Balloon expansion pressure pump

Abstract

The utility model provides a balloon expansion pressure pump. The balloon expansion pressure pump comprises a pump shell, a pump bottle, a hand lever, an adjusting sliding block, a reset spring and a grip. The pump bottle is arranged in the pump shell, the head end of the hand rod is inserted into the pump bottle, the tail end of the hand rod is located outside the pump bottle, and external threads are arranged on the outer wall face of the hand rod. The adjusting sliding block is in a square block shape, an adjusting hole is formed in the middle of the adjusting sliding block, the hand rod is arranged in the adjusting hole in a penetrating mode, an adjusting interval is formed between the upper hole wall of the adjusting hole and the hand rod, and the lower hole wall of the adjusting hole is provided with internal threads meshed with the external threads. A sliding groove is formed in the inner wall of the pump shell and located in the rear side of the pump bottle, and a reset spring is arranged at the bottom end of the sliding groove. The adjusting sliding block is arranged in the sliding groove, the bottom end of the adjusting sliding block is connected with the reset spring, the adjusting sliding block can slide in the sliding groove, and the sliding direction of the adjusting sliding block in the sliding groove is perpendicular to the forming direction of the adjusting hole; one end of the grip is hinged to the pump shell, a protruding part is arranged at the bottom end of the grip, and the bottom end of the protruding part abuts against the top end of the adjusting sliding block.

Description

Technical Field

[0001] The present application belongs to the technical field of pressure pumps, and in particular relates to a balloon expansion pressure pump. Background Art

[0002] Balloon inflation pressure pumps are auxiliary booster devices used during PTCA and surgery to pressurize the balloon dilation catheter, thereby expanding the balloon and achieving the goal of dilating blood vessels or placing stents within them. Existing pressure pumps are mostly screw-propelled pumps, often equipped with a threaded ejection mechanism to ensure balloon inflation and post-use pressure relief. Pressure relief methods include two methods: reverse rotation of the lever and pulling out the lever by pressing a button. The former is slower, while the latter makes pressure control difficult, reducing safety.

[0003] To address the aforementioned issues, the prior art patent CN114344680B proposes a balloon expansion pressure pump that achieves rapid and precise pressure relief by adjusting the coordination of a slider, a button block, and a spring. However, this prior art suffers from the following issues: if the spring's support force is too high, the required pressure to release the pressure will also increase, making it more difficult to press the button; if the spring's support force is reduced, the thread lock will not be secure, making pressure loss more likely. Utility Model Content

[0004] The embodiment of the present application provides a balloon inflation pressure pump, comprising a pump housing, a pump bottle, a hand lever, an adjustment slider, a return spring, and a handle;

[0005] The pump bottle is arranged in the pump housing, the head end of the hand lever is inserted into the pump bottle, the tail end of the hand lever is located outside the pump bottle, and the outer wall surface of the hand lever has an external thread;

[0006] The adjustment slider is in a square shape, with an adjustment hole in the middle of the adjustment slider, the hand lever is inserted into the adjustment hole, an adjustment gap is provided between the upper hole wall of the adjustment hole and the hand lever, and the lower hole wall of the adjustment hole has an internal thread that can engage with the external thread;

[0007] The inner wall of the pump housing is provided with a slide groove, the slide groove is located at the rear side of the pump bottle, and the return spring is provided at the bottom end of the slide groove;

[0008] The adjusting slider is arranged in the sliding groove, the bottom end of the adjusting slider is connected to the return spring, the adjusting slider can slide in the sliding groove, and the sliding direction of the adjusting slider in the sliding groove is perpendicular to the direction in which the adjusting hole is opened;

[0009] One end of the handle is hinged on the pump housing, and the bottom end of the handle is provided with a convex portion, and the bottom end of the convex portion abuts against the top end of the adjusting slider.

[0010] In one possible embodiment, the balloon expansion pressure pump provided in the embodiment of the present application has a connecting column on each side of one end of the handle, and two symmetrical and spaced-apart sockets are provided on the pump housing, and the two connecting columns of the handle are inserted into the two sockets.

[0011] When it is necessary to make a large adjustment to the position of the hand lever, hold the pump housing with your hand, place the handle under the base of your thumb, and use the grip of your palm to press the handle down. The handle will press the adjustment slider down, so that the internal thread on the adjustment hole is separated from the external thread on the outer wall of the hand lever. Then pull the hand lever to adjust the position in a large range. After the adjustment is completed, release the handle, and the reset spring will push up the adjustment slider, so that the internal thread on the adjustment hole is engaged with the external thread on the outer wall of the hand lever again, thus locking the position of the hand lever.

[0012] This process utilizes the principle of leverage, switching from push-button pressure relief to side-wrench pressure relief. This also increases the spring's support force, resolving the conflicting issues of excessive push-button pressure requiring reduced spring support, and insufficient spring support causing pressure loss. Compared to existing technologies, pressure application is more stable and pressure relief is easier, allowing for single-handed relief. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0014] Figure 1 Schematic diagram of the structure of the balloon expansion pressure pump provided in an embodiment of the present application;

[0015] Figure 2 is a cross-sectional schematic diagram of a balloon expansion pressure pump provided in an embodiment of the present application;

[0016] Figure 3 Schematic diagram of the internal structure of the balloon expansion pressure pump provided in an embodiment of the present application;

[0017] Figure 4 Schematic diagram of an adjustment slider in a balloon inflation pressure pump provided in an embodiment of the present application;

[0018] 10- pump housing;

[0019] 11- chute;

[0020] 20-pump bottle;

[0021] 30-hand lever;

[0022] 31-external thread;

[0023] 40-Adjustment slider;

[0024] 41-adjustment hole;

[0025] 411-upper hole wall;

[0026] 412-lower hole wall;

[0027] 413-internal thread

[0028] 50-return spring;

[0029] 60-handle;

[0030] 61-convex part;

[0031] 62-Connecting column. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0033] Figure 1 Schematic diagram of the structure of the balloon expansion pressure pump provided in an embodiment of the present application; Figure 2 is a cross-sectional schematic diagram of a balloon expansion pressure pump provided in an embodiment of the present application; Figure 3 Schematic diagram of the internal structure of the balloon expansion pressure pump provided in an embodiment of the present application; Figure 4 This is a schematic diagram of an adjustment slider in a balloon inflation pressure pump provided in an embodiment of the present application.

[0034] In view of the problems existing in the balloon expansion pressure pump proposed in the prior art with patent number CN114344680B, improvements are made thereon to form the balloon expansion pressure pump in the embodiment of the present application.

[0035] See also Figures 1 to 4As shown, the present application provides a balloon inflation pressure pump, comprising a pump housing 10, a pump bottle 20, a hand lever 30, an adjustment slider 40, a return spring 50 and a handle 60, wherein:

[0036] The pump bottle 20 is disposed in the pump housing 10 , the head end of the handle 30 is inserted into the pump bottle 20 , the tail end of the handle 30 is located outside the pump bottle 20 , and the outer wall surface of the handle 30 has an external thread 31 .

[0037] The adjustment slider 40 is in the shape of a square, and has an adjustment hole 41 in the middle of the adjustment slider 40. The hand rod 30 is inserted into the adjustment hole 41. There is an adjustment gap between the upper hole wall 411 of the adjustment hole 41 and the hand rod 30. The lower hole wall 412 of the adjustment hole 41 has an internal thread 413 that can engage with the external thread 31.

[0038] The pump housing 10 has a chute 11 formed on its inner wall, located behind the pump bottle 20. A return spring 50 is located at the bottom of the chute 11. An adjustment slider 40 is positioned within the chute 11, with the bottom end of the adjustment slider 40 connected to the return spring 50. The return spring 50 is used to push the adjustment slider 40 upward, allowing the adjustment slider 40 to slide within the chute 11. The direction in which the adjustment slider 40 slides within the chute 11 is perpendicular to the direction in which the adjustment hole 41 is formed.

[0039] A connecting post 62 is provided on either side of one end of the handle 60. The pump housing 10 has two symmetrical, spaced-apart sockets into which the connecting posts 62 of the handle 60 are inserted. The bottom end of the handle 60 has a protrusion 61, the bottom end of which abuts against the top end of the adjustment slider 40.

[0040] When it is necessary to make a large adjustment to the position of the hand lever 30, hold the pump housing 10 with your hand, place the handle 60 under the base of your thumb, and use the gripping force of your palm to press down the handle 60. The handle 60 presses down the adjusting slider 40, so that the internal thread 413 on the adjusting hole 41 is separated from the external thread 31 on the outer wall of the hand lever 30. Then, pull the hand lever 30 to adjust the position in a large range. After the adjustment is completed, release the handle 60, and the reset spring 50 pushes up the adjusting slider 40, so that the internal thread 413 on the adjusting hole 41 is engaged with the external thread 31 on the outer wall of the hand lever 30 again, thereby locking the position of the hand lever 30.

[0041] This process utilizes the principle of leverage, switching from push-button pressure relief to side-wrench pressure relief. This also increases the spring's support force, resolving the conflicting issues of excessive push-button pressure requiring reduced spring support, and insufficient spring support causing pressure loss. Compared to existing technologies, pressure application is more stable and pressure relief is easier, allowing for single-handed relief.

[0042] In the description of the embodiments of the present application, it should be understood that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. The orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In the description of this application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0043] The terms "first," "second," "third," "fourth," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential sequence. It should be understood that the numbers used in this manner are interchangeable where appropriate, so that the embodiments of the application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or that are inherent to these processes, methods, products, or apparatus.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A balloon expansion pressure pump, characterized in that: Includes pump housing, pump bottle, hand lever, adjustment slider, return spring and grip; The pump bottle is arranged in the pump housing, the head end of the hand lever is inserted into the pump bottle, the tail end of the hand lever is located outside the pump bottle, and the outer wall surface of the hand lever has an external thread; The adjustment slider is in a square shape, with an adjustment hole in the middle of the adjustment slider, the hand lever is inserted into the adjustment hole, an adjustment gap is provided between the upper hole wall of the adjustment hole and the hand lever, and the lower hole wall of the adjustment hole has an internal thread that can engage with the external thread; The inner wall of the pump housing is provided with a slide groove, the slide groove is located at the rear side of the pump bottle, and the return spring is provided at the bottom end of the slide groove; The adjusting slider is arranged in the sliding groove, the bottom end of the adjusting slider is connected to the return spring, the adjusting slider can slide in the sliding groove, and the sliding direction of the adjusting slider in the sliding groove is perpendicular to the direction in which the adjusting hole is opened; One end of the handle is hinged on the pump housing, and the bottom end of the handle is provided with a convex portion, and the bottom end of the convex portion abuts against the top end of the adjusting slider.

2. The balloon expansion pressure pump according to claim 1, characterized in that: A connecting column is respectively provided on both sides of one end of the handle, and the pump housing is provided with two symmetrical and spaced-apart insertion holes, and the two connecting columns of the handle are inserted into the two insertion holes.

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