[0028] The present invention will be described in detail below with reference to the drawings and specific embodiments.
[0029] See Figure 1 to Figure 5 , A telescopic push rod type special syringe for chain hemostatic device, including an injection tube 1 used to store the chain hemostatic device and a propulsion mechanism 2 used to push the injection tube 1 to move; the chain hemostatic device is inflated by blood A hemostatic chain formed by a series of hemostatic materials. The adjacent hemostatic materials on the hemostatic chain can be squeezed and contracted and stored in the injection tube 1. When used, the hemostatic chain is pushed into the wound to stop bleeding; the tail of the injection tube 1 is fixed with The vertical and outwardly extending grip 11 of the injection tube 1 facilitates the operator to pull the injection tube 1; the pushing mechanism 2 includes a locking member 21 sleeved on the outer side wall of the tail of the injection tube 1 and two symmetrically arranged upper The cover sheet 22 and the lower cover sheet 23, the telescopic push rod 24 arranged in the containing space formed by the upper cover sheet 21 and the lower cover sheet 23, and the fixed connection telescopic push rod 24 are fixed to the tails of the upper cover sheet 22 and the lower cover sheet 23 Piece 25; the upper cover piece 22 and the lower cover piece 23 form a space capable of accommodating the telescopic push rod 24 and the injection tube 1 respectively from the enclosure. The upper cover piece 22 and the lower cover piece 23 are of equal length, and the cross section can be any shape. In the present invention, the cross section of the upper cover piece 22 and the lower cover piece 23 is a triangle with arc edges; one end of the telescopic push rod 24 penetrates into the injection tube 1 to push the chain hemostatic device, and the other end is connected to the tail fixing part 25 connection; one end of the upper cover piece 22 and the lower cover piece 23 symmetrically penetrate the lock member 21 to fix the position of the upper cover piece 22, the lower cover piece 23 and the lock member 21, and the other end is connected to the tail fixing piece 25 connection; the tail fixing member 25 includes a fixedly connected insert plate 251 and a fixing table 252; the insert plate 251 is provided with a lock hole 253 for the upper cover sheet 22, the lower cover sheet 23 and the connecting rod 26 to be inserted and fixed, After the upper cover piece 22 and the lower cover piece 23 are inserted into the lock hole 253, they can be re-locked by tightening bolts through the inserting plate 251 and the upper cover piece 22 or the lower cover piece 23; the upper cover piece 22 and the lower cover piece 23 Plays the role of connecting and fixing the injection tube 1 and the tail fixing part 25, and can support the entire structure of the special syringe; the telescopic push rod 24 contracts, which can drive the injection tube 1 to pull back through the lock 21 and face the telescopic push rod 24 It is stored in the accommodating space between the upper cover sheet 22 and the lower cover sheet 23, thereby realizing the shrinkage of the injection tube 1. In the present invention, the telescopic push rod 24 can be any rod connection structure capable of telescoping, and the injection tube 1 and The propulsion mechanism 2 is made of sanitary polypropylene.
[0030] Further, the telescopic push rod 24 includes a plurality of slidingly connected connecting rods 26, the diameter of the telescopic push rod 24 is smaller than the diameter of the injection tube 1; the diameter of each connecting rod 26 from the lock 21 to the tail fixing part 25 The front and rear connecting rods 26 are mutually sleeved to achieve expansion and contraction; the outer side wall of the connecting end of each connecting rod 26 and the front connecting rod 26 protrudes to form a circle of first limit blocks 261 beyond the outer surface, and each connecting rod 26 and The inner side wall of the connecting end of the rear connecting rod 26 protrudes to form a second stop block 262 that exceeds the inner surface; the second stop block 262 of the front connecting rod 26 and the first stop block of the rear connecting rod 26 261 is engaged with each other to fix the position of the two front and rear connecting rods 26; the outer side wall of the connecting rod 26 is also provided with a blocking block 263, the blocking block 263 is located behind the first limiting block 261, the blocking block 263 and the first The second limit block 262 is fixed between the limit blocks 261. At the same time, when the telescopic push rod 24 needs to be retracted, the stop block 263 is pressed, so that the second limit block 262 of the connecting rod 26 located in the front moves from the first limit The space between the block 261 and the blocking block 263 escapes to facilitate the contraction of the telescopic push rod 24; the outer side wall of the connecting rod 26 connected with the injection tube 1 may not be provided with the first limiting block 261 and the blocking block 263.
[0031] Further, the injection tube 1, the locking member 21, and the side wall of the connection point of the connecting rod 26 penetrating the injection tube 1 are all provided with a unilateral hole 27, and one end of a fixing pin 3 passes through from outside to inside. The single-sided hole 27 on the locking member 21, the injection tube 1 and the connecting rod 26 is used to lock the position of the locking member 21, the injection tube 1 and the connecting rod 26; the fixing pin 3 is provided with a pull ring 31 and a fixing pin 3 It is equivalent to the insurance of a special syringe. It is used to lock the position of the injection tube 1, the telescopic push rod 24 and the locking member 21 when the chain hemostatic device is injected to prevent the telescopic push rod 24 from penetrating into the injection tube to push the chain hemostatic device out .
[0032] Further, the locking member 21 is symmetrically provided with two fitting holes 211 for the upper cover sheet 22 and the lower cover sheet 23 to penetrate for fixing respectively, and a through hole for the injection tube 1 to pass is provided between the two fitting holes 211. Hole 212; the shape of the fitting hole 211 should be the same cross-sectional shape of the upper cover sheet 22 and the lower cover sheet 23, which is convenient for the upper cover sheet 22 and the lower cover sheet 23 to penetrate and fix.
[0033] Further, the outer side walls of the ends of the upper cover sheet 22 and the lower cover sheet 23 penetrating into the fitting hole 211 are respectively provided with bumps 28 protruding from the surfaces of the upper cover sheet 22 and the lower cover sheet 23; connected to the upper cover sheet 22 The top end of the fitting hole 211 and the bottom end of the fitting hole 211 connected to the lower cover sheet 23 are both provided with two parallel slits, and a limiting member 213 is formed between the two slits; the limiting member 213 and The inner side walls connected by the upper cover sheet 22 and the lower cover sheet 23 are respectively recessed to form a groove 29 for engaging the two protrusions 28. The cooperation of the protrusion 28 and the groove 29 connects the locking member 21 with the upper cover sheet 22 and the lower cover respectively. The sheet 22 is fixed; it should be noted that there are many ways to fix the lock 21 and the upper cover sheet 22, the lower cover sheet 23, and only need to realize the fixed connection of the lock member 21 with the upper cover sheet 22 and the lower cover sheet 23 and Any method and device that does not affect the use of the dedicated syringe can be used. In the present invention, the cross section of the protrusion 28 is triangular, and the cross section of the groove 29 is also triangular.
[0034] Further, a protective cover 12 is screwed to the head of the injection tube 1; a dustproof film 13 is provided between the inner side of the head of the protective cover 12 and the head of the injection tube 1; to prevent dust from entering the injection tube 1 and contaminating the chain Type hemostatic device.
[0035] Further, the outer surfaces of the upper cover sheet 22 and the lower cover sheet 23 are provided with a number of anti-slip grooves 4 to increase friction at intervals, and the surface of the handle 11 is provided with corrugations to increase friction, which are used by the operator Play the role of anti-skid.
[0036] The working principle of the present invention:
[0037] When assembling the present invention, first, the chain hemostatic device is put into the injection tube 1, the locking member 1 is sleeved on the outside of the injection tube 1 and close to the grip 11, the injection tube 1 can slide through the through hole 212, One end of the cover piece 22 and the lower cover piece 23 passes through the fitting hole 211 on the lock member 21 for fixing; secondly, the connecting rod 26 with the largest diameter in the telescopic push rod 24 is inserted into the injection tube 1, and the smallest diameter The connecting rod 26 is inserted into the corresponding insert plate 251 of the tail fixing member 25 for fixing, and the other ends of the upper cover piece 22 and the lower cover piece 23 are also inserted into the corresponding insert plate 251 of the tail fixing piece 25 for fixing;
[0038] When not in use, first, insert the fixing pin 3 into the one-sided hole 27 at the connection of the lock 21, the injection tube 1 and the connecting rod 26 to fix the positions of the three; then, squeeze the telescopic push rod 24 in The blocking block 263 of the connecting rod 26 in the middle part causes the second limiting block 262 of the connecting rod 26 located in the front to escape from the space between the first limiting block 261 and the blocking block 263, shrinking the telescopic push rod 24, Since the connecting rod 26 with the largest diameter is connected to the injection tube 1 by the fixing pin 3, the injection tube 1 passes through the through hole 212 and then follows the connecting rod 26 to be recovered into the space between the upper cover sheet 22 and the lower cover sheet 23 to realize the injection tube 1 contraction.
[0039] When in use, pull the telescopic push rod 24 to extend, each link 26 is fixed to each other, the injection tube 1 extends through the through hole 212, and is in standby state. Pull down the fixing pin 3 to push the injection tube 1 into the wound of the wounded Hold the handle 11 and apply a backward pulling force to the injection tube 1. The injection tube 1 moves backward along the telescopic push rod 24. At this time, the telescopic push rod 24 and the injection tube 1 move relative to each other, and the telescopic push rod 24 penetrates Into the injection tube 1, the chain hemostatic device in the injection tube 1 is pushed out and pushed into the wound, and the hemostatic material of the chain hemostatic device is swelled by blood to stop bleeding.
[0040] The above are only the embodiments of the present invention, and do not limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the description and drawings of the present invention, or directly or indirectly applied to other related technologies In the same way, all fields are included in the scope of patent protection of the present invention.
