Aortic valve balloon dilatation pressure pump

Abstract

The utility model discloses an aortic valve balloon dilatation pressure pump which comprises a needle cylinder, a piston rod, a piston, a sealing ring, a pressure gauge, a rotary knob, a sleeve, a locking piece, a connecting plate and a rotating shaft. An opening groove is concavely formed in the outer side wall of the upper end of the locking piece, short shafts are convexly arranged on the two side walls of the upper end of the connecting plate respectively, first through holes are concavely formed in the two side walls of the upper end of the locking piece respectively, the short shafts are rotatably embedded in the first through holes respectively, and second through holes are concavely formed in the two side walls of the second containing groove respectively. A third through hole is concavely formed in the side wall of the lower end part of the connecting plate, the rotating shaft sequentially penetrates through the second through hole, the upper end part of the through groove and the third through hole, a wedge-shaped surface is arranged on the inner peripheral wall of the upper end part of the through groove, and the rotating shaft can slide along the wedge-shaped surface. According to the technical scheme, the pressure pump outputs high pressure and adjusts the pressure more conveniently and quickly.

Description

Technical Field

[0001] The utility model relates to the technical field of balloon dilatation pressure pumps, in particular to an aortic valve balloon dilatation pressure pump. Background Art

[0002] Balloon dilatation pressure pump is a device used to dilate cardiovascular balloon angioplasty. It mainly consists of a pressure pump and a pipe connected to the balloon. The function and purpose of the balloon dilatation pressure pump is to dilate and inflate the balloon. Balloon dilatation pressure pumps are usually used in the medical field to expand and fix vascular stents, braided hoses, etc. In addition, balloon dilatation pressure pumps can also be used in industries, laboratories, etc. to inflate and dilate gas sealing devices, pipelines, etc.

[0003] The working principle of the balloon dilatation pressure pump is to increase the pressure inside the balloon by injecting liquid into the balloon, thereby expanding the balloon and dilating the blood vessels, which is used to treat narrowed or blocked blood vessels.

[0004] Balloon dilatation pressure pumps are widely used in interventional cardiology and vascular surgery. They can be used to treat heart disease, coronary artery stenosis, arteriosclerosis and other diseases. During surgery, doctors can achieve precise vascular dilation by controlling the balloon dilatation pressure pump.

[0005] However, the pressure pumps currently available on the market for aortic valve balloon dilatation mainly control the pressure by pressing the handle part on the outside of the rack to control the state of the threaded connection between the rack and the syringe. The pressure pump that only uses a rack control has a small distance between the buds on the rack, which directly causes slow rotation and pressurization, which is very time-consuming and cannot quickly output very high pressure, affecting the progress of the operation. During the pressurization process, the piston rod needs to be rotated repeatedly, which easily causes hand fatigue. In addition, the air outlet of the syringe is at the top. When ultra-high pressure needs to be output, it is not convenient to push the top of the syringe onto the table to complete the pressure output with one press. Utility Model Content

[0006] The main purpose of the utility model is to provide an aortic valve balloon dilatation pressure pump, aiming to solve the technical problem that the existing pressure pumps used for aortic valve balloon dilatation cannot output very high pressure quickly, thus affecting the progress of the operation.

[0007] To achieve the above-mentioned purpose, the aortic valve balloon dilatation pressure pump proposed in the utility model includes a syringe, a piston rod, a piston, a sealing ring, a pressure gauge, a knob, a sleeve, a locking piece, a connecting plate, a rotating shaft and a braided hose. The front end of the piston rod can be slidably arranged in the syringe, and the piston can be slidably arranged in the syringe. The sealing ring is arranged on the outer peripheral wall of the piston, and the outer peripheral wall of the sealing ring is slidably abutted against the inner peripheral wall of the syringe. The side wall of the front end of the syringe is convexly provided with an air outlet. The force gauge is detachably arranged on the side wall of the front end of the syringe, and the pressure gauge is connected to the syringe, the knob is arranged at the rear end of the piston rod, the outer peripheral wall of the rear end of the syringe is recessed with a first receiving groove, the sleeve is detachably embedded in the first receiving groove, the upper end of the sleeve is recessed with a second receiving groove, the lower end of the locking member is rotatably embedded in the second receiving groove, the front end wall of the lower end of the locking member is recessed with a through groove, the inner bottom wall of the through groove is provided with an internal thread, the The outer peripheral wall of the piston rod is provided with an external thread, and the piston rod can be movably arranged in the through groove up and down, and the external thread of the piston rod can be screwed on the internal thread of the through groove, the outer side wall of the upper end of the locking piece is recessed with an open groove, and the two side walls of the upper end of the connecting plate are respectively convexly provided with a short shaft, and the two side walls of the upper end of the locking piece are respectively recessed with a first through hole, and the short shaft is respectively rotatably embedded in the first through hole, and the two side walls of the second accommodating groove are recessed with a second through hole, and the side wall of the lower end of the connecting plate is recessed with A third through hole, the rotating shaft is sequentially arranged in the second through hole, the upper end of the through groove and the third through hole, the inner circumferential wall of the upper end of the through groove is provided with a wedge surface, and the rotating shaft can be slidably arranged along the wedge surface, by rotating the locking piece to the right, the external thread of the piston rod is engaged with the internal thread of the through groove, and the relative position between the piston rod and the syringe is locked, and by rotating the locking piece to the left, the external thread of the piston rod is separated from the internal thread of the through groove, so that the piston rod is unlocked, and one end of the braided hose is connected to the air outlet.

[0008] Optionally, the front end wall and the rear end wall of the upper end of the first accommodating groove are respectively provided with an elastic limiting plate, and the elastic limiting plate can be arranged to abut against the rear end wall of the locking member, and the elastic limiting plate is used to limit the position of the locking member.

[0009] Optionally, a first limit plate is protruded from the left and right inner walls of the upper end of the first accommodating groove, and a second limit plate is protruded from the left and right outer walls of the upper end of the sleeve, and the lower end wall of the first limit plate is respectively abutted against the upper end wall of the second limit plate.

[0010] Optionally, a plug-in groove is recessed at the rear end of the piston, and a plug-in portion is provided at the front end of the piston rod, and the plug-in portion is detachably embedded in the plug-in groove.

[0011] Optionally, the inner circumferential wall of the plug-in slot is concavely provided with a plurality of first limiting grooves along the circumferential direction, and the outer circumferential wall of the plug-in portion is convexly provided with a plurality of limiting flanges, and the limiting flanges are detachably embedded in the first limiting grooves.

[0012] Optionally, a plurality of sealing rings are provided, and a plurality of second limiting grooves are recessed on the outer circumferential wall of the piston along the circumferential direction, and the sealing rings are respectively detachably embedded in the second limiting grooves.

[0013] Optionally, two side walls of the rear end of the syringe are respectively provided with a handle lug.

[0014] Optionally, the capacity of the syringe is 50mL-70mL.

[0015] Optionally, the braided hose comprises a polyurethane layer and a nylon filament layer, the polyurethane layer is provided with two layers, and the nylon filament layer is provided between the two polyurethane layers.

[0016] The technical solution of the utility model has the following beneficial effects:

[0017] 1. The technical solution of the utility model is that a first accommodating groove is recessed through the outer peripheral wall of the rear end of the syringe, the sleeve is detachably embedded in the first accommodating groove, a second accommodating groove is recessed at the upper end of the sleeve, the lower end of the locking member is rotatably embedded in the second accommodating groove, a through groove is recessed at the front end wall of the lower end of the locking member, an internal thread is provided on the inner bottom wall of the through groove, an external thread is provided on the outer peripheral wall of the piston rod, the piston rod can be movably inserted in the through groove up and down, and the external thread of the piston rod can be screwed on the internal thread of the through groove, and the upper end of the locking member The outer wall of the end is recessed with an open groove, and the two side walls of the upper end of the connecting plate are respectively convexly provided with a short shaft, and the two side walls of the upper end of the locking piece are respectively recessed with a first through hole, and the short shaft is rotatably embedded in the first through hole, and the two side walls of the second accommodating groove are recessed with a second through hole, and the side wall of the lower end of the connecting plate is recessed with a third through hole, and the rotating shaft is sequentially penetrated through the second through hole, the upper end of the through groove and the third through hole, and the inner peripheral wall of the upper end of the through groove is provided with a wedge-shaped surface, and the rotating shaft can be slidably arranged along the wedge-shaped surface, and the locking piece is locked by rotating rightward. The locking piece is used to make the external thread of the piston rod mesh with the internal thread of the through groove, and the relative position between the piston rod and the syringe is locked. By turning the locking piece to the left, the external thread of the piston rod is separated from the internal thread of the through groove, and the piston rod is unlocked. When in use, the piston rod can be quickly pressed to advance to a certain position, and then the locking piece is turned to the right to make the external thread of the piston rod mesh with the internal thread of the through groove, thereby locking the relative position between the piston rod and the syringe to prevent the piston rod from retreating, making the pressure output invalid and affecting the operation. The pressure value output by the pressure pump can be intuitively displayed by the pressure gauge. When the output pressure is not enough, the piston rod can be moved forward by manually turning the knob to accurately adjust the output pressure, so that the pressure output of the pressure pump can be controlled, thereby making the pressure output and pressure adjustment control operation of the pressure pump more convenient and quick, and no electric drive is required. The pressure output has the advantages of flexibility and controllability. During the operation, the doctor can achieve precise aortic valve balloon dilatation by controlling the balloon dilatation pressure pump, and ensure the safety and effectiveness of the operation by controlling the pressure.

[0018] 2. By setting the air outlet on the side wall of the front end of the syringe, the pressure pump can push the top of the syringe onto the table when outputting ultra-high pressure, so that the ultra-high pressure output can be completed by one press without pressing the braided hose and causing the braided hose to be blocked, making it more convenient for the pressure pump to output high pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of an aortic valve balloon dilatation pressure pump according to an embodiment of the utility model;

[0021] Figure 2 This is a partial structural schematic diagram of an aortic valve balloon dilatation pressure pump according to an embodiment of the utility model;

[0022] Figure 3 This is another partial structural schematic diagram of an aortic valve balloon dilatation pressure pump according to an embodiment of the utility model;

[0023] Figure 4 This is a partially exploded structural schematic diagram of an aortic valve balloon dilatation pressure pump according to an embodiment of the utility model;

[0024] Figure 5 This is another partial structural schematic diagram of an aortic valve balloon dilatation pressure pump according to an embodiment of the utility model;

[0025] Figure 6 This is another partially exploded structural diagram of an aortic valve balloon dilatation pressure pump according to an embodiment of the utility model;

[0026] Figure 7 This is another partially exploded structural schematic diagram of an aortic valve balloon dilatation pressure pump according to an embodiment of the utility model.

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] The utility model provides an aortic valve balloon dilatation pressure pump.

[0032] like Figures 1 to 7As shown, in one embodiment of the utility model, the aortic valve balloon dilatation pressure pump includes a syringe 101, a piston rod 102, a piston 103, a sealing ring 104, a pressure gauge 105, a knob 106, a sleeve 107, a locking member 108, a connecting plate 109, a rotating shaft (not shown) and a braided hose 200. The front end of the piston rod 102 can be slidably arranged in the syringe 101, and the piston 103 can be slidably arranged in the syringe 101. The sealing ring 104 is hooped on the outer peripheral wall of the piston 103, and the outer peripheral wall of the sealing ring 104 is slidably abutted against the inner peripheral wall of the syringe 101. The side wall of the front end of the syringe 101 is convexly provided with an air outlet 1 011, the pressure gauge 105 is detachably arranged on the side wall of the front end of the syringe 101, and the pressure gauge 105 is connected to the syringe 101, the knob 105 is arranged at the rear end of the piston rod, the outer peripheral wall of the rear end of the syringe 101 is recessed with a first accommodating groove 1012, the sleeve 107 is detachably embedded in the first accommodating groove 1012, the upper end of the sleeve 107 is recessed with a second accommodating groove 1071, the lower end of the locking member 108 is rotatably embedded in the second accommodating groove 1071, the front end wall of the lower end of the locking member 108 is recessed with a through groove 1081, the inner bottom wall of the through groove 1081 is provided with an internal thread 1082, and the piston rod 102 is provided with a through groove 1081. The outer peripheral wall is provided with an external thread, the piston rod 102 can be movably arranged in the through groove 1081 up and down, and the external thread of the piston rod 102 can be screwed on the internal thread 1082 of the through groove 1081, the outer wall of the upper end of the locking member 108 is recessed with an opening groove 1083, and the two side walls of the upper end of the connecting plate 109 are respectively convexly provided with a short shaft 1091, and the two side walls of the upper end of the locking member 108 are respectively recessed with a first through hole 1084, and the short shaft 1091 is respectively rotatably embedded in the first through hole 1084, and the two side walls of the second accommodating groove 1071 are respectively recessed with a second through hole 1072, and the side wall of the lower end of the connecting plate 109 is recessed with a third through hole 1 092, the rotating shaft is sequentially arranged in the second through hole 1072, the upper end of the through groove 1081 and the third through hole 1092, the inner peripheral wall of the upper end of the through groove 1081 is provided with a wedge surface 1085, and the rotating shaft can be slidably arranged along the wedge surface 1085, and the outer thread of the piston rod 102 is engaged with the inner thread 1082 of the through groove 1081 by rotating the locking piece 108 to the right, and the relative position between the piston rod 102 and the syringe 101 is locked, and the outer thread of the piston rod 102 is separated from the inner thread 1082 of the through groove 1081 by rotating the locking piece 108 to the left, so that the piston rod 102 is unlocked, and one end of the braided hose 200 is connected to the air outlet 1011.

[0033] Specifically, the front end wall and the rear end wall of the upper end of the first accommodating groove 1012 are respectively protruded with an elastic limiting plate 1013, and the elastic limiting plate 1013 can be set in abutment with the rear end wall of the locking member 108. The elastic limiting plate 1013 is used to limit the position of the locking member 108. When the locking member is bent to the right to lock the piston rod, the position of the locking member can be fixed by the elastic limiting plate, so that the piston rod can be securely and stably locked, the output pressure is stabilized, and the locking member is prevented from automatically unlocking.

[0034] Specifically, a first limiting plate 1014 is respectively provided on the left and right inner walls of the upper end portion of the first accommodating groove 1012, and a second limiting plate 1073 is respectively provided on the left and right outer walls of the upper end portion of the sleeve 107. The lower end wall of the first limiting plate 1014 is respectively abutted against the upper end wall of the second limiting plate 1073, which limits the sleeve and prevents it from loosening from the first accommodating groove. At the same time, it stops the sleeve from rotating on its own, which affects the locking of the piston rod, causes the pressure output to fail, and affects the operation.

[0035] Specifically, the rear end of the piston 103 is recessed with an insertion groove 1031, and the front end of the piston rod 102 is provided with an insertion portion 1021. The insertion portion 1021 is detachably embedded in the insertion groove 1031, making the installation between the piston and the piston rod more convenient and quick.

[0036] Specifically, the inner wall of the plug-in groove 1031 is concavely provided with a plurality of first limiting grooves 1032 along the circumferential direction, and the outer wall of the plug-in portion 1021 is convexly provided with a plurality of limiting flanges 1022. The limiting flanges 1022 are detachably embedded in the first limiting grooves 1032 to play a limiting role and prevent the piston from loosening from the piston rod.

[0037] Specifically, a plurality of sealing rings 104 are provided, and a plurality of second limiting grooves 1033 are recessed on the outer peripheral wall of the piston 103 along the circumferential direction. The sealing rings 104 are respectively detachably embedded in the second limiting grooves 1033, thereby achieving a reliable sealing effect.

[0038] Specifically, the two side walls of the rear end of the syringe 102 are respectively provided with a handle lug 1015 to facilitate pressing the piston rod to output pressure.

[0039] Specifically, the capacity of the syringe 101 is 50 mL-70 mL, and the pressure output by the syringe can reach between 15 PS I and 40 PS I.

[0040] Specifically, a lever 1086 is protruded from the rear end wall of the upper end of the locking member 108 to facilitate moving the locking member left and right to lock and unlock the piston rod.

[0041] Specifically, a V-shaped groove 1093 is recessed on the upper end wall of the connecting plate 109. The V-shaped groove allows the connecting plate to be retractable, making the installation of the connecting plate more convenient.

[0042] Specifically, the inner diameter of the syringe is 21.3 mm, the outer diameter of the syringe is 25.5 mm, the length of the syringe is 260.5 mm, the outer diameter of the piston rod is 12.2 mm, the length of the piston rod is 245.7 mm, the outer diameter of the piston is 21 mm, and the length of the piston is 19 mm.

[0043] Specifically, the braided hose 200 includes a polyurethane layer and a nylon layer. The polyurethane layer is provided with two layers, and the nylon layer is provided between the two polyurethane layers. The nylon layer plays a reinforcing role, which can ensure that the braided hose is resistant to high pressure, elastic, not too hard, and highly transparent, and the pressure can reach between 15PS I-40PS I.

[0044] During specific use, the piston rod can be quickly pressed forward to a certain position, and then the locking piece can be turned to the right to engage the external thread of the piston rod with the internal thread of the through groove, thereby locking the relative position between the piston rod and the syringe to prevent the piston rod from retreating, making the pressure output invalid and affecting the operation. The pressure value output by the pressure pump can be intuitively displayed on the pressure gauge. When the output pressure is not enough, the piston rod can be moved forward by manually turning the knob to accurately adjust the output pressure, so that the pressure output by the pressure pump can be controlled, thereby making the pressure output and pressure adjustment control operations of the pressure pump more convenient and quick, and no electric drive is required. The pressure output has the advantages of flexibility and controllability. During the operation, the doctor can achieve precise aortic valve balloon dilation by controlling the balloon dilation pressure pump, and ensure the safety and effectiveness of the operation by controlling the pressure. When pressurizing, the top of the syringe can be pushed to the table to complete the ultra-high pressure output with one press, making it more convenient for the pressure pump to output high pressure.

[0045] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An aortic valve balloon dilatation pressure pump, characterized in that: The invention comprises a syringe, a piston rod, a piston, a sealing ring, a pressure gauge, a knob, a sleeve, a locking piece, a connecting plate, a rotating shaft and a braided hose, wherein the front end portion of the piston rod can be slidably arranged in the syringe, the piston can be slidably arranged in the syringe, the sealing ring is arranged on the outer peripheral wall of the piston, and the outer peripheral wall of the sealing ring is slidably abutted against the inner peripheral wall of the syringe, an air outlet is convexly provided on the side wall of the front end portion of the syringe, the pressure gauge is detachably arranged on the side wall of the front end portion of the syringe, and the pressure gauge is detachably abutted against the inner peripheral wall of the syringe. The syringes are arranged in communication with each other, the knob is arranged at the rear end of the piston rod, the outer peripheral wall of the rear end of the syringe is recessed with a first accommodating groove, the sleeve is detachably embedded in the first accommodating groove, the upper end of the sleeve is recessed with a second accommodating groove, the lower end of the locking member is rotatably embedded in the second accommodating groove, the front end wall of the lower end of the locking member is recessed with a through groove, the inner bottom wall of the through groove is provided with an internal thread, the outer peripheral wall of the piston rod is provided with an external thread, and the piston rod can be movably passed through the through groove up and down. The outer thread of the piston rod can be screwed on the inner thread of the through groove, the outer side wall of the upper end of the locking piece is recessed with an open groove, the two side walls of the upper end of the connecting plate are respectively convexly provided with a short shaft, the two side walls of the upper end of the locking piece are respectively recessed with a first through hole, the short shaft is respectively rotatably embedded in the first through hole, the two side walls of the second accommodating groove are recessed with a second through hole, the side wall of the lower end of the connecting plate is recessed with a third through hole, the rotating shaft is sequentially penetrated through the second through hole, the upper end of the through groove and the third through hole It is arranged that the inner circumferential wall of the upper end part of the through groove is provided with a wedge-shaped surface, and the rotating shaft can be slidably arranged along the wedge-shaped surface, and the external thread of the piston rod is engaged with the internal thread of the through groove by rotating the locking piece to the right, so as to lock the relative position between the piston rod and the syringe, and the external thread of the piston rod is separated from the internal thread of the through groove by rotating the locking piece to the left, so as to unlock the piston rod, one end of the braided hose is connected to the air outlet, and the upper end wall of the connecting plate is recessed with a V-shaped groove, and the rear end wall of the upper end part of the locking piece is convexly provided with a lever.

2. The aortic valve balloon dilatation pressure pump according to claim 1, characterized in that: The front end wall and the rear end wall of the upper end of the first accommodating groove are respectively provided with an elastic limiting plate, and the elastic limiting plate can be arranged in abutment with the rear end wall of the locking member, and the elastic limiting plate is used to limit the position of the locking member.

3. The aortic valve balloon dilatation pressure pump according to claim 1, characterized in that: A first limiting plate is protruded from the left and right inner walls of the upper end of the first accommodating groove, and a second limiting plate is protruded from the left and right outer walls of the upper end of the sleeve. The lower end wall of the first limiting plate is respectively abutted against the upper end wall of the second limiting plate.

4. The aortic valve balloon dilatation pressure pump according to claim 1, characterized in that: The rear end of the piston is concavely provided with an inserting groove, and the front end of the piston rod is provided with an inserting portion, and the inserting portion is detachably embedded in the inserting groove.

5. The aortic valve balloon dilatation pressure pump according to claim 4, characterized in that: The inner peripheral wall of the plug-in slot is concavely provided with a plurality of first limiting grooves along the circumferential direction, and the outer peripheral wall of the plug-in portion is convexly provided with a plurality of limiting flanges, and the limiting flanges are detachably embedded in the first limiting grooves.

6. The aortic valve balloon dilatation pressure pump according to claim 1, characterized in that: The sealing rings are provided in plurality, and the outer peripheral wall of the piston is provided with a plurality of second limiting grooves along the circumferential direction, and the sealing rings are respectively and detachably embedded in the second limiting grooves.

7. The aortic valve balloon dilatation pressure pump according to claim 1, characterized in that: The two side walls of the rear end of the syringe are respectively provided with a handle lug.

8. The aortic valve balloon dilatation pressure pump according to claim 1, characterized in that: The capacity of the syringe is 50mL-70mL.

9. The aortic valve balloon dilatation pressure pump according to claim 1, characterized in that: The braided hose comprises a polyurethane layer and a nylon filament layer. The polyurethane layer is provided with two layers, and the nylon filament layer is provided between the two polyurethane layers.

Images