CN111012430A - Special syringe of flexible push rod type chain hemostasis device - Google Patents

Abstract

The invention discloses a special injector for a telescopic push rod type chain type hemostasis device, which comprises an injection tube for storing the chain type hemostasis device and a pushing mechanism for pushing the injection tube to move; a handle which is vertical to the injection tube and extends outwards is fixed at the tail part of the injection tube; the propelling mechanism comprises a lock catch piece sleeved on the outer side wall of the tail of the injection tube, an upper cover plate, a lower cover plate, a telescopic push rod and a tail fixing piece, wherein the upper cover plate and the lower cover plate are symmetrically arranged, the telescopic push rod is arranged in an accommodating space formed by the upper cover plate and the lower cover plate, and the tail fixing piece is fixedly connected with the telescopic push rod, the upper cover plate and the lower cover plate; one end of the telescopic push rod penetrates into the injection tube and is used for pushing the chain type hemostasis device, and the other end of the telescopic push rod is connected with the tail fixing piece; one end of the upper cover plate and one end of the lower cover plate symmetrically penetrate into the lock catch piece to fix the positions of the upper cover plate, the lower cover plate and the lock catch piece, and the other end of the upper cover plate and the other end of the lower cover plate are connected with the tail fixing piece; after the telescopic push rod is contracted, the injection tube penetrates through the lock catch piece and then is contained in the containing space between the upper cover plate and the lower cover plate towards the direction of the telescopic push rod.

Description

Special syringe of flexible push rod type chain hemostasis device

Technical Field

The invention relates to a special syringe for a telescopic push rod type chain type hemostasis device, which is applied to special occasions such as battlefield first aid and the like and belongs to the technical field of medical equipment.

Background

In battlefield first aid, hemostasis is a crucial link, and according to related data, more than 90% of death cases caused by incapability of controlling a large amount of blood loss after injury account for recoverable death cases, particularly after gunshot injury, hemostasis must be timely effective, otherwise, death due to blood loss is easy to occur. The existing hemostatic medical apparatus mainly comprises gauze and a tourniquet, when the gauze is used for hemostasis, the gauze needs to be plugged into a wound which emits blood, but the wound formed by a bullet is very deep, and the hemostasis cannot be realized by using a gauze plugging method; although hemostasis can be completed quickly by using the tourniquet, after the tourniquet is used, for a wounded person, ischemic injury is easy to occur to a far-end tissue, tissue necrosis is caused, risks such as anaerobic infection and the like can cause amputation and even endanger life. Therefore, gauze and tourniquets are not the most rapid, effective and safe means of hemostasis for the injured person who has been gunshot in the battlefield.

The hemorrhage that the rifle wounded caused mainly appears in human inside, and the hemorrhage position blood pressure is high, the blood volume is many, and the hemorrhage that the rifle wounded caused can't be effectively blocked up fast to current medical instrument. In order to save lives, adopt neotype chain hemostasis device to stanch and can reach the stagnant water effect of ideal, chain hemostasis device is made by the hemostatic material of establishing ties, can hinder the wound through the rifle and get into the human direct position of bleeding, directly to bleeding position release hemostatic material, hemostatic material runs into the blood inflation after oppression shutoff and stops up bleeding, on the other hand, chain hemostasis device also conveniently takes out and clears up when follow-up wound treatment. However, the gun-wound is deep and the wound surface is irregular, so that the operation is inconvenient in the use process of the chain type hemostatic device, and the hemostatic material at the front end blocks the surface of the wound after rapidly expanding in the presence of blood, so that the hemostatic material cannot directly reach the bleeding position inside the wound, and the problems of incomplete hemostasis, poor hemostasis effect and the like occur; on the other hand, the chain type hemostatic device is mainly applied to a battlefield, and the protection and carrying mode has great influence on the use of the chain type hemostatic device.

Therefore, need urgently for one kind can with chain hemostasis device phase-match and convenient operation easily carried syringe, can be fast accurate carry the chain hemostasis device to the position of bleeding, reach the hemostasis effect of ideal, make things convenient for medical personnel to carry and store simultaneously.

Disclosure of Invention

In order to solve the technical problems, the invention provides a special syringe for a telescopic push rod type chain type hemostasis device, which can be matched with the chain type hemostasis device, protects the chain type hemostasis device in a telescopic mode and is convenient to carry.

The technical scheme of the invention is as follows:

a special injector for a telescopic push rod type chain type hemostasis device comprises an injection tube for storing the chain type hemostasis device and a pushing mechanism for pushing the injection tube to move; a handle which is vertical to the injection tube and extends outwards is fixed at the tail part of the injection tube; the propelling mechanism comprises a lock catch piece sleeved on the outer side wall of the tail of the injection tube, an upper cover plate, a lower cover plate, a telescopic push rod and a tail fixing piece, wherein the upper cover plate and the lower cover plate are symmetrically arranged, the telescopic push rod is arranged in an accommodating space formed by the upper cover plate and the lower cover plate, and the tail fixing piece is fixedly connected with the telescopic push rod, the upper cover plate and the lower cover plate; one end of the telescopic push rod penetrates into the injection tube and is used for pushing the chain type hemostasis device, and the other end of the telescopic push rod is connected with the tail fixing piece; one ends of the upper cover plate and the lower cover plate symmetrically penetrate into the lock catch piece to fix the positions of the upper cover plate, the lower cover plate and the lock catch piece, and the other ends of the upper cover plate and the lower cover plate are connected with the tail fixing piece; the telescopic push rod contracts, and the injection tube penetrates through the locking piece and then is contained in the containing space between the upper cover plate and the lower cover plate towards the direction of the telescopic push rod.

Furthermore, the telescopic push rod comprises a plurality of connecting rods in sliding connection, and the diameters of the telescopic push rod are smaller than that of the injection tube; the diameter of each connecting rod from the locking piece to the tail fixing piece is reduced in sequence, and the front connecting rod and the rear connecting rod are sleeved with each other; the outer side wall of the connecting end of each connecting rod and the front connecting rod protrudes to form a first limiting block which exceeds the outer surface, and the inner side wall of the connecting end of each connecting rod and the rear connecting rod protrudes to form a second limiting block which exceeds the inner surface; the second limiting block of the connecting rod positioned in front is mutually clamped with the first limiting block of the connecting rod positioned in rear, and then the positions of the two connecting rods are fixed.

Furthermore, the outer side wall of the connecting rod is further provided with a blocking block, the blocking block is located behind the first limiting block, and the blocking block and the first limiting block are fixed by clamping the second limiting block.

Furthermore, single-side holes are formed in the side walls of the joints of the injection tube, the lock catch piece and the connecting rod penetrating into the injection tube, and one end of a fixing pin sequentially penetrates through the single-side holes in the lock catch piece, the injection tube and the connecting rod from outside to inside so as to lock the positions of the lock catch piece, the injection tube and the connecting rod; and a pull ring is arranged on the fixed pin.

Furthermore, two embedding holes are symmetrically formed in the lock catch piece and are used for the upper cover plate and the lower cover plate to penetrate and fix respectively, and a through hole for an injection tube to penetrate is formed between the two embedding holes.

Furthermore, the outer side walls of the end heads of the upper cover plate and the lower cover plate penetrating into the embedding holes are respectively provided with a convex block protruding out of the surfaces of the upper cover plate and the lower cover plate; two parallel slits are arranged at the top end of the embedding hole connected with the upper cover plate and the bottom end of the embedding hole connected with the lower cover plate, and a limiting part is formed between the two slits; the limiting part is respectively sunken with the inner side wall connected with the upper cover plate and the lower cover plate to form a clamping groove for clamping the two convex blocks, and the locking fastener is respectively fixed with the upper cover plate and the lower cover plate through the matching of the convex blocks and the clamping grooves.

Further, the tail fixing piece comprises an inserting disc and a fixing table which are fixedly connected; and the inserting disc is provided with a lock hole for the upper cover plate, the lower cover plate and the connecting rod to be inserted and fixed.

Furthermore, a protective cover is screwed on the head of the injection tube; and a layer of dustproof film is arranged between the inner side of the head part of the protective cover and the head part of the injection tube.

Furthermore, a plurality of anti-slip grooves for increasing friction force are arranged on the outer surfaces of the upper cover plate and the lower cover plate at intervals, and ripples for increasing friction force are arranged on the surfaces of the handles.

The invention has the following beneficial effects:

1. the invention is used with a chain type hemostasis device, when in use, the injection tube is partially inserted into a wound caused by a bullet, after the fixing pin is pulled out and the movable cavity is held by hands to buckle the handle arranged at the tail part of the injection tube, the injection tube is pulled along the direction of the telescopic push rod, at the moment, because the telescopic push rod in the propelling mechanism is not moved, during the pulling process of the injection tube, the chain type hemostatic device stored in the injection tube can be left in the bleeding part in the human body under the extrusion of the telescopic push rod, the chain type hemostatic device can realize the filling hemostasis mode from the inside of the wound to the surface of the wound, overcomes the defect that the chain type hemostatic device expands on the surface of the wound when meeting blood to block the surface of the wound when being filled from the surface of the wound to the inside of the wound in the prior art, so that the chain type hemostatic device can not be deeply filled to the internal bleeding position to cause the problems of incomplete hemostasis, poor hemostatic effect and the like.

2. The telescopic push rod arranged in the propelling mechanism in the special injector provided by the invention is composed of a plurality of connecting rods in sliding connection, so that the telescopic storage of the special injector is realized; when not needing to use, insert the injection syringe with the fixed pin, in the unilateral hole of hasp spare and connecting rod, with three's rigidity, then the flexible push rod of direction pulling towards the afterbody mounting, make the connecting rod in the flexible push rod nest each other and realize the shrink, drive the injection syringe in the shrink of connecting rod and withdraw to the original accommodation space between the upper cover plate and the lower cover plate of placing flexible push rod, the shrink of realizing special syringe is deposited, avoid the injection syringe of special syringe to expose outside for a long time, receive the pollution, reduce area occupied simultaneously, conveniently deposit and carry.

3. The injector provided by the invention is convenient to operate, even an injured person can operate by one hand, the chained hemostatic device can be rapidly input into a wound, and meanwhile, wound infection caused by complicated hemostatic operation can be avoided.

4. The head of the injection tube is provided with the protective cover and the dustproof thin film, so that dust is prevented from entering the injection tube to pollute the chain type hemostasis device, and meanwhile, the whole section of the dustproof thin film is provided with the cross-shaped notch, so that the chain type hemostasis device stored in the injection tube can be conveniently and quickly pushed out.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic illustration of an explosive structure according to the present invention;

FIG. 3 is a front cross-sectional view of the present invention;

FIG. 4 is an enlarged schematic view at A in FIG. 3;

fig. 5 is a cross-sectional view of the latch of the present invention.

The reference numbers in the figures denote:

1. an injection tube; 11. a grip; 12. a protective cover; 13. a dust-proof film; 2. a propulsion mechanism; 21. a fastener; 211. a fitting hole; 212. a through hole; 213. a limiting component; 22. an upper cover plate; 23. a lower cover plate; 24. a telescopic push rod; 25. a tail fixture; 251. inserting a plate; 252. a fixed table; 253. a lock hole; 26. a connecting rod; 261. a first stopper; 262. a second limiting block; 27. a single-side hole; 28. a bump; 29. a card slot; 3. a fixing pin; 31. a pull ring; 4. and (4) an anti-slip groove.

Detailed Description

The invention is described in detail below with reference to the figures and the specific embodiments.

Referring to fig. 1 to 5, a special syringe for a telescopic push rod type chain type hemostatic device includes a syringe 1 for storing the chain type hemostatic device and a propelling mechanism 2 for propelling the syringe 1 to move; the chain type hemostatic device is a hemostatic chain formed by connecting hemostatic materials which can expand when meeting blood in series, the adjacent hemostatic materials on the hemostatic chain can be extruded and contracted to be stored in the injection tube 1, and the hemostatic chain is pushed into a wound to perform hemostasis when in use; a grip 11 which is perpendicular to the injection tube 1 and extends outwards is fixed at the tail of the injection tube 1, and the grip 11 is convenient for an operator to pull the injection tube 1; the propulsion mechanism 2 comprises a lock catch piece 21 sleeved on the outer side wall of the tail part of the injection tube 1, an upper cover plate 22 and a lower cover plate 23 which are symmetrically arranged, a telescopic push rod 24 arranged in an accommodating space formed by the upper cover plate 21 and the lower cover plate 23, and a tail part fixing piece 25 fixedly connecting the telescopic push rod 24 with the upper cover plate 22 and the lower cover plate 23; the upper cover plate 22 and the lower cover plate 23 form a space capable of accommodating the telescopic push rod 24 and the injection tube 1 respectively in a surrounding way, the upper cover plate 22 and the lower cover plate 23 are equal in length, the cross sections of the upper cover plate 22 and the lower cover plate 23 can be in any shape, and the cross sections of the upper cover plate 22 and the lower cover plate 23 are triangles with arc edges; one end of the telescopic push rod 24 penetrates into the injection tube 1 to push the chain type hemostasis device, and the other end is connected with the tail fixing piece 25; one ends of the upper cover plate 22 and the lower cover plate 23 symmetrically penetrate into the lock catch piece 21 to fix the positions of the upper cover plate 22, the lower cover plate 23 and the lock catch piece 21, and the other ends are connected with the tail fixing piece 25; the tail fixing piece 25 comprises a plug plate 251 and a fixing table 252 which are fixedly connected; the inserting disc 251 is provided with a lock hole 253 for inserting and fixing the upper cover plate 22, the lower cover plate 23 and the connecting rod 26, and the upper cover plate 22 and the lower cover plate 23 can sequentially pass through the inserting disc 251 and be locked with the upper cover plate 22 or the lower cover plate 23 again through fastening bolts after being inserted into the lock hole 253; the upper cover plate 22 and the lower cover plate 23 play a role of connecting and fixing the injection tube 1 and the tail fixing piece 25, and can support the structure of the whole special injector; the telescopic push rod 24 contracts to drive the injection tube 1 to be retracted through the lock catch piece 21 and then to be accommodated in the accommodating space between the upper cover plate 22 and the lower cover plate 23 towards the direction of the telescopic push rod 24, so that the injection tube 1 is contracted, the telescopic push rod 24 can be any rod connecting structure capable of realizing telescopic action, and the injection tube 1 and the propelling mechanism 2 are both made of sanitary-grade polypropylene materials.

Further, the telescopic push rod 24 comprises a plurality of connecting rods 26 which are connected in a sliding manner, and the diameters of the telescopic push rod 24 are smaller than that of the injection tube 1; the diameter of each connecting rod 26 from the locking piece 21 to the tail fixing piece 25 is reduced in sequence, and the front and rear connecting rods 26 are sleeved with each other to realize extension; the outer side wall of the connecting end of each connecting rod 26 and the front connecting rod 26 protrudes to form a first limit block 261 which exceeds the outer surface, and the inner side wall of the connecting end of each connecting rod 26 and the rear connecting rod 26 protrudes to form a second limit block 262 which exceeds the inner surface; the second stopper 262 of the front link 26 and the first stopper 261 of the rear link 26 are engaged with each other to fix the positions of the two front and rear links 26; a blocking piece 263 is further arranged on the outer side wall of the connecting rod 26, the blocking piece 263 is located behind the first limiting piece 261, the second limiting piece 262 is clamped between the blocking piece 263 and the first limiting piece 261 for fixation, and meanwhile, when the telescopic push rod 24 needs to be retracted, the blocking piece 263 is pressed, so that the second limiting piece 262 of the connecting rod 26 located in front is separated from a space between the first limiting piece 261 and the blocking piece 263, and the telescopic push rod 24 is conveniently retracted; the first stopper 261 and the stopper 263 may not be provided on the outer sidewall of the link 26 connected to the syringe 1.

Furthermore, thesyringe 1, the lockingelement 21 and the side wall of the joint of the connectingrod 26 penetrating into thesyringe 1 are all provided with a single-side hole 27, and one end of a fixingpin 3 sequentially penetrates through the single-side holes 27 on the lockingelement 21, thesyringe 1 and the connectingrod 26 from outside to inside so as to lock the positions of the lockingelement 21, thesyringe 1 and the connectingrod 26; the fixingpin 3 is provided with apull ring 31, and the fixingpin 3 is equivalent to the safety of a special syringe and is used for locking the positions of theinjection tube 1, thetelescopic push rod 24 and the lockingfastener 21 when the chain type hemostatic device is injected, so that thetelescopic push rod 24 is prevented from penetrating into the injection tube to push out the chain type hemostatic device.

Furthermore, two embeddingholes 211 are symmetrically arranged on thelock catch piece 21 for theupper cover plate 22 and thelower cover plate 23 to penetrate and fix, and a throughhole 212 for theinjection tube 1 to pass through is arranged between the two embeddingholes 211; the shape of thefitting hole 211 is the same as the cross-sectional shape of theupper cover plate 22 and thelower cover plate 23, so that theupper cover plate 22 and thelower cover plate 23 can be conveniently penetrated and fixed.

Furthermore, the outer side walls of the end heads of the upper cover plate 22 and the lower cover plate 23 penetrating into the embedding holes 211 are respectively provided with a convex block 28 which protrudes out of the surfaces of the upper cover plate 22 and the lower cover plate 23; two parallel slits are arranged at the top end of the embedding hole 211 connected with the upper cover plate 22 and the bottom end of the embedding hole 211 connected with the lower cover plate 23, and a limiting part 213 is formed between the two slits; the inner side walls of the limiting part 213 connected with the upper cover plate 22 and the lower cover plate 23 are respectively recessed to form a clamping groove 29 for clamping the two convex blocks 28, and the convex blocks 28 are matched with the clamping grooves 29 to fix the locking fastener 21 with the upper cover plate 22 and the lower cover plate 22 respectively; it should be noted that there are many fixing ways of the locking element 21 and the upper cover plate 22 and the lower cover plate 23, and any way and device can be used as long as the locking element 21 is fixedly connected with the upper cover plate 22 and the lower cover plate 23 and the use of the special syringe is not affected, in the present invention, the cross section of the projection 28 is triangular, and the cross section of the slot 29 is also triangular.

Further, aprotective cover 12 is screwed on the head of theinjection tube 1; a layer ofdustproof film 13 is arranged between the inner side of the head part of theprotective cover 12 and the head part of theinjection tube 1; preventing dust from entering theinjection tube 1 and contaminating the chain hemostasis device.

Furthermore, a plurality of anti-slip grooves 4 for increasing friction force are arranged on the outer surfaces of theupper cover plate 22 and thelower cover plate 23 at intervals, and corrugations for increasing friction force are arranged on the surfaces of thehandle 11, so that the anti-slip handle plays a role in preventing slipping when being used by an operator.

The working principle of the invention is as follows:

when the invention is assembled, firstly, the chain type hemostasis device is put into theinjection tube 1, thelock catch piece 1 is sleeved outside theinjection tube 1 and is abutted against thegrip 11, theinjection tube 1 can slide through the throughhole 212, and one ends of theupper cover plate 22 and thelower cover plate 23 pass through the embeddinghole 211 on thelock catch piece 21 for fixing; secondly, the connectingrod 26 with the largest diameter in thetelescopic push rod 24 is partially inserted into theinjection tube 1, the connectingrod 26 with the smallest diameter is inserted into the corresponding insertingdisc 251 of thetail fixing piece 25 for fixing, and meanwhile, the other ends of theupper cover plate 22 and thelower cover plate 23 are also inserted into the corresponding insertingdisc 251 of thetail fixing piece 25 for fixing;

when not in use, firstly, the fixingpin 3 is inserted into theunilateral hole 27 at the joint of the lockingpiece 21, theinjection tube 1 and the connectingrod 26 to fix the positions of the three; then, thestopper 263 of thelink 26 located at the middle portion of thetelescopic push rod 24 is pressed, so that thesecond stopper 262 of thelink 26 located at the front is released from the space between thefirst stopper 261 and thestopper 263, thetelescopic push rod 24 is contracted, and since thelink 26 having the largest diameter is connected to thesyringe 1 by the fixingpin 3, thesyringe 1 passes through the throughhole 212 and then is retracted into the space between theupper cover 22 and thelower cover 23 following thelink 26, thereby achieving the contraction of thesyringe 1.

During the use, the extension of pullingtelescopic push rod 24, every section of connectingrod 26 reciprocal anchorage,syringe 1 passes through-hole 212 and outwards extends, be in the standby state, pull down fixedpin 3, impelsyringe 1 wounded's wound, holdhandle 11, exert backward pulling force tosyringe 1,syringe 1 moves backward alongtelescopic push rod 24,telescopic push rod 24 takes place relative movement withsyringe 1 this moment,telescopic push rod 24 penetrates insyringe 1, release the chain hemostasis device insyringe 1, push inside the wound, chain hemostasis device's hemostasis material meets the blood inflation and stanchs.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (9)

1. The utility model provides a special syringe of flexible push rod type chain hemostasis device which characterized in that: comprises an injection tube (1) for storing a chain type hemostatic device and a propelling mechanism (2) for propelling the injection tube (1) to move; a grip (11) which is vertical to the injection tube (1) and extends outwards is fixed at the tail part of the injection tube (1); the propelling mechanism (2) comprises a lock catch piece (21) sleeved on the outer side wall of the tail of the injection tube (1), an upper cover plate (22) and a lower cover plate (23) which are symmetrically arranged, a telescopic push rod (24) arranged in a containing space formed by the upper cover plate (22) and the lower cover plate (23) and a tail fixing piece (25) fixedly connected with the telescopic push rod (24), the upper cover plate (22) and the lower cover plate (23); one end of the telescopic push rod (24) penetrates into the injection tube (1) to push the chain type hemostasis device, and the other end of the telescopic push rod is connected with the tail fixing piece (25); one ends of the upper cover plate (22) and the lower cover plate (23) symmetrically penetrate into the lock catch piece (21) to fix the positions of the upper cover plate (22), the lower cover plate (23) and the lock catch piece (21), and the other ends of the upper cover plate and the lower cover plate are connected with the tail fixing piece (25); the telescopic push rod (24) contracts, and the injection tube (1) penetrates through the lock catch piece (21) and then is accommodated into the accommodating space between the upper cover plate (22) and the lower cover plate (23) in the direction towards the telescopic push rod (24).

2. The syringe special for the telescopic push rod type chain type hemostasis device as claimed in claim 1, wherein: the telescopic push rod (24) comprises a plurality of connecting rods (26) which are connected in a sliding manner, and the diameters of the telescopic push rod (24) are smaller than that of the injection tube (1); the diameter of each connecting rod (26) from the locking fastener (21) to the tail fixing piece (25) is reduced in sequence, and the front connecting rod (26) and the rear connecting rod (26) are sleeved with each other; the outer side wall of the connecting end of each connecting rod (26) and the front connecting rod (26) protrudes to form a first limit block (261) which exceeds the outer surface, and the inner side wall of the connecting end of each connecting rod (26) and the rear connecting rod (26) protrudes to form a second limit block (262) which exceeds the inner surface; the second stopper 262 of the forward link 26 and the first stopper 261 of the rearward link 26 are engaged with each other to fix the positions of the two links 26.

3. The syringe special for the telescopic push rod type chain type hemostasis device as claimed in claim 2, wherein: the outer side wall of the connecting rod (26) is further provided with a blocking piece (263), the blocking piece (263) is located behind the first limiting block (261), and the blocking piece (263) and the first limiting block (261) are clamped into the second limiting block (262) for fixation.

4. The syringe special for the telescopic push rod type chain type hemostasis device as claimed in claim 3, wherein: the injection tube (1), the locking piece (21) and the side wall of the joint of the connecting rod (26) penetrating into the injection tube (1) are all provided with single-side holes (27), and one end of a fixing pin (3) sequentially penetrates through the single-side holes (27) on the locking piece (21), the injection tube (1) and the connecting rod (26) from outside to inside so as to lock the positions of the locking piece (21), the injection tube (1) and the connecting rod (26); and the fixing pin (3) is provided with a pull ring (31).

5. The syringe special for the telescopic push rod type chain type hemostasis device as claimed in claim 4, wherein: two embedding holes (211) are symmetrically formed in the lock catch piece (21) and are used for the upper cover plate (22) and the lower cover plate (23) to penetrate through for fixing, and a through hole (212) for the injection tube (1) to penetrate through is formed between the two embedding holes (211).

6. The syringe special for the telescopic push rod type chain type hemostasis device as claimed in claim 5, wherein: the outer side walls of the end heads of the upper cover plate (22) and the lower cover plate (23) penetrating into the embedding holes (211) are respectively provided with a convex block (28) protruding out of the surfaces of the upper cover plate (22) and the lower cover plate (23); two parallel slits are arranged at the top end of the embedding hole (211) connected with the upper cover plate (22) and the bottom end of the embedding hole (211) connected with the lower cover plate (23), and a limiting part (213) is formed between the two slits; the inner side walls of the limiting part (213) connected with the upper cover plate (22) and the lower cover plate (23) are respectively sunken to form clamping grooves (29) for clamping the two convex blocks (28), and the locking fastener (21) is respectively fixed with the upper cover plate (22) and the lower cover plate (23) through the matching of the convex blocks (28) and the clamping grooves (29).

7. The syringe special for the telescopic push rod type chain type hemostasis device as claimed in any one of claims 1 to 6, wherein: the tail fixing piece (25) comprises a plug-in tray (251) and a fixing table (252) which are fixedly connected; the inserting disc (251) is provided with a locking hole (253) for inserting and fixing the upper cover plate (22), the lower cover plate (23) and the connecting rod (26).

8. The syringe special for the telescopic push rod type chain type hemostasis device as claimed in claim 7, wherein: the head of the injection tube (1) is screwed with a protective cover (12); a layer of dustproof thin film (13) is arranged between the inner side of the head of the protective cover (12) and the head of the injection tube (1).

9. The syringe special for the telescopic push rod type chain type hemostasis device as claimed in claim 1, wherein: the outer surfaces of the upper cover plate (22) and the lower cover plate (23) are provided with a plurality of anti-skidding grooves (4) for increasing friction force at intervals, and the surface of the handle (11) is provided with corrugations for increasing friction force.

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