CN214484803U - Viscoelastic agent and perfusate double-channel integrated injection device - Google Patents

Abstract

The utility model discloses an integrative injection device of viscoelastic agent and perfusate binary channels, including binary channels syringe needle body, binary channels cylinder and pressure monitor, first cylinder way and second cylinder way are separated into with the barrel cavity of binary channels cylinder to the middle part baffle, open at binary channels cylinder front end middle part has a liquid spliced eye, binary channels syringe needle body comprises syringe needle pipe A and syringe needle pipe B who communicates with syringe needle pipe A, syringe needle pipe B tip has first mouth of pipe, be equipped with miniature pressure sensor A on the first mouth of pipe, be equipped with interior syringe needle pipe in syringe needle pipe A's the lumen, the second mouth of pipe passes syringe needle pipe A's pipe wall and is equipped with miniature pressure sensor B on the second mouth of pipe, miniature pressure sensor A, miniature pressure sensor B is connected with pressure monitor respectively. The utility model discloses can realize adopting two kinds of materials of viscoelastic agent, perfusate to inject into to the specific area in the eyeball respectively, maintain the intraocular pressure balance, protect the eyeball structure, create safe operation condition for ophthalmic surgery.

Description

Viscoelastic agent and perfusate double-channel integrated injection device

Technical Field

The utility model relates to an ophthalmology medical instrument field especially relates to an integrative injection device of viscoelastic agent and perfusate binary channels.

Background

Fig. 1 simply shows the basic structure of a human eyeball, which is composed of a cornea 100, an anterior chamber 101, an iris 102, a capsular bag 103, a posterior chamber 106, a vitreous cavity 108, and a lens 104 inside the capsular bag 103 from the outside to the inside of the eyeball. In various ophthalmic surgeries, the pressure inside the eyeball needs to be kept in a balanced and proper state, the intraocular pressure is the pressure exerted by the contents of the eyeball on the wall of the eyeball, the normal intraocular pressure is in a range of 10mmHg-21mmHg (1.33kPa-2.80kPa), and the structure of the eyeball needs to be kept intact and effectively protected, and the prior art generally needs to inject viscoelastic agents into the eyeball. For example, in cataract surgery, the cataract disease is mainly caused by the opacity of natural lens, and needs to replace artificial lens, firstly, an incision 107 is made in the cornea 100, and viscoelastic agent needs to be injected into the anterior chamber (mainly the region of the anterior chamber 101 in fig. 1) of the eye of the cataract patient through a special surgical needle, so as to maintain intraocular pressure, protect the tissues of the eyeball and the like. Wherein, the viscoelastic agent comprises the following main components: sodium hyaluronate, chondroitin sulfate and methylcellulose generally need to absorb most of viscoelastic agents after the operation is finished, a small amount of residual viscoelastic agents can be absorbed and metabolized by the human body, and the viscoelastic agents are harmless under normal intraocular pressure.

Ophthalmic surgery (for example, cataract surgery, especially for complex cataract patients with a history of previous vitrectomy surgery or high myopia, the fluid loss in the posterior chamber 106 and the vitreous cavity 108 is serious), viscoelastic injection is an important filling and safety guarantee for the surgical process, but the mobility of viscoelastic is limited, the filling of the anterior chamber 101 of the eyeball can be better implemented under professional operation of doctors, the balance of intraocular pressure is maintained, the posterior chamber 106 and the vitreous cavity 108 of the eyeball are also important areas, viscoelastic is not easy to be filled in the above areas, so perfusion fluid (water sample texture) is usually adopted for filling, the perfusion fluid is a necessary sterile perfusion solution, and is a sterile physiological balanced salt solution, and the main ingredients are: sodium chloride, potassium chloride, calcium chloride dihydrate, magnesium chloride hexahydrate, sodium acetate trihydrate, sodium citrate dihydrate and water for injection. The existing injection needle and injector for injecting viscoelastic agent or perfusate have single structures, and can only inject the first substance for two ophthalmic surgery substances of viscoelastic agent and perfusate, and then inject the second substance after the viscoelastic agent and the perfusate are successful, so that the injection needle can be inserted and pulled out in the incision 107 for multiple times, the internal tissues of eyeballs can be easily scratched and damaged, the operation difficulty of the surgery is increased, the surgery risk and the complication occurrence rate can be greatly improved, meanwhile, when the two substances are injected, the internal pressure of the eyeballs can not be monitored, the intraocular pressure is easily unbalanced, and the ophthalmic surgery failure and serious medical accidents are easily caused.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects existing in the prior art, the utility model aims to provide a viscoelastic agent and perfusate double-channel integrated injection device, wherein a double-channel needle cylinder comprises a first cylinder channel and a second cylinder channel, two flow channels are respectively provided with a piston push rod, the first cylinder channel is used for storing perfusate, the second cylinder channel is used for storing viscoelastic agent, and the injection operation can be respectively carried out; the viscoelastic agent filling channel corresponding to the second cylinder is arranged in the dual-channel needle body, viscoelastic agent filling can be carried out on a specific region in an eyeball, the dual-channel needle body is the filling liquid filling channel corresponding to the first cylinder except the second cylinder, filling liquid filling can be carried out on the specific region in the eyeball, two different substances in different regions in the eyeball can be filled through one set of injection device, operation risks are greatly reduced, and the eyeball structure is effectively protected.

The purpose of the utility model is realized through the following technical scheme:

a viscoelastic agent and perfusate double-channel integrated injection device comprises a double-channel needle body and a double-channel needle cylinder, wherein a middle partition plate is arranged in the middle of a cylinder cavity of the double-channel needle cylinder, the cylinder cavity of the double-channel needle cylinder is divided into a first cylinder channel and a second cylinder channel by the middle partition plate, a first piston push rod is movably installed in the first cylinder channel in a push-and-pull mode, a second piston push rod is movably installed in the second cylinder channel in a push-and-pull mode, a liquid outlet insertion hole is formed in the middle of the front end of the double-channel needle cylinder, and the liquid outlet insertion hole is respectively communicated with the first cylinder channel and the second cylinder channel; the double-channel needle head body consists of a needle head tube A and a needle head tube B communicated with the needle head tube A, the rear end part of the needle head tube A is provided with an insertion part, and the insertion part is inserted in a liquid outlet insertion hole of the double-channel needle cylinder in a sealing way; the end part of the needle tube B is provided with a first tube opening, an inner needle tube is arranged in a tube cavity of the needle tube A, the tube opening of the inner needle tube close to the insertion part is flush with the end face of the insertion part, the tube opening at the other end of the inner needle tube is a second tube opening, and the second tube opening penetrates through the tube wall of the needle tube A.

In order to better realize the utility model, the utility model also comprises a pressure monitor, a micro pressure sensor A is arranged on the first pipe orifice, a first circuit cavity is arranged on the pipe wall of the double-channel needle body along the length direction, and a first signal wire for connecting the micro pressure sensor A and the pressure monitor is arranged in the first circuit cavity; the needle tube A and the needle tube B form an included angle.

The further technical scheme is as follows: the pressure monitor is also connected with an air pressure detector; the miniature pressure sensor B is arranged on the second pipe orifice, a second line cavity is formed in the pipe wall of the needle tube A along the length direction, and a second signal wire used for connecting the miniature pressure sensor B and the pressure monitor is arranged in the second line cavity.

Preferably, the end face of the inserting part is fixedly provided with a separating inserting plate, and the middle partition plate is provided with an inserting groove which is inserted in a matching manner with the separating inserting plate.

Preferably, the miniature pressure sensor A is in the shape of a cylinder, and a cylinder cavity of the miniature pressure sensor A, a tube cavity of the needle tube B, a tube cavity of the needle tube A and a first cylinder channel of the double-channel cylinder are communicated in sequence.

Preferably, miniature pressure sensor B is the barrel shape, miniature pressure sensor B's section of thick bamboo chamber, the lumen of interior syringe needle pipe, the second cylinder way of binary channels syringe communicate in proper order.

Preferably, a first liquid injection pipe communicated with the first cylinder is arranged on the double-channel cylinder, and a pipe valve A is arranged on the first liquid injection pipe.

Preferably, a second liquid injection pipe communicated with the second cylinder passage is arranged on the double-channel cylinder, and a pipe valve B is arranged on the second liquid injection pipe.

Preferably, the first piston push rod comprises a piston A and a push rod A fixedly connected with the piston A, the piston A is arranged in the first cylinder channel in a matching manner, and a push handle A arranged outside the rear end of the double-channel cylinder is fixed at the end part of the push rod A; the second piston push rod comprises a piston B and a push rod B fixedly connected with the piston B, the piston B is arranged in the second cylinder channel in a matched mode, and a push handle B arranged outside the rear end of the double-channel cylinder is fixed to the end portion of the push rod B.

Preferably, the top surface of the inner needle tube is a horizontal plane, the top surface of the inner needle tube is located in the middle of the lumen of the needle tube a, and the middle partition plate is an extension plate of the top surface of the inner needle tube.

Compared with the prior art, the utility model, have following advantage and beneficial effect:

(1) the utility model discloses a binary channels cylinder includes two flow channels of first cylinder way and second cylinder way, is equipped with the piston push rod respectively in two flow channels, and the first cylinder way is used for storing the perfusate, and the second cylinder way is used for storing the viscoelastic agent, can carry out the operation of pushing respectively; the viscoelastic agent filling channel corresponding to the second cylinder is arranged in the dual-channel needle body, viscoelastic agent filling can be carried out on a specific region in an eyeball, the dual-channel needle body is the filling liquid filling channel corresponding to the first cylinder except the second cylinder, filling liquid filling can be carried out on the specific region in the eyeball, two different substances in different regions in the eyeball can be filled through one set of injection device, operation risks and complication incidence rate are greatly reduced, and the eyeball structure is effectively protected.

(2) The utility model discloses can realize adopting two kinds of materials of viscoelastic agent, perfusate to inject into to the specific region in the eyeball respectively, maintain the intraocular pressure balance, protect the eyeball structure, create good, safe operation condition for ophthalmic surgery.

(3) The utility model discloses when the pressure in posterior chamber, vitreous body region, anterior chamber region reduces in the eyeball, can accurately learn respectively through miniature pressure sensor B, miniature pressure sensor A to correspond the replenishment and pour into perfusate or viscoelastic agent, and in time maintain the intraocular pressure balanced and protect the eyeball structure.

Drawings

FIG. 1 is a schematic diagram of a human eyeball tissue structure;

FIG. 2 is a schematic perspective view of the dual channel needle body;

FIG. 3 is a sectional view of the dual-channel needle body and the dual-channel syringe after being spliced and combined;

FIG. 4 is a schematic view of the insertion assembly of the dual channel needle body and the dual channel syringe;

FIG. 5 is a sectional view of the dual channel needle body;

FIG. 6 is an enlarged fragmentary view of FIG. 5 at the location of the first orifice;

FIG. 7 is an enlarged fragmentary view of FIG. 5 at the second nozzle location;

fig. 8 is a partially enlarged view of fig. 5 at the position of the insertion portion.

Wherein, the names corresponding to the reference numbers in the drawings are:

1-double-channel needle body, 2-needle tube A, 21-inserting part, 3-needle tube B, 31-first tube opening, 32-miniature pressure sensor A, 4-inner needle tube, 41-second tube opening, 42-miniature pressure sensor B, 5-double-channel needle tube, 6-first tube passage, 7-first piston push rod, 8-second tube passage, 9-second piston push rod, 10-middle partition plate, 11-partition inserting plate, 12-liquid outlet inserting hole, 13-pressure monitor, 14-air pressure detector, 15-first liquid injection tube, 16-second liquid injection tube, 100-cornea, 101-anterior chamber, 102-iris, 103-crystalline lens bag, 104-crystalline lens, 105-crystalline lens suspensory ligament, 106-posterior chamber, 107-incision and 108-vitreous cavity.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

examples

As shown in fig. 2 to 8, a viscoelastic agent and perfusate dual-channel integrated injection device comprises a dual-channel needle body 1, a dual-channel needle cylinder 5 and a pressure monitor 13, wherein a middle partition plate 10 is arranged in the middle of a cylinder cavity of the dual-channel needle cylinder 5, the cylinder cavity of the dual-channel needle cylinder 5 is divided into a first cylinder channel 6 and a second cylinder channel 8 by the middle partition plate 10, a first piston push rod 7 is movably installed in the first cylinder channel 6 in a push-pull manner, a second piston push rod 9 is movably installed in the second cylinder channel 8 in a push-pull manner, the first cylinder channel 6 is used for storing perfusate, the perfusate is injected into a cavity of the dual-channel needle body 1 except an inner needle tube 4 through the first piston push rod 7 and then is output through a first pipe orifice 31; the second channel 8 is used for storing viscoelastic, and the viscoelastic is injected into the cavity of the inner needle tube 4 through the second piston push rod 9 and then is output through the second nozzle 41. The middle part of the front end of the double-channel needle cylinder 5 is provided with a liquid outlet insertion hole 12, and the liquid outlet insertion hole 12 is respectively communicated with the first cylinder passage 6 and the second cylinder passage 8. As shown in fig. 3 and 4, the double-channel syringe 5 is provided with a first infusion tube 15 communicated with the first syringe 6, the first infusion tube 15 is provided with a pipe valve a, the pipe valve a can perform opening and closing operations of the first infusion tube 15, when infusion liquid needs to be injected into the first syringe 6 through the first infusion tube 15, the pipe valve a is opened, otherwise, the pipe valve a is closed. The double-channel needle cylinder 5 is provided with a second liquid injection pipe 16 communicated with the second cylinder channel 8, the second liquid injection pipe 16 is provided with a pipe valve B, the pipe valve B can perform opening and closing operation of the second liquid injection pipe 16, when viscoelastic agent needs to be injected into the second cylinder channel 8 through the second liquid injection pipe 16, the pipe valve B is opened, otherwise, the pipe valve B is closed.

As shown in fig. 3 and 4, the first piston push rod 7 includes a piston a and a push rod a fixedly connected with the piston a, the piston a is disposed in the first cylinder 6 in a matching manner, and a push handle a disposed outside the rear end of the dual-channel cylinder 5 is fixed at the end of the push rod a. The second piston push rod 9 comprises a piston B and a push rod B fixedly connected with the piston B, the piston B is arranged in the second cylinder passage 8 in a matching mode, and a push handle B arranged outside the rear end of the double-channel cylinder 5 is fixed at the end portion of the push rod B.

As shown in fig. 5-8, the double-channel needle body 1 is composed of a needle tube a2 and a needle tube B3 communicated with the needle tube a2, an included angle is formed between the needle tube a2 and the needle tube B3, the rear end of the needle tube a2 is provided with an insertion part 21, and the insertion part 21 is inserted in the liquid outlet insertion hole 12 of the double-channel syringe 5 in a sealing manner. The end of the needle tube B3 is provided with a first tube opening 31, the first tube opening 31 is provided with a miniature pressure sensor A32, the tube wall of the dual-channel needle body 1 is provided with a first circuit cavity along the length direction, the first circuit cavity is provided with a first signal line for connecting the miniature pressure sensor A32 and the pressure monitor 13, as shown in fig. 5, the tube wall above the dual-channel needle body 1 (including the needle tube A2 and the needle tube B3) is provided with a first circuit cavity formed by an inner and outer double-layer structure, the first circuit cavity is used for laying the first signal line, of course, a wire groove A can be arranged outside the dual-channel needle body 1 (namely, the outer tube wall), the first signal line is laid in the wire groove A, and then the wire groove A is sealed and encapsulated. As shown in fig. 6, the micro pressure sensor a32 is in the shape of a cylinder, the micro pressure sensor a32 is fixedly arranged at the end of the first tube opening 31 (as shown in fig. 5, the micro pressure sensor a32 extends from the end of the first tube opening 31), and the barrel cavity of the micro pressure sensor a32, the lumen of the needle cannula B3, the lumen of the needle cannula a2, and the first channel 6 of the dual-channel syringe 5 are sequentially communicated.

The utility model discloses a binary channels syringe needle body 1 adopts the grafting combination mode with binary channels cylinder 5, after pegging graft, separates plugboard 11 and just in time pegs graft in the grafting recess of middle part baffle 10, separates plugboard 11 and also can separate two kinds of materials of viscoelastic agent, perfusate, and it is very convenient to make up the use, and it is also very convenient to dismantle the clearance. The utility model discloses a binary channels cylinder 5 can also join in marriage a set shutoff and block up, and when not using binary channels cylinder 5, this shutoff stopper is used for plugging up binary channels cylinder 5's play liquid spliced eye 12.

An inner needle tube 4 is arranged in a tube cavity of the needle tube A2, a tube opening of the inner needle tube 4 close to the insertion part 21 is flush with the end face of the insertion part 21, a tube opening at the other end of the inner needle tube 4 is a second tube opening 41, the second tube opening 41 penetrates through the tube wall of the needle tube A2, a miniature pressure sensor B42 is arranged on the second tube opening 41, a second circuit cavity is arranged on the tube wall of the needle tube A2 along the length direction, a second signal line for connecting the miniature pressure sensor B42 with the pressure monitor 13 is arranged in the second circuit cavity, as shown in figure 5, a second circuit cavity formed by an inner-outer double-layer structure is arranged on the tube wall below the needle tube A2, the second circuit cavity is used for arranging the second signal line, of course, a wire groove B can be arranged outside the needle tube A2, the second signal line is arranged in the wire groove B, and then the second signal line is sealed and encapsulated. As shown in fig. 7, the micro pressure sensor B42 is cylindrical, the micro pressure sensor B42 is fixed to the end of the second nozzle 41 (as shown in fig. 5, the micro pressure sensor B42 extends from the end of the second nozzle 41), and the barrel cavity of the micro pressure sensor B42, the lumen of the inner needle tube 4, and the second barrel channel 8 of the dual-channel syringe 5 are sequentially communicated.

The utility model discloses a miniature pressure sensor A32, miniature pressure sensor B42 all adopt miniature pressure sensor or intraocular pressure sensor that is applicable to eyeball inside, if adopt the periodicals "sensor and microsystem", 2010(029)006, the small of the justice of Zhu, Liu Jing etc. wherein the implantable intraocular pressure microsensor that introduces, if adopt the pressure sensor in the implantable intraocular pressure monitor that can supply glaucoma patient to use that mentions in hundred degree encyclopedic "implantable intraocular pressure monitor".

The utility model discloses a pressure monitor 13 still is connected with air pressure detector 14, pressure monitor 13 has the display screen, the display screen can show the pressure condition that miniature pressure sensor B42 surveyed, show the pressure condition that miniature pressure sensor A32 surveyed and the pressure condition that air pressure detector 14 surveyed, air pressure detector 14 is used for monitoring outside air pressure, pressure monitor 13 is inside to have the pressure contrast module, the pressure contrast module compares outside air pressure and intraocular pressure, and show the contrast result on pressure monitor 13's display screen.

As shown in fig. 4, the end face of the inserting portion 21 is fixedly provided with a separation inserting plate 11, and the middle partition plate 10 is provided with an inserting groove which is inserted and matched with the separation inserting plate 11.

As shown in fig. 5, the top surface of the inner needle tube 4 is a horizontal surface, the top surface of the inner needle tube 4 is located in the middle of the lumen of the needle tube a2, and the middle partition 10 is an extension board of the top surface of the inner needle tube 4.

When in use, the double-channel needle head body 1 and the double-channel needle cylinder 5 are matched and spliced as follows: the separation inserting plate 11 corresponds to the inserting groove of the middle partition plate 10, the inserting part 21 of the double-channel needle body 1 is inserted into the liquid outlet inserting hole 12 of the double-channel needle cylinder 5, and the separation inserting plate 11 corresponds to the inserting groove of the middle partition plate 10, so that the separation inserting plate 11 is arranged in the liquid outlet inserting hole 12 and plays a role of separating channels, and the perfusion fluid and the viscoelastic agent can be prevented from being contacted or mixed with each other.

The inner needle tube 4 forms a viscoelastic perfusion channel inside the needle tube A2, and the double-channel needle body 1 (comprising the needle tube A2 and the needle tube B3) forms a perfusion fluid perfusion channel except the tube cavity of the inner needle tube 4, so that the perfusion fluid perfusion channel and the viscoelastic perfusion channel are relatively isolated.

The perfusion liquid is stored in the first barrel 6, and the perfusion liquid can be injected into the first barrel 6 through the first perfusion tube 15; viscoelastic agent is stored in the second channel 8, and viscoelastic agent can be injected into the second channel 8 through the second liquid injection tube 16.

The double-channel needle body 1 is inserted into the eyeball of a patient through the cut 107, the second nozzle 41 of the inner needle tube 4 is just positioned in the area of the anterior chamber 101 so as to be convenient for injecting viscoelastic, the first nozzle 31 of the needle tube B3 is just positioned in the area of the posterior chamber 106 and the vitreous cavity 108 so as to be convenient for injecting perfusate, an included angle is formed between the needle tube A2 and the needle tube B3, the included angle is determined according to the structure of the eyeball of the human body, the main purpose of the included angle is to be convenient for the first nozzle 31 and the second nozzle 41 to be positioned in the corresponding areas, and the length sizes of the needle tube A2, the needle tube B3 and the inner needle tube 4 are also determined according to the structure of the eyeball of the human body. During operation, the injection operation of the perfusate and the viscoelastic agent can be performed in sequence, or the injection operation of the perfusate and the viscoelastic agent can be performed synchronously, for example, the second piston push rod 9 is pushed to inject the viscoelastic agent into the anterior chamber 101 area, and then the first piston push rod 7 is pushed to inject the perfusate into the posterior chamber 106 and the vitreous body 108 area; according to actual conditions, the viscoelastic agent and the perfusion fluid can be injected simultaneously by the first piston push rod 7 and the second piston push rod 9.

The miniature pressure sensor A32 at the end of the first nozzle 31 measures the intraocular pressure in the posterior chamber 106 and the area of the vitreous chamber 108 in real time and transmits the intraocular pressure data of the area to the pressure monitor 13 for display, and the pressure comparison module in the pressure monitor 13 compares the intraocular pressure measured by the miniature pressure sensor A32 with the external air pressure monitored by the air pressure detector 14 and displays the comparison result on the display screen of the pressure monitor 13. Therefore, the intraocular pressure data of the posterior chamber 106 and the area of the vitreous cavity 108 can be timely fed back, so that the flow of the perfusate injected into the first pipe orifice 31 can be conveniently fed back and controlled, and when the intraocular pressure of the area is reduced, the perfusate can be timely injected and supplemented. The miniature pressure sensor B42 at the end of the second nozzle 41 measures the intraocular pressure in the area of the anterior chamber 101 in real time and transmits the intraocular pressure data of the area to the pressure monitor 13 for display, and the pressure comparison module in the pressure monitor 13 compares the intraocular pressure measured by the miniature pressure sensor B42 with the external air pressure monitored by the air pressure detector 14 and displays the comparison result on the display screen of the pressure monitor 13. Thus, the intraocular pressure data of the anterior chamber 101 region can be fed back in time to facilitate the feedback control of the viscoelastic agent flow injected from the second nozzle 41, and when the intraocular pressure of the region is reduced, the injection can be performed in time to supplement the viscoelastic agent. The utility model adopts two substances of viscoelastic agent and perfusate to inject into the specific area of the eyeball respectively, thereby maintaining the pressure balance in the eyeball, protecting the eyeball structure and creating good operation conditions for ophthalmic surgery; when the pressure in the posterior chamber 106, the vitreous cavity 108 and the anterior chamber 101 of the eyeball is reduced, the pressure can be accurately obtained by the micro pressure sensor B42 and the micro pressure sensor A32 respectively, so as to correspondingly supplement the infusion fluid or the viscoelastic, maintain the balance of intraocular pressure and protect the eyeball structure in time. Moreover, the pressure monitor 13 can display the condition of the intraocular pressure and can also display the difference between the intraocular pressure and the external air pressure in real time, thereby protecting the eyeball and avoiding collapse or damage. After the operation is finished, the perfusate can be absorbed and metabolized by the interior of the eyeball without additional treatment, viscoelastic agents need to be absorbed and removed, the operation can be easily realized only by absorbing and removing in the anterior chamber 101, and the eyeball can also recover to the normal condition under the physiological action of the human body.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a viscoelastic agent and integrative injection device of perfusate binary channels which characterized in that: the double-channel syringe needle comprises a double-channel needle body (1) and a double-channel syringe barrel (5), wherein a middle partition plate (10) is arranged in the middle of a barrel cavity of the double-channel syringe barrel (5), the barrel cavity of the double-channel syringe barrel (5) is divided into a first barrel channel (6) and a second barrel channel (8) by the middle partition plate (10), a first piston push rod (7) is movably installed in the first barrel channel (6) in a push-and-pull mode, a second piston push rod (9) is movably installed in the second barrel channel (8) in the push-and-pull mode, a liquid outlet insertion hole (12) is formed in the middle of the front end of the double-channel syringe barrel (5), and the liquid outlet insertion hole (12) is respectively communicated with the first barrel channel (6) and the second barrel channel (8); the double-channel needle head body (1) consists of a needle head tube A (2) and a needle head tube B (3) communicated with the needle head tube A (2), the rear end part of the needle head tube A (2) is provided with an insertion part (21), and the insertion part (21) is inserted in a liquid outlet insertion hole (12) of the double-channel needle cylinder (5) in a sealing way; the syringe needle tube B (3) end has first mouth of pipe (31), be equipped with interior syringe needle pipe (4) in the lumen of syringe needle pipe A (2), the mouth of pipe that interior syringe needle pipe (4) are close to grafting portion (21) is parallel and level with grafting portion (21) terminal surface, the mouth of pipe of the other end of interior syringe needle pipe (4) is second mouth of pipe (41), the pipe wall of syringe needle pipe A (2) is passed in second mouth of pipe (41).

2. A viscoelastic and perfusate dual-channel integrated injector as set forth in claim 1, wherein: the pressure monitoring device is characterized by further comprising a pressure monitor (13), wherein a miniature pressure sensor A (32) is arranged on the first pipe orifice (31), a first line cavity is formed in the pipe wall of the double-channel needle head body (1) along the length direction, and a first signal line for connecting the miniature pressure sensor A (32) with the pressure monitor (13) is arranged in the first line cavity; the needle tube A (2) and the needle tube B (3) form an included angle.

3. A viscoelastic and perfusate dual-channel integrated injector as set forth in claim 2, wherein: the pressure monitor (13) is also connected with an air pressure detector (14); the pressure monitoring device is characterized in that a miniature pressure sensor B (42) is arranged on the second pipe orifice (41), a second line cavity is formed in the pipe wall of the needle pipe A (2) along the length direction, and a second signal wire used for connecting the miniature pressure sensor B (42) with the pressure monitor (13) is arranged in the second line cavity.

4. A viscoelastic and perfusate dual-channel integrated injector as set forth in claim 1, wherein: the end face of the inserting part (21) is fixedly provided with a separating inserting plate (11), and the middle partition plate (10) is provided with an inserting groove which is matched and inserted with the separating inserting plate (11).

5. A viscoelastic and perfusate dual-channel integrated injector as set forth in claim 2, wherein: the miniature pressure sensor A (32) is in a cylinder shape, and a cylinder cavity of the miniature pressure sensor A (32), a cylinder cavity of the needle tube B (3), a cylinder cavity of the needle tube A (2) and a first cylinder channel (6) of the double-channel cylinder (5) are communicated in sequence.

6. A viscoelastic and perfusate dual-channel integrated injector as set forth in claim 3, wherein: miniature pressure sensor B (42) are the barrel shape, the second pipeline (8) of the section of thick bamboo chamber, the lumen of interior syringe needle pipe (4), binary channels syringe (5) of miniature pressure sensor B (42) communicate in proper order.

7. A viscoelastic and perfusate dual-channel integrated injector as set forth in claim 1, wherein: be equipped with on binary channels cylinder (5) and annotate liquid pipe (15) that are linked together with first pipeline (6), be equipped with pipe valve A on first notes liquid pipe (15).

8. A viscoelastic and perfusate dual-channel integrated injector as set forth in claim 1, wherein: and a second liquid injection pipe (16) communicated with the second cylinder channel (8) is arranged on the double-channel cylinder (5), and a pipe valve B is arranged on the second liquid injection pipe (16).

9. A viscoelastic and perfusate dual-channel integrated injector as set forth in claim 1, wherein: the first piston push rod (7) comprises a piston A and a push rod A fixedly connected with the piston A, the piston A is arranged in the first cylinder channel (6) in a matched mode, and a push handle A arranged outside the rear end of the double-channel cylinder (5) is fixed at the end portion of the push rod A; second piston push rod (9) include piston B and be connected fixed push rod B with piston B, piston B cooperates and arranges second cylinder way (8) in, push rod B end fixing has the outside handle B that pushes away of arranging binary channels cylinder (5) rear end in.

10. A viscoelastic and perfusate dual-channel integrated injection device according to claim 4, characterized in that: the top surface of the inner needle tube (4) is a horizontal plane, the top surface of the inner needle tube (4) is positioned in the middle of the tube cavity of the needle tube A (2), and the middle partition plate (10) is an extension plate of the top surface of the inner needle tube (4).

Images