WO2020029329A1

WO2020029329A1 - Secondary fixing device at tail end of deep vein catheter

Info

Publication number: WO2020029329A1
Application number: PCT/CN2018/101774
Authority: WO
Inventors: 张敏; 祁絮才; 曹玲钰
Original assignee: 张敏
Priority date: 2018-08-08
Filing date: 2018-08-22
Publication date: 2020-02-13
Also published as: CN108853686A

Abstract

A secondary fixing device at the tail end of a deep vein catheter, comprising a medical tape (1). The medical tape (1) has a first adhesive side (11) and a first fuzzy side (12). The first adhesive side (11) of the medical tape (1) is adhered to the neck of a patient. Two first binding tapes (2) are adhered to the first fuzzy side (12) of the medical tape (1). A first hook side (21) and a second adhesive side (22) are provided on the same side of the first binding tape (2). The first hook side (21) of the first binding tape (2) and the first fuzzy side (12) of the medical tape (1) are adhered to each other. The second adhesive side (22) of the first binding tape (2) is adhered to the neck of the patient. A first fixing piece (3) is further fixed on the medical tape (1). The first fixing piece (3) is provided with two circular slots (31). Elastic protrusions (310) are inserted in the two slots (31). The two elastic protrusions (310) are both fixed on a second fixing piece (4). Hoops (41) are fixed on both the second fixing piece (4) and the first binding tape (2). The secondary fixing device at the tail end of a deep vein catheter can firmly fix the deep vein catheter.

Description

Secondary fixing device for deep vein catheterization end

Technical field

The invention relates to the field of catheter fixing devices, and more particularly, it relates to a secondary fixing device for the end of a deep vein catheter.

Background technique

Deep venous catheterization is also called central venous catheterization. Central venous catheterization is an important pathway for continuous CVP detection, fluid replacement, blood transfusion, parenteral nutrition, and input of various rescue drugs such as vasoactive drugs during and after surgery in critically ill patients. In addition, repeated puncture of peripheral veins is avoided, which has been repeatedly promoted, especially in intensive care units such as ICU and CCU.

The deep vein catheter is often led out of the carotid artery. The deep vein catheter at the carotid artery must be firmly attached as an external catheter. Once the deep vein catheter falls off, the patient will need to re-insert the deep vein catheter, which will increase The patient's pain is also not conducive to the recovery of the patient's body. The existing method of fixing the deep vein catheter in the neck is to use a tape to stick it directly, which is not reliable enough.

Summary of the invention

In view of the shortcomings of the prior art, the object of the present invention is to provide a secondary fixing device for the end of a deep vein catheterization to solve the problems mentioned in the background art.

To achieve the above objective, the present invention provides the following technical solutions:

A secondary fixation device for the end of a deep vein catheter, which includes a medical tape having a first adhesive surface and a first matte surface, and the first adhesive surface of the medical tape is adhered to a patient's neck, Two first straps are affixed to a first matte side of the medical tape, and a first hook surface and a second adhesive surface are provided on the same side of the first strap, and the first hooks of the first strap are And the first matte side of the medical tape are adhered to each other, the second sticking surface of the first strap is adhered to the patient's neck, and a first fixing sheet is also fixed on the medical tape, and the first fixing sheet is Two circular grooves are provided. Two of the grooves are inserted with elastic bumps with a circular cross section. The two elastic bumps are both fixed on a second fixing piece. The second fixing piece is A hoop is fixed to the first strap and one end of the hoop is fixed with an elastic plug. An end of the first plug is fixed with an elastic stop. The other end of the hoop is provided with A socket into which a post is inserted.

By using the above technical solution, after inserting the post and the stopper on the hoop into the jack, the hoop can firmly hold the deep vein tube, under the action of the third adhesive surface of the first band, The first strap can be glued to the patient's neck. When the elastic projection is inserted into the groove, the second fixing piece will be firmly fixed on the first fixing piece, and the hoop position on the second fixing piece will be fixed. Therefore, the secondary fixing device at the end of the deep vein catheterization has the characteristics of firmly fixing the deep vein catheter.

Further, the medical tape is a pressure-sensitive medical tape.

By adopting the above technical solution, the pressure-sensitive medical tape is a special type of tape, which is composed of pressure-sensitive adhesive, base material, primer, back surface treating agent, etc., and its role is to make the pressure-sensitive medical tape have pressure-sensitive adhesion. Characteristics: When in use, light pressure will make the pressure-sensitive medical tape firmly adhere to the neck of the patient.

Further, the material of the elastic bumps, the insert posts and the stoppers is made of silicone.

By adopting the above technical scheme, the silicone material has a certain elasticity, which meets the requirements of elasticity. Secondly, the silicone material is relatively mild, non-toxic and non-irritating.

Further, the diameter of the elastic bump is larger than the diameter of the groove by 0.4-0.6 mm.

By adopting the above technical scheme, the elastic bump is larger than the groove diameter by 0.4-0.6mm, making the elastic bump more stable after being inserted into the groove.

Further, the diameter of the insertion post is 1-2 mm smaller than the diameter of the insertion hole, and the diameter of the stopper is 0.6-1 mm larger than the diameter of the insertion hole.

By adopting the above technical solution, the stopper can be deformed out of the jack. The diameter of the plug is 1-2 mm smaller than the diameter of the jack. The diameter of the stop is 0.6-1 mm larger than the diameter of the jack, which will make the plug and the stop. Easily inserted into the jack, it will not fall off the jack after the deformation is restored.

Further, the inner diameter of the hoop is the same as the diameter of the venous catheter.

By adopting the above technical solution, the inner diameter of the hoop and the diameter of the venous catheter are the same, so that the venous catheter can be firmly fixed in the hoop without deformation.

Further, two second straps are fixed on the second fixing piece, and the second strap has a third adhesive surface, and the third adhesive surface is adhered to the neck of the patient.

By adopting the above technical solution, the second sticking surface of the second band is used to assist adhesion to the patient's neck, which can increase the reliability of the device for fixing the venous catheter.

Further, the shape of the medical tape is square when unfolded, and the side length of the medical tape is 5-6 cm.

By adopting the above technical solution, the square medical tape with a side length ranging from 5 to 6 cm is neither too large nor too small, which can satisfy the comfort of the patient during use.

The invention also provides a method for using a secondary fixing device at the end of a deep vein catheterization, which specifically includes the following steps:

S1: Paste the first adhesive surface of the medical tape on the neck catheter of the patient;

S2: insert the elastic bump on the second fixing piece into the groove on the first fixing piece, and fix the second fixing piece and the first fixing piece together;

S3: Pull the second fixing piece and the opening of the hoop on the first strap, wrap the hoop around the venous catheter, and then insert the post and the stopper into the jack until the stopper comes out of the jack. Post into jack;

S4: bonding the first hook surfaces of the two first straps to the first matte surface of the medical tape;

S5: Adhere the third adhesive faces of the two second straps on the second fixing sheet to the patient's neck.

In summary, the present invention mainly has the following beneficial effects: the secondary fixing device at the end of the deep vein catheterization has the characteristics of firmly fixing the deep vein catheter, can firmly fix the deep vein catheter to the neck, and can effectively prevent The detachment of the deep vein catheter; secondly, the secondary fixation device at the end of the deep vein catheterization has the characteristics of convenient use.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is one of the structural schematic diagrams of an embodiment provided by the present invention; FIG.

FIG. 2 is an enlarged structural diagram of a portion C in FIG. 1; FIG.

3 is a second schematic structural diagram of an embodiment provided by the present invention;

FIG. 4 is an enlarged structural diagram of a portion D in FIG. 3; FIG.

5 is a structural cross-sectional view of an embodiment provided by the present invention;

FIG. 6 is an enlarged structure diagram of a part E in FIG. 5.

In the picture: 1. Medical tape; 11. First adhesive surface; 12. First matte surface; 2. First strap; 21; First hook surface; 22; Second adhesive surface; 3. First fixing piece 31, grooves, 310, elastic bumps, 4, second fixing piece, 41, hoop, 410, plunger, 411, stop, 412, jack, 5, second strap, 51, third Paste faces.

detailed description

The present invention is further described in detail below with reference to the accompanying drawings 1-6.

Example 1

As shown in FIG. 1 to FIG. 6, a secondary fixing device at the end of a deep vein catheterization includes a medical tape 1, wherein the medical tape 1 has a first adhesive surface 11 and a first rough surface 12, and the medical tape 1 has a relatively Good air permeability, which can avoid the adverse effects such as peeling of the patient's skin. The first adhesive surface 11 of the medical tape 1 is adhered to the patient's neck. The first adhesive surface 11 can be used to adhere the medical tape 1 to the patient's body. ; In order to make the fixed deep venous catheter more secure, two first straps 2 are affixed to the first matte side 12 of the medical tape 1, wherein the first hook surface 21 and the first The two adhesive surfaces 22, the first hook surface 21 of the first band 2 and the first matte surface 12 of the medical tape 1 are adhered to each other, so that the first band 2 can be fixed on the medical tape 1 and the first band The second sticking surface 22 of 2 is adhered to the neck of the patient, which can increase the firmness of sticking to the neck; at the same time, a first fixing piece 3 is also fixed on the medical tape 1, and the first fixing piece 3 is provided on the first fixing piece 3. Two circular grooves 31 are inserted into the two grooves 31, and two elastic protrusions 310 having a circular cross section are inserted into the two grooves 31. The elastic bumps 310 are all fixed on the second fixing piece 4. A hoop 41 is fixed on the second fixing piece 4 and the first strap 2. One end of the hoop 41 is fixed with an elastic pin 410. An elastic stopper 411 is fixed to an end of an inserting pole 410, and an insertion hole 412 for inserting the inserting pole 410 is provided at the other end of the hoop 41; the inserting pole 410 and the stopper 411 on the retaining hoop 41 are inserted into the inserting hole. After the hole 412, the hoop 41 can firmly hold the deep vein tube. Under the action of the third adhesive surface 51 of the first band 2, the first band 2 can be stuck on the patient's neck. After the projection 310 is inserted into the groove 31, the second fixing piece 4 is firmly fixed on the first fixing piece 3, and the position of the hoop 41 on the second fixing piece 4 is also fixed. Therefore, the deep vein cannula is placed The secondary secondary fixing device has the characteristics of firmly fixing the deep venous catheter.

As shown in Figures 1 to 6, in order to increase the reliability and lightness of the medical tape 1, the medical tape 1 is a pressure-sensitive medical tape 1. The pressure-sensitive medical tape 1 is a special type of tape. The pressure-sensitive adhesive, substrate, primer, back surface treatment agent and other components are used to make the pressure-sensitive medical tape 1 have pressure-sensitive adhesive properties. When used, light pressure will make the pressure-sensitive medical tape 1 and the The patient's neck is firmly stuck together; in order to increase the comfort of the device when fixing the deep venous catheter, the materials of the elastic bumps 310, the posts 410, and the stoppers 411 are made of silicone; the silicone material has a certain elasticity to meet Elasticity requirements, followed by a milder silicone material, non-toxic and non-irritating.

As shown in FIG. 1 to FIG. 6, in order to stably insert the elastic protrusion 310 into the groove 31, so that the first fixing piece 3 and the second fixing piece 4 are stably fixed together, the diameter of the elastic protrusion 310 is set. To be 0.5mm larger than the diameter of the groove 31, the elastic bump 310 is 0.5mm larger than the diameter of the groove 31, so that the elastic bump 310 is more stable after being inserted into the groove 31; in order to facilitate the insertion of the post 410 into the socket 412 , Set the diameter of the pin 410 to be 1.5 mm smaller than the diameter of the insertion hole 412, and set the diameter of the stopper 411 to be 0.8 mm larger than the diameter of the insertion hole 412; under the above size conditions, the stopper 411 can be deformed and penetrated The diameter of the insertion hole 412 and the insertion post 410 is 1.5 mm smaller than the diameter of the insertion hole 412, and the diameter of the stopper 411 is 0.8 mm larger than the diameter of the insertion hole 412. After the deformation is restored, it will not fall off from the insertion hole 412. In order to make the deep vein catheter more stable when the hoop 41 is clamped and the deep vein catheter is not compressed and deformed, the inner diameter of the hoop 41 is set to be the same as the diameter of the venous catheter The inner diameter of the hoop 41 is the same as the diameter of the venous catheter so that the venous catheter can be firmly fixed There is no deformation in the hoop 41; in order to strengthen the fixing, two second straps 5 are fixed on the second fixing piece 4, wherein the second strap 5 has a third adhesive surface 51, and the third adhesive surface 51 and the patient The neck is adhered, and the second adhesive surface 22 of the second strap 5 is used to assist the adhesion to the patient's neck, which can increase the reliability of the device for fixing the venous catheter; in order to increase the comfort of the patient with the practical medical tape 1 The shape of the medical tape 1 is square when it is unfolded. The side length of the medical tape 1 is 6cm, and the square medical tape 1 with a side length of 6cm is neither too large nor too small, which can meet the comfort of patients during use. .

As shown in FIG. 1 to FIG. 6, in order to facilitate medical staff to use tape to perform secondary fixation on the end of a deep vein catheter, the present invention also provides a method for using a secondary fixation device on the end of a deep vein catheter. The advantages of simplicity and convenience include the following steps:

S1: Paste the first adhesive surface 11 of the medical tape 1 on the neck catheter of the patient;

S2: insert the elastic projection 310 on the second fixing piece 4 into the groove 31 on the first fixing piece 3, and fix the second fixing piece 4 and the first fixing piece 3 together;

S3: Pull the second fixing piece 4 and the hoop 41 on the first strap 2 apart, wrap the hoop 41 around the venous catheter, and then insert the post 410 and the stopper 411 into the jack 412 until The stopper 411 is released from the insertion hole 412, and the insertion post 410 is inserted into the insertion hole 412;

S4: bonding the first hook surfaces 21 of the two first straps 2 to the first matte surface 12 of the medical tape 1;

S5: Adhere the third sticking surfaces 51 of the two second straps 5 on the second fixing sheet 4 to the neck of the patient.

As shown in Figures 1 to 6, in addition, because the hoop 41 is a silicone material, it is easy to accumulate more dust. In order to facilitate the operator to clean the hoop 41, the surface of the hoop 41 is also coated with a layer of anti-dust. After the anti-fouling coating is applied to the hoop 41, the dust will not easily accumulate on the hoop 41. Therefore, the present invention also provides a method for preparing an anti-fouling coating. The advantage of short process, the specific preparation method of antifouling coating is as follows:

Take the following raw materials for each component by weight for reserve: 18 parts of epoxy resin, 27 parts of polytetrafluoroethylene, 8 parts of polyvinyl chloride, 7 parts of polypropylene, 45 parts of acetone, 5 parts of disodium ethylenediamine tetraacetate, and carbonic acid 5 parts vinylidene ester, 5 parts fluoroethylene carbonate;

S1. Preparation of the first prefabricated solution: epoxy resin, polytetrafluoroethylene, polyvinyl chloride, and polypropylene are added to acetone to dissolve, and after stirring, the overall temperature is heated to 72 ° C, and the first prefabrication is obtained for 1h liquid;

S2. Preparation of a second pre-formed solution: the vinylidene carbonate and the fluoroethylene carbonate are mixed uniformly, and then heated to 62 ° C. and treated for 0.5 h to obtain a second pre-formed solution;

S3. Preparation of an antifouling coating solution: the first preformed liquid obtained in S1 and the second preformed liquid obtained in S2 are cooled to room temperature and mixed with each other, and disodium ethylenediamine tetraacetate is added, and the antifouling coating is obtained after stirring uniformly Solution

S4. Coating: immerse the hoop 41 in the antifouling coating solution obtained in S3, and then remove the hoop 41;

S5. Shade drying: Dry the hoop 41 obtained in S4 in a cool and ventilated place for 3 hours.

Example 2

The difference from Example 1 lies in the preparation of the antifouling coating on the surface of the hoop. The preparation method of the antifouling coating is as follows:

Take the following raw materials for each component by weight: 17 parts of epoxy resin, 25 parts of polytetrafluoroethylene, 9 parts of polyvinyl chloride, 8 parts of polypropylene, 48 parts of acetone, 5 parts of disodium ethylenediamine tetraacetate, and carbonic acid 5 parts vinylidene ester, 5 parts fluoroethylene carbonate;

S1. Preparation of the first prefabricated solution: epoxy resin, polytetrafluoroethylene, polyvinyl chloride, and polypropylene are added to acetone to dissolve, and after stirring, the overall temperature is heated to 72 ° C, and the first prefabrication is obtained to obtain the first prefabricated solution. liquid;

S2. Preparation of a second pre-formed solution: the vinylene carbonate and fluoroethylene carbonate are mixed uniformly, and then heated to 62 ° C., and then heat-treated for 0.5 h to obtain a second pre-formed solution;

S3. Preparation of antifouling coating solution: the first preformed liquid obtained in S1 and the second preformed liquid obtained in S2 are cooled to room temperature and mixed with each other; Solution

Example 3

Take the following raw materials for each component by weight: 13 parts of epoxy resin, 22 parts of polytetrafluoroethylene, 10 parts of polyvinyl chloride, 8 parts of polypropylene, 48 parts of acetone, 5 parts of disodium ethylenediamine tetraacetate, and carbonic acid 5 parts vinylidene ester, 5 parts fluoroethylene carbonate;

Example 4

The difference from Example 1 is that the surface of the hoop 41 is not coated with an antifouling coating.

The hoop 41 coated with the antifouling coating in Examples 1-3 was tested for surface hardness and peel strength. For ease of comparison, the data of all the examples are normalized based on the data of Example 1.

Table 1

	表面硬度Surface hardness	剥离强度Peel strength
实施例1Example 1	100％100%	100％100%
实施例2Example 2	101％101%	99％99%
实施例3Example 3	98％98%	99％99%

This specific embodiment is only an explanation of the present invention, and it is not a limitation on the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed. Within the scope of the requirements are protected by patent law.

Claims

A secondary fixing device for the end of a deep vein catheterization, including a medical tape (1), characterized in that the medical tape (1) has a first adhesive surface (11) and a first matte surface (12). The first adhesive surface (11) of the medical tape (1) is adhered to a patient's neck, and the first matte surface (12) of the medical tape (1) is attached with two first straps (2), A first hook surface (21) and a second adhesive surface (22) are provided on the same surface of the first strap (2), and the first hook surface (21) and the medical tape of the first strap (2) The first matte surface (12) of (1) is adhered to each other, the second adhesive surface (22) of the first strap (2) is adhered to the patient's neck, and the medical tape (1) is also fixed to A first fixing piece (3), the first fixing piece (3) is provided with two circular grooves (31), and the two grooves (31) are inserted with elasticity having a circular cross section. A protruding block (310), the two elastic protruding blocks (310) are both fixed on a second fixing piece (4), and the second fixing piece (4) and the first strap (2) are fixed with a holding A hoop (41), one end of the hoop (41) is fixed with an elastic plug (410), and an end of the first plug (410) is fixed with an elastic stop (411), so The other end of the hoop (41) defines a receptacle (412) for the stake (410) is inserted.
The secondary fixation device for the end of a deep vein catheterization according to claim 1, wherein the medical tape (1) is a pressure-sensitive medical tape (1).
The secondary fixing device for a deep vein catheterization terminal according to claim 1, wherein the elastic bumps (310), the insertion posts (410), and the stoppers (411) are made of silicone.
The secondary fixing device for a deep vein catheter end according to claim 1, wherein the diameter of the elastic bump (310) is larger than the diameter of the groove (31) by 0.4-0.6 mm.
The secondary fixing device for a deep venous catheter end according to claim 1, wherein the diameter of the insertion post (410) is 1-2 mm smaller than the diameter of the insertion hole (412), and the stopper The diameter of (411) is 0.6-1 mm larger than the diameter of the insertion hole (412).
The secondary fixing device for a deep vein catheterization terminal according to claim 1, wherein the inner diameter of the hoop (41) is the same as the diameter of the vein catheterization.
The secondary fixing device for the end of a deep vein catheterization according to claim 1, characterized in that: the second fixing piece (4) is fixed with two second straps (5), and the second The strap (5) has a third adhesive surface (51) which is adhered to the neck of the patient.
The secondary fixing device for the end of a deep venous catheter according to claim 1, wherein the shape of the medical tape (1) is square when unfolded, and the side of the medical tape (1) is 5-6cm.
The method for using a secondary fixing device at the end of a deep vein catheterization according to claim 1, characterized in that it specifically comprises the following steps:

S1: Paste the first adhesive surface (11) of the medical tape (1) on the neck catheter of the patient;

S2: Insert the elastic projection (310) on the second fixing piece (4) into the groove (31) on the first fixing piece (3), and push the second fixing piece (4) and the first fixing piece (3) fixed together;

S3: Open the opening of the hoop (41) on the second fixing piece (4) and the first strap (2), wrap the hoop (41) around the venous catheter, and then insert the post (410) and the stopper The block (411) is inserted into the jack (412) until the stopper (411) is released from the jack (412), and the post (410) enters the jack (412);

S4: bonding the first hook surfaces (21) of the two first straps (2) to the first matte surface (12) of the medical tape (1);

S5: Adhere the third adhesive faces (51) of the two second straps (5) on the second fixing sheet (4) to the neck of the patient.