CN209378186U - A kind of trocar Assembly of hemodialysis blowout prevention blood - Google Patents

Abstract

The utility model discloses a kind of trocar Assemblies of hemodialysis blowout prevention blood of needle tubing protection technology field, including pullover, the lower thread of the pullover is connected with intermediate tube, the bottom of the intermediate tube is connected with adjusting sleeve pipe, fixing sleeve is connected to the first needle tubing among the inner cavity of the intermediate tube, the upper end of first needle tubing is plugged on the bottom of the pullover, and it is connected with each other with the top of the pullover, the bottom of the adjusting sleeve pipe is connected with casing head, the utility model passes through ball valve, mutual cooperation between first needle tubing and the second needle tubing, it can be in order to when carrying out hemodialysis, by closing ball valve, so as to effectively prevent blood samples of patients from ejecting by pullover, by the cooperation between two groups of adjusting sleeve pipes and adjust head, cooperation between card silk and ball valve, can be easy to implement the disassembly to the first needle tubing and the second needle tubing and Installment work carries out cleaning and disinfection to needle tubing and ball valve so as to be convenient for after the completion of device use.

Description

A kind of trocar Assembly of hemodialysis blowout prevention blood

Technical field

The utility model relates to needle tubing protection technology field, the trocar Assembly of specially a kind of hemodialysis blowout prevention blood.

Background technique

Clinically, medical trocar is a kind of widely used medical instrument.It is with common disposable venous infusion needle Example, is mainly made of helmet, steel needle, needle stand, the needle wing and connecting tube.

For existing trocar Assembly when carrying out hemodialysis work, the mode for being easy to appear spray blood or backflow phenomenon routine is logical It is often to carry out blowout prevention using the external tool of fluid stopping fixture etc, is inconvenient, for another example Chinese Patent Application No. is A kind of safety-type medical trocar with pumpback guide structure of CN201610794529.4, which is characterized in that the trochar It include: catheter block, inlying catheter, needle stand and puncture needle.Needle stand is fixed in puncture needle one end, and puncture needle and needle stand are mutual The hollow structure of connection；Wherein, trochar includes puncture state and indwelling state；Under puncture state, puncture needle, which is seated in, to be stayed It sets in conduit；And under indwelling state, puncture needle is seated in catheter block；Also, trochar is by the pumpback to needle stand, from wearing Thorn-like state is changed into indwelling state；Trochar further includes pumpback component, and the needle stand for drive carries out pull, so that casing Needle is changed into indwelling state from puncture state；And the inner surface and the outer surface of catheter block is equipped with pumpback guide structure, for drawing It leads back to pumping component and needle stand guides pumpback；Although blowout prevention may be implemented in such mode, but be not easy to realize to valve body Work is disassembled and installed, is not easy to realize the cleaning and sterilizing work to needle tubing, can not realize the reuse to device well.

Based on this, the utility model devises a kind of trocar Assembly of hemodialysis blowout prevention blood, to solve the above problems.

Utility model content

The purpose of this utility model is to provide a kind of hemodialysis trocar Assemblies of blowout prevention blood, to solve above-mentioned background skill The existing trocar Assembly proposed in art is easy to appear the mode of spray blood or backflow phenomenon routine when carrying out hemodialysis work Blowout prevention usually is carried out using the external tool of fluid stopping fixture etc, is inconvenient, is not easy to realize the disassembly and peace to valve body Work is filled, the problem of realizing the cleaning and sterilizing work to needle tubing, can not realizing the reuse to device well is not easy to.

To achieve the above object, the utility model provides the following technical solutions: a kind of trochar dress of hemodialysis blowout prevention blood It sets, including pullover, the lower thread of the pullover is connected with intermediate tube, and the bottom of the intermediate tube is connected with adjusting sleeve pipe, institute It states fixing sleeve among the inner cavity of intermediate tube and is connected to the first needle tubing, the upper end of first needle tubing is plugged on the bottom of the pullover, And be connected with each other with the top of the pullover, the bottom of the adjusting sleeve pipe is connected with casing head, and the bottom of described sleeve pipe head is passed through Interspersed to be connected to the second needle tubing, the side of the adjusting sleeve pipe is provided with adjusting head, adjusts adjusting set described in first side close to described It is provided with ball valve in the inner cavity of pipe, is plugged with card silk positioned at the other end of the ball valve, the adjusting sleeve pipe distinguishes two groups up and down, And be mutually inserted between the adjusting sleeve pipe, the ball valve is located in the inner cavity of adjusting sleeve pipe described in one group of top.

Preferably, the top outer wall of the intermediate tube is fixed with pressing plate, and the outer surface of the pressing plate is provided with anti- Sliding protrusion.

Preferably, the side surface of adjusting sleeve pipe described in one group of bottom is provided with annular groove, and the roof of the annular groove passes through fixation The bottom of adjusting sleeve pipe described in one group of screw and top is mutually fixed.

Preferably, the bottom end of adjusting sleeve pipe described in one group of the top and top of adjusting sleeve pipe described in one group of bottom is provided with Arc groove body, outer surface clearance seal of the two sides up and down of the ball valve with the arc groove body, arc groove body described in two groups Centre of surface position be provided with clamp, the lower end of first needle tubing is in contact with the upper surface of clamp described in one group, institute The top for stating the second needle tubing is in contact with the lower surface of clamp described in another group, and the outer circle of first needle tubing and the second needle tubing is straight Diameter is all larger than the interior circular diameter of the clamp, and the side surface of the ball valve is communicated with water conservancy diversion groove body, the both ends of the water conservancy diversion groove body It can match respectively with the clamp and be connected to.

Preferably, the card silk is screwed on the side wall far from adjusting sleeve pipe described in the first side of adjusting, the adjusting It is fixed with bayonet lock among the end of head, the left and right sides of the ball valve offers circular socket and rectangular slot, the card respectively Pin activity is plugged in the inner wall of the circular socket.

Preferably, the side for adjusting head is fixedly connected with rotating bar, and the other end of the rotating bar is fixed with rectangular The other end matching of card column, the rectangular card column is buckled in the inner wall of the rectangular slot, is located at the rectangular card column and tune The outer surface movable sleeve of the rotating bar is connected to loop bar between section header, and one end of the loop bar is provided with hexagonal and adjusts head, described The outer surface of loop bar is provided with flank, the side that the outer surface of the loop bar passes through adjusting sleeve pipe described in one group of flank and top Wall is threadedly coupled.

Compared with prior art, the utility model has the beneficial effects that the utility model passes through ball valve, the first needle tubing and the Mutual cooperation between two needle tubings, can be in order to when carrying out hemodialysis, by closing ball valve, so as to effectively prevent patient Blood is ejected by pullover, by the cooperation between two groups of adjusting sleeve pipes and adjusts matching between head, Ka Si and ball valve It closes, the disassembly and installation work to the first needle tubing and the second needle tubing can be easy to implement, so as to be convenient for having used in device Cheng Hou carries out cleaning and disinfection to needle tubing and ball valve.

Detailed description of the invention

In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings Other attached drawings.

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is A-A partial sectional view in the utility model Fig. 1；

Fig. 3 is the utility model ball valve right side view；

Fig. 4 is the utility model ball valve left side view；

Fig. 5 is the utility model loop bar cross-sectional view.

In attached drawing, parts list represented by the reference numerals are as follows:

1- pullover, 2- intermediate tube, 3- adjusting sleeve pipe, the first needle tubing of 4-, 5- casing head, the second needle tubing of 6-, 7- adjust head, 8- Ball valve, 9- card silk, 10- pressing plate, 11- fixed screw, 12- clamp, 13- water conservancy diversion groove body, 14- circular socket, 15- is rectangular to be inserted Slot, 16- rotating bar, the rectangular card column of 17-, 18- loop bar, 19- hexagonal adjust head, 20- annular groove.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts All other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-5 is please referred to, the utility model provides a kind of technical solution: a kind of trocar Assembly of hemodialysis blowout prevention blood, Including pullover 1, the lower thread of pullover 1 is connected with intermediate tube 2, and the bottom of intermediate tube 2 is connected with adjusting sleeve pipe 3, intermediate tube 2 Fixing sleeve is connected to the first needle tubing 4 among inner cavity, and the upper end of the first needle tubing 4 is plugged on the bottom of pullover 1, and the top with pullover 1 It is connected with each other, the bottom of adjusting sleeve pipe 3 is connected with casing head 5, and the bottom of casing head 5, which is run through, is plugged with the second needle tubing 6, adjusting set The side of pipe 3, which is provided with, adjusts head 7, is provided with ball valve 8 in the inner cavity for adjusting 7 side adjusting sleeve pipe 3 of head, is located at ball valve 8 The other end be plugged with card silk 9, up and down two groups respectively of adjusting sleeve pipe 3, and be mutually inserted between adjusting sleeve pipe 3, ball valve 8 is located at top In the inner cavity of the one group of adjusting sleeve pipe 3 in portion.

Wherein, the top outer wall of intermediate tube 2 is fixed with pressing plate 10, and the outer surface of pressing plate 10 is provided with anti-skidding convex It rises, medical staff can be by holding pressing plate 10, convenient for carrying out hemodialysis use to patient；The side of the one group of adjusting sleeve pipe 3 in bottom Surface is provided with annular groove 20, and the roof of annular groove 20 is mutually fixed by the bottom of one group of adjusting sleeve pipe 3 of fixed screw 11 and top； The bottom end of the one group of adjusting sleeve pipe 3 in top and top of one group of bottom adjusting sleeve pipe 3 is provided with arc groove body, ball valve 8 up and down With the outer surface clearance seal of arc groove body, the centre of surface position of two groups of arc groove bodies is provided with clamp 12 for two sides, and The lower end of one needle tubing 4 is in contact with the upper surface of one group of clamp 12, the top of the second needle tubing 6 and the lower surface of another group of clamp 12 It is in contact, the outside diameter of the first needle tubing 4 and the second needle tubing 6 is all larger than the interior circular diameter of clamp 12, and the side surface of ball valve 8 connects It is connected with water conservancy diversion groove body 13, the both ends of water conservancy diversion groove body 13 can match respectively with clamp 12 to be connected to, can be by utilizing the first needle tubing 4 It is buckled on clamp 12, is prevented when carrying out hemodialysis with the end wall of the second needle tubing 6, the top of the second needle tubing 6 and the first needle tubing 4 Bottom lacks support, shakes, to influence the use of ball valve 8；Card silk 9 is screwed onto far from adjusting 7 side adjusting sleeve pipe 3 of head Side wall on, adjust and be fixed with bayonet lock among the end of head 7, the left and right sides of ball valve 8 offers circular socket 14 and side respectively Shape slot 15, bayonet lock activity are plugged in the inner wall of circular socket 14, and ball valve is fixed using bayonet lock by card silk 9, can In order to realize that ball valve 8 realizes the axial direction rotation in card silk 9, convenient for the opening and closing work of regulation ball valve 8；The side for adjusting head 7 is solid Surely it is connected with rotating bar 16, the other end of rotating bar 16 is fixed with rectangular card column 17, and the other end of rectangular card column 17 matches buckle In the inner wall of rectangular slot 15, set is connected to positioned at rectangular card column 17 and the outer surface movable sleeve for adjusting rotating bar 16 between head 7 Bar 18, one end of loop bar 18 are provided with hexagonal and adjust head 19, and the outer surface of loop bar 18 is provided with flank, the appearance of loop bar 18 Face is connect by flank with the sidewall thread of the one group of adjusting sleeve pipe 3 in top, can use spanner by adjusting head using hexagonal 19 are screwed loop bar 18 and adjusting sleeve pipe 3, while rectangular card column 7 being inserted into rectangular slot 15, convenient for pulling Adjust the opening and closing work of 7 regulation ball valve 8 of head.

One concrete application of the present embodiment are as follows: when using the present apparatus, first turn adjusting head 7 and pass through 16 band of rotating bar It moves rectangular card column 17 to rotate, realizes that ball valve 8 rotates, so that water conservancy diversion groove body 13 is separated with 12 phase of clamp, then by holding intermediate tube 2, finger presses in pressing plate 10, carries out hemodialysis work to patient using the second needle tubing 6, while after the completion of hemodialysis, utilizing Setting let the acupuncture needle remain at a certain point, syringe needle is inserted on pullover 1, adjusts head 7 by turning round again, water conservancy diversion groove body 13 and clamp 12 is driven to coincide, from And realize and be interconnected between the second needle tubing 6, water conservancy diversion groove body 13 and the first needle tubing 4, convenient for setting the infusion work that let the acupuncture needle remain at a certain point, and After the completion of this device use, separation can also be realized to the first needle tubing 4 and the second needle tubing 6, together by backing out fixed screw 11 When be buckled in hexagonal by backing out card silk 9 and being pulled using spanner and adjust on head 19, disassembly to loop bar 18 is realized, to take out ball valve 8, cleaning and disinfection are carried out to the first needle tubing 4, ball valve 8 and the second needle tubing 6.

In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples In can be combined in any suitable manner.

The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this Utility model.The utility model is limited only by the claims and their full scope and equivalents.

Claims (6)

1. a kind of hemodialysis trocar Assembly of blowout prevention blood, including pullover (1), it is characterised in that: the lower end spiral shell of the pullover (1) Line is connected with intermediate tube (2), and the bottom of the intermediate tube (2) is connected with adjusting sleeve pipe (3), in the inner cavity of the intermediate tube (2) Between fixing sleeve be connected to the first needle tubing (4), the upper end of first needle tubing (4) is plugged on the bottom of the pullover (1), and with it is described The top of pullover (1) is connected with each other, and the bottom of the adjusting sleeve pipe (3) is connected with casing head (5), the bottom of described sleeve pipe head (5) Portion is through being plugged with the second needle tubing (6), and the side of the adjusting sleeve pipe (3), which is provided with, adjusts head (7), close to the adjusting head (7) ball valve (8) are provided in the inner cavity of adjusting sleeve pipe described in side (3), the other end for being located at the ball valve (8) is plugged with card silk (9), two groups up and down of adjusting sleeve pipe (3) difference, and be mutually inserted between the adjusting sleeve pipe (3), the ball valve (8) is located at In the inner cavity of adjusting sleeve pipe (3) described in one group of top.

2. a kind of trocar Assembly of hemodialysis blowout prevention blood according to claim 1, it is characterised in that: the intermediate tube (2) top outer wall is fixed with pressing plate (10), and the outer surface of the pressing plate (10) is provided with anti-skid bulge.

3. a kind of trocar Assembly of hemodialysis blowout prevention blood according to claim 1, it is characterised in that: described in one group of bottom The side surface of adjusting sleeve pipe (3) is provided with annular groove (20), and the roof of the annular groove (20) passes through fixed screw (11) and top one The bottom of the group adjusting sleeve pipe (3) is mutually fixed.

4. a kind of trocar Assembly of hemodialysis blowout prevention blood according to claim 1, it is characterised in that: described in one group of bottom The bottom end of adjusting sleeve pipe (3) described in one group of the top and top of adjusting sleeve pipe (3) is provided with arc groove body, the ball valve (8) Outer surface clearance seal of the two sides up and down with the arc groove body, the centre of surface position of arc groove body described in two groups is all provided with It is equipped with clamp (12), the lower end of first needle tubing (4) is in contact with the upper surface of clamp (12) described in one group, second needle The top of pipe (6) is in contact with the lower surface of clamp (12) described in another group, first needle tubing (4) and the second needle tubing (6) Outside diameter is all larger than the interior circular diameter of the clamp (12), and the side surface of the ball valve (8) is communicated with water conservancy diversion groove body (13), institute The both ends for stating water conservancy diversion groove body (13) can match respectively with the clamp (12) to be connected to.

5. a kind of trocar Assembly of hemodialysis blowout prevention blood according to claim 1, it is characterised in that: the card silk (9) It is screwed on the side wall far from adjusting sleeve pipe (3) described in described adjusting head (7) side, it is solid among the end for adjusting head (7) Surely there is bayonet lock, the left and right sides of the ball valve (8) offers circular socket (14) and rectangular slot (15) respectively, and the bayonet lock is living It is dynamic to be plugged in the inner wall of the circular socket (14).

6. a kind of trocar Assembly of hemodialysis blowout prevention blood according to claim 5, it is characterised in that: the adjusting head (7) side is fixedly connected with rotating bar (16), and the other end of the rotating bar (16) is fixed with rectangular card column (17), the side The other end matching of shape card column (17) is buckled in the inner wall of the rectangular slot (15), is located at the rectangular card column (17) and is adjusted The outer surface movable sleeve of the rotating bar (16) is connected to loop bar (18) between section header (7), and one end of the loop bar (18) is provided with Hexagonal adjusts head (19), and the outer surface of the loop bar (18) is provided with flank, and the outer surface of the loop bar (18) passes through screw thread The sidewall thread of adjusting sleeve pipe (3) described in one group of face and top is connect.