A high pressure sealed syringe

Abstract

The present invention relates to the technical field of syringes, and in particular to a high-pressure sealed syringe, comprising an injection gun housing, a syringe and a digital display control panel, wherein a push injection chamber for inserting and placing the syringe is formed inside the injection gun housing, and the inner contour of the push injection chamber is in a cylindrical shape, and a syringe clamping and positioning structure for clamping and fixing syringes of different sizes at the central axis in the push injection chamber is arranged inside the injection gun housing; a spiral winding and pressure-resistant assembly for winding and fixing syringes of different sizes is formed inside the injection gun housing; and through the mutual coordination and cooperation between the injection gun housing, the syringe clamping and positioning structure, the push injection drive assembly and the spiral winding and pressure-resistant assembly, the winding and pressure-resistant protection of syringes of different sizes can be achieved, thereby improving the pressure resistance during high-pressure injection, so that high-pressure injection can be performed even when disposable materials are used.

Description

Technical Field

[0001] The invention relates to the technical field of syringes, and in particular to a high-pressure sealed syringe. Background Art

[0002] Traditional syringes are disposable and expensive, so patients usually have to bear a lot of medical expenses. In addition, traditional syringes are made of polymer materials with poor impact resistance. The syringes are prone to bursting and leaking when under long-term high pressure and high flow rate, which poses a safety hazard to patients. Especially when syringes are reused, leakage often occurs.

[0003] A medical high-pressure syringe with publication number CN2717454Y includes an injection syringe fixed on a syringe holder by a retaining spring, a piston installed in the injection syringe for injecting liquid medicine, an injection push rod that can be linked to the piston, a sensor for detecting injection pressure, and a pressure sampling circuit electrically connected to the sensor. The sensor adopts a weighing sensor that can measure tension, one end of the weighing sensor is fixedly connected to the syringe holder, and the other end is fixedly connected to the injector body.

[0004] However, current high-pressure sealed syringes are limited by the syringe material and are often made of glass to improve pressure resistance. Repeated use increases the risk of infection, so syringes made of traditional materials need to improve their pressure resistance. Summary of the invention

[0005] The object of the present invention is to provide a high-pressure sealed syringe in order to solve the above-mentioned problems.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A high-pressure sealed syringe provided by the present invention comprises an injection gun housing, a syringe and a digital display control panel, wherein a push injection chamber for inserting and placing the syringe is formed inside the injection gun housing, and the inner contour of the push injection chamber is cylindrical, and a syringe clamping and positioning structure for clamping and fixing syringes of different sizes at the central axis of the push injection chamber is arranged inside the injection gun housing;

[0008] The inside of the injection gun housing is formed with a spiral winding and pressure-resistant component for winding and fixing syringes of different sizes;

[0009] One end of the injection gun housing is detachably provided with an end cap, and one end of the syringe passes through the end cap and is detachably connected to a connecting pipe structure;

[0010] The other end of the injection gun housing is provided with a push-injection drive assembly for realizing push-pull drive of the piston inserted into the syringe, and the injection gun housing is provided with a handle support structure on one side close to the push-injection drive assembly.

[0011] Furthermore, the spiral winding and pressure-resistant assembly includes a spiral roll, and winding structures are respectively provided at both ends of the spiral roll. The winding structure includes a winding drum, and a second servo motor for driving the rotation thereof is provided at one end of the winding drum, and the second servo motor is fixedly arranged on the inner wall of the injection gun housing through a motor seat, and a torque sensor is provided at the other end of the winding drum, and the torque sensor is fixedly arranged on the inner wall of the injection gun housing through a support seat, and the output end of the digital display control panel is electrically connected to the input end of the second servo motor, and the output end of the torque sensor is electrically connected to the input end of the digital display control panel.

[0012] Furthermore, the syringe clamping and positioning structure is provided with two distributed on both sides of the central axis of the push chamber, and the syringe clamping and positioning structure includes a first electric telescopic rod fixedly arranged on the injection gun housing, the push rod head end of the first electric telescopic rod faces the central axis of the push chamber and is connected to a splint, the cross-sectional shape of the splint is V-shaped, and the V-shaped opening of the splint is arranged toward the central axis of the push chamber, and the output end of the digital display control panel is electrically connected to the input end of the first electric telescopic rod.

[0013] Furthermore, a connecting tube is fixedly provided at the connection between the splint and the push rod head end of the first electric telescopic rod, a cover is provided on the outer detachable cover of the first electric telescopic rod, the push rod head end of the first electric telescopic rod is slidably connected to the connecting tube and is connected to each other through a first spring and an inner end surface of the connecting tube, a first pressure sensor is provided between the first spring and the inner end surface of the connecting tube, and the output end of the first pressure sensor is electrically connected to the input end of the digital display control panel.

[0014] Furthermore, the push-in drive assembly includes two second electric telescopic rods distributed on both sides of the injection gun housing, and the push rod head ends of the two second electric telescopic rods are fixedly connected to each other with end plates, and one end of the push-in rod is hingedly connected to the end plate facing the injection gun housing, and the other end of the push-in rod is connected to a rotary joint structure for cooperating with the piston, and the output end of the digital display control panel is electrically connected to the input end of the second electric telescopic rod.

[0015] Furthermore, the end of the push rod is hinged to each other through a hinge seat and the end plate, and the end of the push rod close to the hinge seat is fixedly connected to a limiting push rod, and a limiting block is fixedly arranged on the end plate. When the limiting push rod is rotated to a horizontal position and its length direction is colinear with the central axis of the push chamber, the limiting block and the limiting push rod are in contact with each other in an upper and lower position.

[0016] Furthermore, a first servo motor is provided at the end of the injection rod facing the injection gun housing, and a rotating head is connected to the output shaft end of the first servo motor. The rotating head is provided with two or more rotating clamps evenly distributed around its axis, and a rotating groove for cooperating with the rotating clamp is provided on the piston. A rubber plug is provided on the outer side of the piston, and the output end of the digital display control panel is electrically connected to the input end of the first servo motor.

[0017] Furthermore, an embedding hole is provided at the center position of the rotating head, the embedding hole is open toward one end of the injection gun housing, a contact head is slidably provided inside the open end of the embedding hole, a second pressure sensor is provided on the inner end surface of the embedding hole, a second spring is provided between the contact head and the second pressure sensor, and the output end of the second pressure sensor is electrically connected to the input end of the digital display control panel.

[0018] Furthermore, a threaded connector for threaded connection with the injection gun housing is provided on one side of the end cover, a first tapered hole is provided on the side opposite to the threaded connector, a second tapered hole is provided on the side opposite to the end cover, the tip of the first tapered hole and the tip of the second tapered hole are arranged opposite to each other and are connected to each other through the positioning hole, a needle is provided at one end of the syringe, an end column for cooperating and connecting with the positioning hole is provided on the outside of the needle, the connecting pipe structure includes a spiral pipe, a first pipe joint and a second pipe joint are respectively provided at both ends of the spiral pipe, and a sealing gasket for abutting and sealing with the end column is provided at the end of the first pipe joint.

[0019] Furthermore, the handle mounting structure includes a bracket and a handle, the outer contour of the bracket is U-shaped, a non-slip pad is provided at the lower end of the bracket, the U-shaped opening end of the bracket is rotatably connected to the outer middle position of the injection gun housing, and a control button is provided on the handle.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Through the coordination and cooperation between the injection gun housing, syringe clamping and positioning structure, push injection drive assembly and spiral winding and pressure-resistant assembly, syringes of different sizes can be wound and compressed, thereby improving the pressure resistance during high-pressure injection, so that high-pressure injection can also be performed using disposable materials;

[0022] 2. The syringe clamping and positioning structure can clamp and fix syringes of different sizes, ensuring that the central axis of the syringe and the central axis of the injection gun housing correspond to each other, so that the injection drive assembly can be better matched for the injection operation;

[0023] 3. The push rod and the end plate are hinged to each other, which can facilitate the loading and removal of the syringe in the injection gun housing, and the rotary card plate is inserted into the rotary card slot, which can cooperate with the second electric telescopic rod to realize the pulling and pulling operation of the piston;

[0024] 4. While the handle is convenient for handheld operation, the bracket and the handle can also cooperate with each other to achieve triangular support, thereby achieving placement on a horizontal plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0027] Figure 2 The present invention Figure 1 Schematic diagram of the left view structure;

[0028] Figure 3 The present invention Figure 1 A schematic diagram of a three-dimensional structure in a first direction;

[0029] Figure 4 The present invention Figure 2 AA cross-sectional structural diagram;

[0030] Figure 5 The present invention Figure 4 A schematic diagram of the local enlarged structure at B;

[0031] Figure 6 The present invention Figure 4 A schematic diagram of the local enlarged structure at C;

[0032] Figure 7 The present invention Figure 4 A schematic diagram of the local enlarged structure at D;

[0033] Figure 8 The present invention Figure 4 A schematic diagram of the local enlarged structure at E;

[0034] Fig. 9 The present invention Figure 1 A schematic diagram of a three-dimensional structure in a second direction;

[0035] Fig.10 It is a schematic diagram of the three-dimensional structure of the spiral winding compression-resistant component of the present invention.

[0036] The reference numerals are as follows: 1. Injection gun housing; 101. End cover; 102. Threaded connector; 103. Bracket; 104. Anti-slip sleeve; 105. Grip; 106. Control button; 107. First tapered hole; 108. Positioning hole; 109. Second tapered hole; 110. Introduction sleeve; 2. Syringe clamping and positioning structure; 201. First electric telescopic rod; 202. Cover; 203. Clamping plate; 204. Connecting tube; 205. First pressure sensor; 206. First spring; 3. Connecting pipe structure; 301. Spiral pipe; 302. First pipe joint; 303. Second pipe joint; 304. Sealing gasket; 4. Push injection drive assembly; 4 01. Second electric telescopic rod; 402. First servo motor; 403. Rotary rotary head; 404. Injection rod; 405. End plate; 406. Contact head; 407. Rotary card plate; 408. Second spring; 409. Second pressure sensor; 410. Articulated seat; 411. Limit block; 412. Limit push rod; 5. Spiral winding anti-pressure assembly; 501. Spiral roll; 502. Winding drum; 503. Second servo motor; 504. Torque sensor; 505. Support seat; 506. Motor seat; 6. Syringe; 601. End column; 602. Needle; 603. Piston; 604. Rotary card slot; 605. Rubber plug; 7. Digital display control panel. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-Figure 10 As shown, the present invention provides a high-pressure sealed syringe, including an injection gun housing 1, a syringe 6 and a digital display control panel 7, a push injection chamber for inserting the syringe 6 is formed inside the injection gun housing 1, the inner contour of the push injection chamber is in a cylindrical shape, and a syringe clamping and positioning structure 2 for clamping and fixing syringes 6 of different sizes at the central axis in the push injection chamber is arranged inside the injection gun housing 1; a spiral winding and pressure-resistant component 5 for winding and fixing syringes 6 of different sizes is formed inside the injection gun housing 1; an end cap 101 is detachably provided at one end of the injection gun housing 1, and one end of the syringe 6 passes through the end cap 101 and is detachably connected to a connecting tube structure 3; a push injection drive component 4 for pushing and pulling the piston 603 in the syringe 6 is arranged at the other end of the injection gun housing 1, and a handle support structure is arranged on the side of the injection gun housing 1 close to the push injection drive component 4.

[0039] See the instruction manual Figure 4and Fig.10 As shown, the spiral winding and pressure-resistant assembly 5 includes a spiral roll 501, which is made of steel strip material. Winding structures are respectively arranged at both ends of the spiral roll 501. The winding structure includes: the spiral roll 501 is wound on a winding drum 502, and one end of the winding drum 502 is provided with a second servo motor 503 for driving its rotation. The second servo motor 503 is fixedly arranged on the inner wall of the injection gun housing 1 through a motor seat 506. A torque sensor 504 is arranged on the other end of the winding drum 502. The torque sensor 504 is fixedly arranged on the inner wall of the injection gun housing 1 through a support seat 505. The output end of the digital display control panel 7 is electrically connected to the input end of the second servo motor 503, and the output end of the torque sensor 504 is electrically connected to the input end of the digital display control panel 7. In actual applications, the spiral winding pressure-resistant component 5 is used to tighten and protect syringes 6 of different sizes, improve the pressure resistance of the syringe 6, and thus avoid damage to the syringe 6 under high-pressure injection conditions. It can also be used for high-pressure injection of syringes 6 made of ordinary materials such as plastic and syringes 6 of different sizes.

[0040] See the instruction manual Figure 4 and Figure 6 As shown, the syringe clamping and positioning structure 2 is provided with two distributed on both sides of the central axis of the push chamber, and the syringe clamping and positioning structure 2 includes a first electric telescopic rod 201 fixedly arranged on the injection gun housing 1, and the push rod head end of the first electric telescopic rod 201 faces the central axis of the push chamber and is connected to a splint 203, and the cross-sectional shape of the splint 203 is V-shaped, and the V-shaped opening of the splint 203 is arranged toward the central axis of the push chamber, and the output end of the digital display control panel 7 is electrically connected to the input end of the first electric telescopic rod 201. A connecting tube 204 is fixedly provided at the connection between the clamping plate 203 and the push rod head end of the first electric telescopic rod 201, and a cover 202 is provided on the outer detachable cover of the first electric telescopic rod 201. The push rod head end of the first electric telescopic rod 201 is slidably connected to the connecting tube 204 and connected to each other with the inner end surface of the connecting tube 204 through the first spring 206. A first pressure sensor 205 is provided between the first spring 206 and the inner end surface of the connecting tube 204, and the output end of the first pressure sensor 205 is electrically connected to the input end of the digital display control panel 7. Through the above-mentioned specific structural design, the syringe clamping and positioning structure 2 can realize the function of clamping and fixing syringes 6 of different sizes, ensuring that the central axis of the syringe 6 corresponds to the central axis of the injection gun housing 1, so as to better cooperate with the push drive assembly 4 to perform the push operation.

[0041] See the instruction manual Figure 1 , Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, the push drive assembly 4 includes two second electric telescopic rods 401 distributed on both sides of the injection gun housing 1, and the push rod heads of the two second electric telescopic rods 401 are fixedly connected to each other with an end plate 405, and one end of the push rod 404 is hingedly connected to the end plate 405 facing the injection gun housing 1, and the other end of the push rod 404 is connected to a rotating joint structure for cooperating with the piston 603, and the output end of the digital display control panel 7 is electrically connected to the input end of the second electric telescopic rod 401. The end of the push rod 404 is hinged to each other with the end plate 405 through a hinge seat 410, and the end of the push rod 404 close to the hinge seat 410 is fixedly connected to a limit stopper 412, and a limit block 411 is fixedly arranged on the end plate 405. When the limit stopper 412 rotates to a horizontal position and its length direction is colinear with the central axis of the push chamber, the limit block 411 and the limit stopper 412 are in an upper and lower position and abut against each other. When loading the syringe 6, the push rod of the second electric telescopic rod 401 first reaches the maximum stroke, and then the push rod 404 is hinged and rotated relative to the end plate 405, so that the length direction of the push rod 404 and the axial direction of the injection gun housing 1 are perpendicular to each other. After loading the syringe 6, the push rod 404 is hinged and rotated relative to the end plate 405 to reset, and the limit block 411 and the limit abutment rod 412 abut against each other.

[0042] A first servo motor 402 is provided at the end of the push rod 404 facing the injection gun housing 1, and a rotating head 403 is connected to the output shaft end of the first servo motor 402. The rotating head 403 is provided with two or more rotating clamping plates 407 evenly distributed around its axis, and the outer contour of the rotating clamping plate 407 is circular sector-shaped. A rotating clamping groove 604 for cooperating with the rotating clamping plate 407 is provided on the piston 603, and a rubber plug 605 is provided on the outer side of the piston 603. The output end of the digital display control panel 7 is electrically connected to the input end of the first servo motor 402.

[0043] An embedding hole is provided at the center of the rotating head 403, and the embedding hole is open toward one end of the injection gun housing 1. A contact head 406 is slidably arranged inside the open end of the embedding hole, and a second pressure sensor 409 is arranged on the inner end surface of the embedding hole. A second spring 408 is arranged between the contact head 406 and the second pressure sensor 409, and the output end of the second pressure sensor 409 is electrically connected to the input end of the digital display control panel 7.

[0044] A threaded connector 102 for threaded connection with the injection gun housing 1 is provided on one side of the end cover 101, a first tapered hole 107 is provided on the side opposite to the threaded connector 102, a second tapered hole 109 is provided on the side opposite to the end cover 101, the tip of the first tapered hole 107 and the tip of the second tapered hole 109 are arranged opposite to each other and are connected to each other through the positioning hole 108, a needle 602 is provided at one end of the syringe 6, an end column 601 for cooperating and connecting with the positioning hole 108 is provided on the outer side of the needle 602, the connecting pipe structure 3 includes a spiral pipe 301, and the first pipe joint 302 and the second pipe joint 303 are respectively provided at both ends of the spiral pipe 301, and a sealing gasket 304 for abutting and sealing with the end column 601 is provided at the end of the first pipe joint 302.

[0045] The handle mounting structure includes a bracket 103 and a handle 105. The bracket 103 has a U-shaped profile. The lower end of the bracket 103 is provided with an anti-slip pad 104. The U-shaped opening end of the bracket 103 is rotatably connected to the middle position of the outer side of the injection gun housing 1. The handle 105 is provided with a control button 106. Through the above-mentioned specific structural design, the control button 106 is used to control the extension and retraction of the push rod of the second electric telescopic rod 401, and has a higher level than the digital display control panel 7 for the second electric telescopic rod 401. When the digital display control panel 7 controls the extension and retraction of the second electric telescopic rod 401, the control button 106 can give priority to controlling the second electric telescopic rod 401. In addition, the bracket 103 and the handle 105 cooperate with each other to realize triangular support, thereby realizing placement on a horizontal plane.

[0046] Working principle and technical effect of the present invention:

[0047] When in use, hold the handle 105, turn one end of the injection gun housing 1 provided with the end cover 101 downward, then insert the syringe 6 from the upper port of the injection gun housing 1 at this time, and the end column 601 is inserted into the positioning hole 108, and the spiral winding and pressure-resistant component 5 realizes the positioning and tightening of the syringe 6. Specifically, the two second servo motors 503 of the spiral winding and pressure-resistant component 5 respectively drive the corresponding winding drum 502 to rotate, and pull and wind from both ends of the spiral roll 501, so that the inner diameter of the spiral roll 501 gradually shrinks and fits with the outer wall of the syringe 6, and when continuing to tighten, it is blocked by the syringe 6, and the winding drum 502 stops rotating. At this time, the torque sensor 504 can detect and feedback the winding force of the spiral roll 501, and feedback control the second servo motor 503 through the digital display control panel 7. The second servo motor 503 stops driving the winding drum 502 to rotate, and then the syringe clamping and positioning structure 2 realizes the syringe 6. After clamping and fixing, the push rod of the first electric telescopic rod 201 extends to drive the clamping plate 203 to clamp the syringe 6. In addition, the first pressure sensor 205 and the first spring 206 cooperate to realize automatic feedback control during clamping. Then the injection rod 404 rotates from a state perpendicular to the axial direction of the injection gun housing 1 to a state consistent with the axial direction of the injection gun housing 1. The push rod of the second electric telescopic rod 401 drives the rotary head 403 to abut against the piston 603, and cooperates with the first servo motor 402 to drive the rotary head 403 to rotate to clamp the rotary card plate 407 into the rotary card slot 604. Cooperate with the contact head 406, the second spring 408 and the second pressure sensor 409 to realize feedback judgment on the rotary card plate 407 being clamped into the rotary card slot 604, so that during the driving process of the second electric telescopic rod 401, the piston 603 and the rubber plug 605 can move in the syringe 6 to realize the injection and withdrawal operations of the syringe 6.

[0048] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A high pressure sealed syringe, characterized in that: The injection gun comprises an injection gun housing (1), a syringe (6) and a digital display control panel (7); the injection gun housing (1) has an injection chamber formed inside for inserting and placing the syringe (6); the inner contour of the injection chamber is in the shape of a cylinder; the injection gun housing (1) is provided with a syringe clamping and positioning structure (2) for clamping and fixing syringes (6) of different sizes at the central axis of the injection chamber; A spiral winding and pressure-resistant assembly (5) is formed inside the injection gun housing (1) for winding and fixing syringes (6) of different sizes; One end of the injection gun housing (1) is detachably provided with an end cover (101), and one end of the syringe (6) passes through the end cover (101) and is detachably connected to a connecting tube structure (3); The other end of the injection gun housing (1) is provided with a push-injection drive assembly (4) for implementing push-pull drive of the piston (603) in the syringe (6), and a handle support structure is provided on the side of the injection gun housing (1) close to the push-injection drive assembly (4); The push-injection drive assembly (4) comprises two second electric telescopic rods (401) distributed on both sides of the injection gun housing (1); the push rod heads of the two second electric telescopic rods (401) are fixedly connected to each other with an end plate (405); one end of the push-injection rod (404) is hingedly connected to the side of the end plate (405) facing the injection gun housing (1); the other end of the push-injection rod (404) is connected to a rotary joint structure for cooperating with the piston (603); and the output end of the digital display control panel (7) is electrically connected to the input end of the second electric telescopic rod (401); A first servo motor (402) is arranged at the end of the injection rod (404) facing the injection gun housing (1); an output shaft end of the first servo motor (402) is connected to a rotary head (403); the rotary head (403) is provided with two or more rotary clamping plates (407) evenly distributed around its axis; a rotary clamping groove (604) for cooperating with the rotary clamping plate (407) is provided on the piston (603); a rubber plug (605) is sleeved on the outer side of the piston (603); and an output end of the digital display control panel (7) is electrically connected to an input end of the first servo motor (402); When loading the syringe (6), the push rod of the second electric telescopic rod (401) first reaches the maximum stroke, and then the push rod (404) is hingedly rotated relative to the end plate (405), so that the length direction of the push rod (404) and the axial direction of the injection gun housing (1) are perpendicular to each other. After loading the syringe (6), the push rod (404) is hingedly rotated relative to the end plate (405) to reset, and the limit block (411) and the limit abutment rod (412) abut against each other.

2. A high pressure sealed syringe according to claim 1, characterized in that: The spiral winding and pressure-resistant assembly (5) comprises a spiral roll (501), and winding structures are respectively arranged at both ends of the spiral roll (501), and the winding structure comprises a winding drum (502), and a second servo motor (503) for driving the winding drum (502) to rotate is arranged at one end of the winding drum (502), and the second servo motor (503) is fixedly arranged on the inner side wall of the injection gun housing (1) through a motor seat (506), and a torque sensor (504) is arranged at the other end of the winding drum (502), and the torque sensor (504) is fixedly arranged on the inner side wall of the injection gun housing (1) through a support seat (505), and the output end of the digital display control panel (7) is electrically connected to the input end of the second servo motor (503), and the output end of the torque sensor (504) is electrically connected to the input end of the digital display control panel (7).

3. A high pressure sealed syringe according to claim 1, characterized in that: The syringe clamping and positioning structure (2) is provided with two arranged on both sides of the central axis of the push injection chamber, the syringe clamping and positioning structure (2) comprises a first electric telescopic rod (201) fixedly arranged on the injection gun housing (1), the push rod head end of the first electric telescopic rod (201) faces the central axis of the push injection chamber and is connected to a clamping plate (203), the cross-section of the clamping plate (203) is V-shaped, the V-shaped opening of the clamping plate (203) is arranged towards the central axis of the push injection chamber, and the output end of the digital display control panel (7) is electrically connected to the input end of the first electric telescopic rod (201).

4. A high pressure sealed syringe according to claim 3, characterized in that: A connecting tube (204) is fixedly provided at the connection between the clamping plate (203) and the push rod head end of the first electric telescopic rod (201); a cover (202) is provided on the outer detachable cover of the first electric telescopic rod (201); the push rod head end of the first electric telescopic rod (201) is slidably connected to the inside of the connecting tube (204) and is connected to the inner end surface of the connecting tube (204) via a first spring (206); a first pressure sensor (205) is provided between the first spring (206) and the inner end surface of the connecting tube (204); and an output end of the first pressure sensor (205) is electrically connected to an input end of the digital display control panel (7).

5. A high pressure sealed syringe according to claim 1, characterized in that: The end of the push rod (404) is hinged to the end plate (405) via a hinge seat (410), and the end of the push rod (404) close to the hinge seat (410) is fixedly connected to a limit stop rod (412). A limit block (411) is fixedly arranged on the end plate (405). When the limit stop rod (412) is rotated to a horizontal position and its length direction is colinear with the central axis of the push chamber, the limit block (411) and the limit stop rod (412) are in contact with each other in an upper and lower position.

6. A high pressure sealed syringe according to claim 1, characterized in that: An embedding hole is provided at the center of the rotating head (403), the embedding hole is open toward one end of the injection gun housing (1), a contact head (406) is slidably arranged inside the open end of the embedding hole, a second pressure sensor (409) is arranged on the inner end surface of the embedding hole, a second spring (408) is arranged between the contact head (406) and the second pressure sensor (409), and the output end of the second pressure sensor (409) is electrically connected to the input end of the digital display control panel (7).

7. A high pressure sealed syringe according to claim 1, characterized in that: A threaded connector (102) for threaded connection with the injection gun housing (1) is provided on one side of the end cover (101); a first tapered hole (107) is provided on the side of the end cover (101) opposite to the threaded connector (102); a second tapered hole (109) is provided on the side of the threaded connector (102) opposite to the end cover (101); the tip of the first tapered hole (107) and the tip of the second tapered hole (109) are arranged opposite to each other and are connected to each other via a positioning hole (108); A needle (602) is provided at one end of the syringe (6), and an end column (601) for cooperating and connecting with the positioning hole (108) is provided on the outer side of the needle (602). The connecting pipe structure (3) comprises a spiral pipe (301), and a first pipe joint (302) and a second pipe joint (303) are provided at both ends of the spiral pipe (301), respectively. A sealing gasket (304) for abutting and sealing with the end column (601) is provided at the end of the first pipe joint (302).

8. A high pressure sealed syringe according to claim 1, characterized in that: The handle mounting structure comprises a bracket (103) and a handle (105); the bracket (103) has a U-shaped profile; a non-slip pad (104) is provided at the lower end of the bracket (103); the U-shaped opening end of the bracket (103) is rotatably connected to the middle position of the outer side of the injection gun housing (1); and a control button (106) is provided on the handle (105).

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