drain, sampling and injection, and female Luer is provided with calparine cap.During use, the patient end of catheter main body is inserted the lesions position needing drain, be connected with drainage bag through female Luer, carry out drain by the drain arm of (master) drainage lumens, the drain arm of other drainage lumens may be used for sampling, rinses or measure accurately the pressure of drain site.Clinically show, drain infection probability increases along with the prolongation of drainage time, and sets up hypodermic tunnel, and fixing drainage catheter away from wound place can reduce postoperative infection greatly.Only have single chamber drainage catheter just can carry out subcutaneous operation of moving under water in the clinical drainage of the inside and outside section of current nerve or brain section, its subcutaneous process of moving under water is: single chamber drainage catheter connect subcutaneous pull needle end away from patient end, use subcutaneous pull needle to drive single chamber drainage catheter to move under water subcutaneous.And multi-cavity drainage catheter is owing to being provided with at least two drain arms away from patient end, drain arm is provided with the parts such as liquid stopping clamp, female Luer, after causing patient end to insert lesions position, patient end far away cannot subcutaneously again move under water outside lead body, causes infection probability greatly to increase.

Summary of the invention

The object of the invention is to solve above-mentioned the deficiencies in the prior art, provide a kind of structure simple, with low cost, easy to use, greatly reduce the subcutaneous formula multi-cavity drainage catheter that moves under water of postoperative infection probability.

The present invention solves the technical scheme that above-mentioned the deficiencies in the prior art adopt:

A kind of subcutaneous formula multi-cavity drainage catheter that moves under water, comprise catheter main body, drain arm, it is characterized in that catheter main body is flexibly connected through connecting device with drain arm, described connecting device comprises Connection Block and is connected lock nut, connect in lock nut rear portion and be provided with connecting screw hole, connect in lock nut front portion and be provided with the taper lock tieholen be connected with connecting screw hole, connect lock nut and be located on the patient end far away of catheter main body through cone locking borehole jack; The connection chamber matched with the drainage lumens in catheter main body is provided with in Connection Block, what drain arm was connected with connection chamber is located at Connection Block rearward end, the outer wall of Connection Block is provided with the external screw thread matched with connecting screw hole, and Connection Block front end is provided with the insertion pipe being connected with connection chamber, coordinating with the drainage lumens grafting of catheter main body.

The external diameter of the insertion pipe described in the present invention is greater than the internal diameter of the drainage lumens coordinated with it.Insertion pipe plays the effect that tensioner is fixed, is communicated with drainage lumens and drain arm.

Insertion pipe described in the present invention is tapered, the external diameter of insertion pipe front end and the internal diameter external diameter that is equal, rear end of drainage lumens coordinated with it be the 1.1-1.3 of the internal diameter of the drainage lumens coordinated with it doubly.Preferred version is: the external diameter of insertion pipe front end and the internal diameter external diameter that is equal, rear end of drainage lumens coordinated with it are 1.1 times of the internal diameter of the drainage lumens coordinated with it.

The internal diameter of the taper lock tieholen front end described in the present invention is 0.9-1.1 times of catheter main body external diameter, the internal diameter of taper lock tieholen rear end is 1-1.5 times of catheter main body external diameter, preferred version is: the internal diameter of taper slide opening front end is identical with catheter main body external diameter, and the internal diameter of taper slide opening rear end is 1.2 times of catheter main body external diameter.

Be provided with in taper lock tieholen rear portion described in the present invention, with insertion pipe opposite position and there is flexible hold-down ring.Hold-down ring can be polyethylene ring or rubber ring, and when insertion pipe insertion drainage lumens, catheter main body outwards expand, Compliant pressure ring produces the outer wall of catheter main body and tightens effect, and insertion pipe and drainage lumens inwall are fitted completely, improves the sealing of junction.

The present invention in use, by catheter main body under connecting the dismounting of lock nut place, after coordinating guiding draw point that the patient end of catheter main body is inserted lesions position, catheter main body connects subcutaneous pull needle end away from patient end, uses subcutaneous pull needle to drive catheter main body to move under water subcutaneous.After completing subcutaneous moving under water, by connect lock nut be enclosed within catheter main body away from patient end, make stretching out on rear side of connecting screw hole away from patient end of catheter main body, be inserted therein after drainage lumens corresponding on catheter main body for insertion pipe is aimed at.Slide backward connect lock nut, make it contact with Connection Block after tighten connection, in this process, catheter main body fully compresses, makes to be tightly connected between insertion pipe and catheter main body by taper lock tieholen.Present invention achieves multi-cavity drainage catheter and carry out subcutaneous function of moving under water, there is structure simple, with low cost, easy to use, greatly reduce the advantages such as postoperative infection.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is the A place partial enlarged drawing of Fig. 1.

Decomposition texture schematic diagram of the present invention during Fig. 3.

Fig. 4 is the B place partial enlarged drawing of Fig. 3.

Detailed description of the invention

The subcutaneous formula multi-cavity drainage catheter that moves under water as Figure 1-4, comprise catheter main body 2, drain arm 6, catheter main body 2 leading section is provided with the through hole 1 be communicated with drainage lumens 7, as can be seen from the figure, this multi-cavity drainage catheter is three chamber drainage catheters, the rear end of catheter main body is provided with three drain arms, every root drain arm is connected with a drainage lumens 7, drain arm is provided with liquid stopping clamp, female Luer for drain, sampling and injection, catheter main body is provided with ring for fixing 3, during use, for A/C main body, make its nonvoluntary movement.Said structure is prior art, repeats no more.The invention is characterized in that catheter main body 2 is flexibly connected through connecting device with drain arm 6, described connecting device comprises Connection Block 5 and is connected lock nut 4, connect in lock nut 4 rear portion and be provided with connecting screw hole, to connect in lock nut 4 front portion to be provided with and be connected with connecting screw hole, diameter becomes large taper lock tieholen 9 gradually from front to back, connects lock nut 4 and is set on the patient end far away (rear end) of catheter main body 2 through taper lock tieholen 9; In Connection Block, 5 are provided with and the drainage lumens 7(quantity in catheter main body 2 and position) connection chamber that matches, what drain arm 6 was connected with connection chamber is located at Connection Block 5 rearward end, the outer wall of Connection Block 5 leading section is provided with the external screw thread matched with connecting screw hole, and Connection Block front end is provided with the insertion pipe 10 being connected with connection chamber, coordinating with the drainage lumens grafting of catheter main body.The external diameter of insertion pipe 10 is greater than the internal diameter of the drainage lumens coordinated with it.Insertion pipe plays the effect that tensioner is fixed, is communicated with drainage lumens and drain arm.Insertion pipe is tapered, the external diameter of insertion pipe front end and the internal diameter external diameter that is equal, rear end of drainage lumens coordinated with it be the 1.1-1.3 of the internal diameter of the drainage lumens coordinated with it doubly.Preferred version is: the external diameter of insertion pipe front end and the internal diameter external diameter that is equal, rear end of drainage lumens coordinated with it are 1.1 times of the internal diameter of the drainage lumens coordinated with it.Grafting is convenient, connects more firm.The internal diameter of the taper lock tieholen front end described in invention is 0.9-1.1 times of catheter main body external diameter, the internal diameter of taper lock tieholen rear end is 1-1.5 times of catheter main body external diameter, preferred version is: the internal diameter of taper slide opening front end is identical with catheter main body external diameter, and the internal diameter of taper slide opening rear end is 1.2 times of catheter main body external diameter.

The present invention improves further, is provided with and has flexible hold-down ring 8 in described taper lock tieholen rear portion, with insertion pipe opposite position.Hold-down ring 8 can be polyethylene ring or rubber ring, and when insertion pipe insertion drainage lumens, catheter main body outwards expand, Compliant pressure ring produces the outer wall of catheter main body and tightens effect, and insertion pipe and drainage lumens inwall are fitted completely, improves the sealing of junction.

The present invention in use, by catheter main body under connecting the dismounting of lock nut place, after coordinating guiding draw point that the patient end of catheter main body is inserted lesions position, catheter main body connects subcutaneous pull needle end away from patient end, uses subcutaneous pull needle to drive catheter main body to move under water subcutaneous.After completing subcutaneous moving under water, by connect lock nut be enclosed within catheter main body away from patient end, make stretching out on rear side of connecting screw hole away from patient end of catheter main body, be inserted therein after drainage lumens corresponding on catheter main body for insertion pipe is aimed at.Slide backward connect lock nut, make it contact with Connection Block after tighten connection, in this process, catheter main body fully compresses, makes to be tightly connected between insertion pipe and catheter main body by taper lock tieholen.Present invention achieves multi-cavity drainage catheter and carry out subcutaneous function of moving under water, there is structure simple, with low cost, easy to use, greatly reduce the advantages such as postoperative infection.

Claims (5)

1. the subcutaneous formula multi-cavity drainage catheter that moves under water, comprise catheter main body, drain arm, it is characterized in that catheter main body is flexibly connected through connecting device with drain arm, described connecting device comprises Connection Block and is connected lock nut, connect in lock nut rear portion and be provided with connecting screw hole, connect in lock nut front portion and be provided with the taper lock tieholen be connected with connecting screw hole, connect lock nut and be located on the patient end far away of catheter main body through cone locking borehole jack; The connection chamber matched with the drainage lumens in catheter main body is provided with in Connection Block, what drain arm was connected with connection chamber is located at Connection Block rearward end, the outer wall of Connection Block is provided with the external screw thread matched with connecting screw hole, and Connection Block front end is provided with the insertion pipe being connected with connection chamber, coordinating with the drainage lumens grafting of catheter main body.
2. the subcutaneous formula multi-cavity drainage catheter that moves under water according to claim 1, is characterized in that the external diameter of described insertion pipe is greater than the internal diameter of the drainage lumens coordinated with it.
3. the subcutaneous formula multi-cavity drainage catheter that moves under water according to claim 1, it is characterized in that described insertion pipe is tapered, the external diameter of insertion pipe front end and the internal diameter external diameter that is equal, rear end of drainage lumens coordinated with it be the 1.1-1.3 of the internal diameter of the drainage lumens coordinated with it doubly.
4. the subcutaneous formula multi-cavity drainage catheter that moves under water according to claim 1, it is characterized in that the internal diameter of described taper lock tieholen front end is 0.9-1.1 times of catheter main body external diameter, the internal diameter of taper lock tieholen rear end is 1-1.5 times of catheter main body external diameter.
5. the subcutaneous formula multi-cavity drainage catheter that moves under water according to claim 1, is characterized in that being provided with in described taper lock tieholen rear portion, with insertion pipe opposite position to have flexible hold-down ring.
CN201510538220.4A 2015-08-28 2015-08-28 Subcutaneous sneaking type multi-cavity drainage catheter CN105031802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510538220.4A CN105031802A (en) 2015-08-28 2015-08-28 Subcutaneous sneaking type multi-cavity drainage catheter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510538220.4A CN105031802A (en) 2015-08-28 2015-08-28 Subcutaneous sneaking type multi-cavity drainage catheter

Publications (1)

Publication Number Publication Date
CN105031802A true CN105031802A (en) 2015-11-11

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322225A2 (en) * 1987-12-22 1989-06-28 Vas-Cath Incorporated Triple lumen catheter
CN2721128Y (en) * 2004-09-09 2005-08-31 吕进 Disposable catheter and joint valve treating
CN1929888A (en) * 2004-02-11 2007-03-14 舍伍德服务股份公司 Reversible multi lumen catheter
US20080214991A1 (en) * 2007-03-02 2008-09-04 Brett Haarala Catheter system with attachable catheter hub
CN101541371A (en) * 2006-10-25 2009-09-23 费森尤斯卡比德国有限公司 Connection piece for an enteral transfer system
CN102573984A (en) * 2009-07-28 2012-07-11 汉斯-于尔根·霍普夫 Connection system for fluid connection in medicine
CN204147405U (en) * 2014-10-22 2015-02-11 山东大正医疗器械股份有限公司 Subcutaneous moving under water uses multi-cavity drainage catheter
CN204910457U (en) * 2015-08-28 2015-12-30 威海威创医疗器械有限公司 Subcutaneous formula multicavity associated drainage catheter that moves under water

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322225A2 (en) * 1987-12-22 1989-06-28 Vas-Cath Incorporated Triple lumen catheter
CN1929888A (en) * 2004-02-11 2007-03-14 舍伍德服务股份公司 Reversible multi lumen catheter
CN2721128Y (en) * 2004-09-09 2005-08-31 吕进 Disposable catheter and joint valve treating
CN101541371A (en) * 2006-10-25 2009-09-23 费森尤斯卡比德国有限公司 Connection piece for an enteral transfer system
US20080214991A1 (en) * 2007-03-02 2008-09-04 Brett Haarala Catheter system with attachable catheter hub
CN102573984A (en) * 2009-07-28 2012-07-11 汉斯-于尔根·霍普夫 Connection system for fluid connection in medicine
CN204147405U (en) * 2014-10-22 2015-02-11 山东大正医疗器械股份有限公司 Subcutaneous moving under water uses multi-cavity drainage catheter
CN204910457U (en) * 2015-08-28 2015-12-30 威海威创医疗器械有限公司 Subcutaneous formula multicavity associated drainage catheter that moves under water

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