CN113318332A - Assembled electric balloon pressure pump - Google Patents

Abstract

The invention relates to an assembled electric balloon pressure pump. The invention provides an electric propeller, which comprises a bracket, a push rod, a motor, a power supply, a transmission mechanism, a clutch mechanism and a shell, wherein the push rod is arranged on the bracket; in another aspect, the present invention provides an assembled electric balloon pressure pump comprising a syringe and an electric thruster. The assembled electric balloon pressure pump adopts a unique assembled structural design and is divided into an injector and an electric propeller, and the injector is controlled by the electric propeller to complete pressurization and pressure relief control of the balloon. The electric propeller is pushed and pulled by a motor, supports multi-gear speed regulation and forward and backward movement, and can realize accurate pressure control; the operation is simple, and the operation can be carried out by one person and one hand; meanwhile, a clutch switch is arranged, so that the motor and the push rod can be separated by one key, and the flexible switching between an electric mode and a manual mode is realized.

Description

Assembled electric balloon pressure pump

Technical Field

The invention relates to the technical field of medical instruments, in particular to an assembled electric balloon pressure pump.

Background

For cardiovascular, cerebrovascular and peripheral vascular diseases represented by stenosis or occlusion, the treatment core is that after a guide wire is subjected to pathological changes, the treatment effect of correcting ischemic necrosis and the like is achieved through balloon dilatation and stent implantation. No matter the treatment of the pre-dilatation balloon and the post-dilatation balloon or the expansion of the stent balloon, the pressure pump is required to pressurize outside the body to continuously expand the balloon, after the balloon is expanded to treat pathological changes, the handle of the pressure pump is pulled back to release the pressure of the balloon so as to form negative pressure, and the aims of treating angiostenosis, occlusion and the like are achieved through the balloon expansion and the stent implantation. The pressure pump is an indispensable intervention device in the treatment fields of cardiovascular, cerebrovascular, peripheral blood vessels and the like.

The manual pressure pump widely used in clinic at present adopts a manual operation mode, the head end of the manual pressure pump is connected with the tail end of the saccule or the bracket, and after the saccule or the bracket reaches target lesion, the manual pressure pump performs pressure expansion and saccule expansion through a circle of external manual operation. In clinical operation, the manual pressure pump is time-consuming, labor-consuming and low in efficiency, particularly in complicated interventions such as diffuse long lesions and multiple vascular lesions, dozens or even hundreds of full manual operations need to be repeated, the operation precision is low, the risk is high, the interventional operation efficiency is greatly reduced, the balloon over-expansion is increased, and further serious complications such as vascular perforation, pericardial stuffing and even death are caused.

Disclosure of Invention

The invention provides an assembled electric balloon pressure pump, which aims to solve the clinical pain problems of low manual operation efficiency, time and labor consumption, poor precision, high fatigue operation risk and the like of the existing manual pressure pump.

The invention provides an electric propeller, which comprises a bracket, a push rod, a motor, a power supply, a transmission mechanism, a clutch mechanism and a shell, wherein the push rod is arranged on the bracket;

the bracket is of a groove-shaped structure, a clamping groove is fixed on the bracket, and the shell is fixed at the tail of the bracket;

the lower part of the shell is provided with a handle which can be held;

the push rod penetrates through the shell, a push rod clamping groove is fixed at the front end of the push rod, and a push rod handle is fixed at the tail part of the push rod;

the motor drives the transmission mechanism, and the power supply provides electric power for the motor;

the clutch mechanism is used for switching the electric thruster between an electric mode and a manual mode;

when the electric propeller is in an electric mode, the transmission mechanism drives the push rod to move back and forth;

when the electric thruster is in the manual mode, the clutch mechanism disconnects the transmission between the motor and the push rod.

Further, the bracket is of a semicircular groove structure, the clamping groove is composed of a first clamping groove and a second clamping groove, the first clamping groove is located at the front end of the bracket, and the second clamping groove is located in the middle of the bracket.

Furthermore, the first clamping groove and the second clamping groove are both circular sheet-shaped clamping grooves, and openings are formed in the first clamping groove and the second clamping groove. The opening of the first clamping groove is used for inserting the front end of the syringe barrel.

Further, the push rod clamping groove comprises a clamping groove front piece and a clamping groove rear piece, the clamping groove front piece and the clamping groove rear piece are fixed together, a gap is formed between the clamping groove front piece and the clamping groove rear piece, the clamping groove front piece is provided with an opening for inserting and fixing the piston push rod, and the push rod handle is disc-shaped.

Furthermore, the transmission mechanism is of a planetary gear structure and comprises a sun gear, a planet gear, a gear ring, a planet carrier and a gear; the sun gear is connected with an output shaft of the motor, and the sun gear is meshed with the planet gear; the gear is fixed on the planet carrier; the push rod is a square rod, the side surface of the middle part of the push rod is of a rack structure, and the gear is meshed with the rack; and gear ring outer bulges which are arranged at intervals are fixed outside the gear ring.

Still further, the electric thruster comprises a bearing; the other surfaces of the push rod are smooth planes and are supported and positioned through bearings.

Furthermore, the clutch mechanism comprises a locking block, a spring, a clutch push rod and a clutch switch, wherein a fixed fulcrum is arranged on the clutch push rod, and the clutch push rod rotates around the fixed fulcrum; the front end of the clutch push rod is connected with the locking block, the locking block is connected with the spring, and the tail of the clutch push rod is connected with the clutch switch.

Furthermore, the electric propeller comprises an advancing/retreating switch, a speed regulation drive plate and a motor control plate, wherein the advancing/retreating switch and the speed regulation drive plate are all connected to the motor control plate, the motor control plate controls the motor to rotate forwards, reversely or keep according to corresponding rotating speed according to received signals, and the rotating speed is adjustable.

The invention provides an assembled electric balloon pressure pump on the other hand, which comprises an injector and an electric propeller;

the syringe comprises a syringe barrel, a piston push rod and a pressure gauge;

the pressure gauge is positioned at the front end of the injector;

a piston push rod handle is fixed at the tail part of the piston push rod and is disc-shaped;

the first clamping groove is attached to the front end face of the syringe barrel, and the second clamping groove is attached to the rear end face of the syringe barrel, so that the syringe barrel is positioned and fixed;

the gap of the push rod clamping groove is used for supporting and fixing the piston push rod handle, and the push rod drives the piston push rod to move back and forth.

In conclusion, the beneficial effects of the invention are as follows:

1. unique assembled structural design compromises performance and cost, syringe disposable, and electric thruster repeatedly usable, syringe pass through the draw-in groove fixed, and piston push rod passes through the push rod draw-in groove fixed.

2. The electric thruster controls the injector to realize the advancing and retreating of the piston push rod and complete the pressurization and pressure relief control of the saccule, adopts a bidirectional motor pulling system to support multi-gear speed regulation and forward and backward movement, and can realize accurate pressure control; the operation is simple, and the operation can be carried out by one person and one hand. Compared with a traditional manual pressure pump, the manual pressure pump is time-saving, labor-saving and high in precision in operation, accurate pressure control can be achieved, the electric propeller is integrated with a battery, and the electric propeller can be charged repeatedly for use.

3. Disengageable transmission system, gear drive is reliable and stable, is equipped with clutch switch simultaneously, can throw off push rod and motor key, realizes the nimble switching of electric mode to manual mode, has guaranteed flexibility and the security of using, has solved the clinical application pain point of traditional force pump, has improved operative employee's operation experience, has promoted convenience, accuracy, security and the high efficiency of interveneeing the operation.

Drawings

The aspects and advantages of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. In the drawings:

fig. 1 is a general structural view of an assembled electric balloon pressure pump.

Fig. 2 is a transmission structure diagram of an assembled electric balloon pressure pump.

Fig. 3 is a diagram of transmission mode and clutch mode of the assembled electric balloon pressure pump.

Fig. 4 is a fixed state diagram of the assembled electric balloon pressure pump.

In the above figures: 1. a syringe barrel; 2. a pressure gauge; 3. a piston push rod; 4. a piston push rod handle; 5. a bracket; 6. a push rod; 7. a push rod handle; 8. a housing; 9. a handle; 10. a first card slot; 11. a second card slot; 12. a push rod clamping groove; 13. a clamping groove front piece; 14. a clamping groove rear sheet; 15. a transmission mechanism; 16. a rack; 17. a gear; 18. a motor; 19. a bearing; 20. a clutch switch; 21. a clutch push rod; 22. a locking block; 23. fixing a fulcrum; 24. a spring; 25. a forward/reverse switch; 26. a speed regulation drive plate; 27. a lithium battery; 28. a motor control board; 29. a sun gear; 30. an output shaft of the motor; 31. a planet wheel; 32. a ring gear; 33. the gear ring protrudes outwards; 34. a planet carrier.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. It should be noted that these embodiments are provided so that this disclosure can be more completely understood and fully conveyed to those skilled in the art, and the present disclosure may be implemented in various forms without being limited to the embodiments set forth herein.

In the description of the present application, it should be noted that the terms "front end", "tail", "front end", "rear end", "outer", "bottom", "lower", etc. indicate orientations or positional relationships based on the positional relationships shown in the drawings, and are only for convenience of describing technical solutions claimed in the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the technical solutions claimed in the present application.

As shown in figure 1, the invention is a brand-new assembled electric balloon pressure pump, which comprises two independent parts, namely a syringe and an electric propeller.

The syringe part is designed to be used aseptically, the structure is similar to that of the traditional integrated pressure pump, the syringe barrel and the pressure gauge are reserved, and the pressurization and the pressure relief of the balloon are realized by the back-and-forth movement of the piston push rod. The manometer is located the front end of syringe, real-time detection and demonstration pressure value, and the afterbody of piston push rod is fixed with discoid piston push rod handle.

The electric propeller adopts a motor driving mechanism to replace a traditional manual push rod, and the electric propeller can be repeatedly used. The electric propeller is of a pistol structure and mainly comprises a bracket, a push rod, a motor, a power supply, a transmission mechanism, a clutch mechanism and a casing. The lower part of the casing is a handle which can be held by a single hand of medical staff.

As shown in fig. 1 and 2, the bracket is of a semicircular groove structure, a first clamping groove and a second clamping groove which are circular and flaky are respectively fixed at the front end and the middle part of the bracket and used for supporting and fixing the syringe body, the first clamping groove is attached to the front end face of the syringe barrel, the second clamping groove is attached to the rear end face of the syringe barrel, the syringe barrel is positioned and fixed, and the bandage can be used for surrounding the syringe barrel and the bracket to further reinforce the syringe barrel. The first clamping groove is provided with an opening for inserting the front end of the syringe barrel, and the second clamping groove is also provided with an opening which is not interfered with the piston push rod.

The push rod crosses the casing, and the push rod draw-in groove is fixed at the front end of the push rod and is used for supporting and fixing the tail part of the piston push rod.

The push rod clamping groove comprises a clamping groove front piece and a clamping groove rear piece, the clamping groove front piece and the clamping groove rear piece are fixed together, and a gap is formed between the clamping groove front piece and the clamping groove rear piece and used for supporting and fixing a piston push rod tail disc. The front piece of the clamping groove is also provided with an opening for inserting and fixing the piston push rod. The push rod is a square rod, the side surface of the middle of the push rod is of a rack structure, the push rod is meshed with a gear driven by a motor, and the rotation of the motor is finally converted into the linear motion of the push rod through the transmission of a gear rack. The other surfaces of the push rod are smooth planes and are supported and positioned through bearings. The tail part of the push rod is fixed with a disc-shaped push rod handle, so that medical personnel can hold the push rod in a manual mode and push and pull the push rod directly.

As shown in fig. 2 and 3, the transmission mechanism adopts a planetary gear structure, the sun gear is connected with the output shaft of the motor, gear ring protrusions which are arranged at intervals are fixed outside the gear ring, the gear ring can be controlled by a clutch switch to process a fixed state or a free state, and a gear which is meshed with a rack is fixed on the planet carrier. The clutch mechanism consists of a locking block, a spring, a clutch push rod and a clutch switch, a fixed fulcrum is arranged on the clutch push rod, and the clutch push rod rotates around the fixed fulcrum; the front end of the clutch push rod is connected with the locking block, the locking block is connected with the spring, and the tail of the clutch push rod is connected with the clutch switch. When the clutch switch is pressed down, the locking block disengages the transmission between the motor and the push rod, so that the push rod enters a free movement state, and manual push-pull operation of the push rod is allowed.

As shown in fig. 3, the assembled electric balloon pressure pump of the present invention has an electric mode and a manual mode, and corresponds to a transmission mode and a clutch mode of a transmission mechanism, respectively. Under the transmission mode, the clutch switch is loosened, the locking block is embedded into the gap between the outer protrusions of the gear ring under the action of the spring, so that the gear ring is fixed, at the moment, the sun gear and the planet carrier form fixed transmission ratio transmission, the motor output shaft drives the sun gear to rotate, the sun gear drives the planet carrier to rotate, the planet carrier drives the gear fixed on the planet carrier to rotate, and then linear motion of the push rod is realized through gear-rack transmission. In the clutch mode, a clutch switch is pressed down, a clutch push rod rotates around a fixed fulcrum and simultaneously presses a locking block, so that the clutch push rod is separated from an outer protruding gap of a gear ring by overcoming the elastic force of a spring, the gear ring enters a free rotation state, the transmission between a sun gear and a planet carrier is disconnected, the planet carrier is also in the free rotation state, the gear ring enters a manual mode at the moment, and medical staff can move back and forth by directly pulling the push rod.

As shown in fig. 2, a clutch switch and a forward/backward switch are integrated at the front part of the handle, a speed regulation dial is integrated at the rear part, the clutch switch is used for switching the electric propeller between an electric mode and a manual mode, the forward/backward switch and the speed regulation dial are only effective in the electric mode, the forward/backward switch has three positions, the upper part of the switch is pressed, the push rod is pushed forward, the lower part of the switch is pressed, the push rod is pushed backward, the switch keeps a middle position, and the push rod is stopped and kept at the current position. The speed regulating dial is used for selecting the forward or backward speed of the push rod. The power supply is a lithium battery, can be detached and replaced, and is filled from the bottom of the handle after external charging is finished. The motor is a direct current motor. The forward/backward switch and the speed regulation dial are all connected to a motor control board, and the motor control board controls the motor to rotate forwards, reversely or keep according to the corresponding rotating speed according to the received signals, and the rotating speed is adjustable.

When the injector is used, the piston push rod of the injector is manually adjusted to a proper position, then the injector is integrally clamped into a bracket of the electric propeller, the front end surface and the rear end surface of the injector cylinder are respectively attached and fixed with a first clamping groove and a second clamping groove on the bracket, the piston push rod of the injector is attached and fixed with a push rod clamping groove of the electric propeller, and the bracket and the injector cylinder can be further fixed by being surrounded by a binding band when necessary.

After the fixation is finished, as shown in fig. 4, the handle of the electric propeller is held, the push rod of the electric propeller is controlled to be pushed forwards and backwards through the forward/backward switch, so that the forward and backward of the push rod of the injector piston are controlled, the pressurization and the pressure relief of the balloon are realized, and the forward or backward speed adjustment of the push rod can be realized through the speed regulating switch. The electric thruster can also disconnect the transmission between the push rod and the motor by pressing the clutch switch, thereby realizing the switching from the electric mode to the manual mode, at the moment, an operator can hold the push rod handle, and directly pull the push rod and the injector piston push rod fixed with the push rod, thereby directly controlling the pressurization and the pressure relief of the balloon.

The assembled electric balloon pressure pump adopts the electric propeller to push and pull, supports multi-gear speed regulation and forward and backward movement, has time-saving and labor-saving operation and high precision compared with the traditional manual pressure pump, and can realize accurate pressure control; the operation is simple, and the operation can be carried out by one person and one hand; meanwhile, a clutch switch is arranged, so that the motor and the push rod can be disengaged by one key, the flexible switching from the electric mode to the manual mode is realized, and the flexibility and the safety of use are ensured. The performance improvement effectively solves the clinical application pain point of the traditional pressure pump, improves the operation experience of the operator, and improves the convenience, accuracy, safety and high efficiency of the interventional operation.

In the present embodiment, the transmission mechanism is a planetary gear structure, but other transmission mechanisms such as a lead screw and a nut may be used. The syringe format assembled on the electric thruster may be 20ml or 30ml or 50ml or any other format.

The invention is suitable for saccule or stent expansion in the interventional field of cardiovascular, cerebrovascular, peripheral blood vessel and the like.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (9)

1. An electric thruster, characterized in that: comprises a bracket, a push rod, a motor, a power supply, a transmission mechanism, a clutch mechanism and a shell;

the bracket is of a groove-shaped structure, a clamping groove is fixed on the bracket, and the shell is fixed at the tail of the bracket;

the lower part of the shell is provided with a handle which can be held;

the push rod penetrates through the shell, a push rod clamping groove is fixed at the front end of the push rod, and a push rod handle is fixed at the tail part of the push rod;

the motor drives the transmission mechanism, and the power supply provides electric power for the motor;

the clutch mechanism is used for switching the electric thruster between an electric mode and a manual mode;

when the electric propeller is in an electric mode, the transmission mechanism drives the push rod to move back and forth;

when the electric thruster is in the manual mode, the clutch mechanism disconnects the transmission between the motor and the push rod.

2. The electric propeller of claim 1, wherein the bracket has a semi-circular groove structure, and the engaging groove is composed of a first engaging groove and a second engaging groove, the first engaging groove is located at the front end of the bracket, and the second engaging groove is located at the middle of the bracket.

3. The electric propeller of claim 2, wherein the first and second slots are both circular sheet slots, and wherein the first and second slots each have an opening.

4. The electric propeller of claim 1, wherein the push rod slot comprises a slot front piece and a slot rear piece, the slot front piece and the slot rear piece are fixed together, a gap is formed between the slot front piece and the slot rear piece, the slot front piece has an opening, and the push rod handle is disc-shaped.

5. The electric thruster of claim 1, wherein the transmission mechanism is a planetary gear structure comprising a sun gear, a planet gear, a ring gear, a planet carrier and a gear; the sun gear is connected with an output shaft of the motor, and the sun gear is meshed with the planet gear; the gear is fixed on the planet carrier; the push rod is a square rod, the side surface of the middle part of the push rod is of a rack structure, and the gear is meshed with the rack; and gear ring outer bulges which are arranged at intervals are fixed outside the gear ring.

6. The electric thruster of claim 5, wherein the electric thruster comprises a bearing; the other surfaces of the push rod are smooth planes and are supported and positioned through bearings.

7. The electric propeller of claim 1, wherein the clutch mechanism comprises a locking block, a spring, a clutch push rod and a clutch switch, the clutch push rod is provided with a fixed fulcrum, and the clutch push rod rotates around the fixed fulcrum; the front end of the clutch push rod is connected with the locking block, the locking block is connected with the spring, and the tail of the clutch push rod is connected with the clutch switch.

8. The electric propeller of claim 1, wherein the electric propeller comprises a forward/backward switch, a speed regulation dial and a motor control board, wherein the forward/backward switch and the speed regulation dial are all connected to the motor control board, and the motor control board controls the motor to rotate forwards, reversely or keep according to the corresponding rotating speed according to the received signals, and the rotating speed is adjustable.

9. An assembled electric balloon pressure pump, comprising a syringe and an electric thruster according to any one of claims 1-8;

the syringe comprises a syringe barrel, a piston push rod and a pressure gauge;

the pressure gauge is positioned at the front end of the injector;

a piston push rod handle is fixed at the tail part of the piston push rod and is disc-shaped;

the first clamping groove is attached to the front end face of the syringe barrel, and the second clamping groove is attached to the rear end face of the syringe barrel, so that the syringe barrel is positioned and fixed;

the gap of the push rod clamping groove is used for supporting and fixing the piston push rod handle, and the push rod drives the piston push rod to move back and forth.

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