Balloon dilatation pressure pump
阅读说明：本技术 一种球囊扩张压力泵 (Balloon dilatation pressure pump ) 是由 沈坤 于 2020-07-22 设计创作，主要内容包括：本发明涉及医疗器械领域,具体涉及一种球囊扩张压力泵。一种球囊扩张压力泵,包括快充手柄、与快充手柄连接的推杆以及套设在推杆中部后半段上的筒体,在所述快充手柄和筒体之间的推杆上标有刻度线,且所述刻度线上设置有可移动限位圈；采用本发明的球囊扩张压力泵,可快速设定球囊需要充盈的体积,并一步充盈到位；而且该装置设置有快充手柄以及微调手柄,因此对于一些体积较大、对压力或体积要求精度较高的产品,可先利用快充手柄进行快速充盈,而后再利用微调手柄进行精确调节,所以使用该压力泵可使充盈过程更加方便快捷精确。(The invention relates to the field of medical instruments, in particular to a balloon dilatation pressure pump. A balloon dilatation pressure pump comprises a quick-charging handle, a push rod connected with the quick-charging handle and a cylinder body sleeved on the rear half section of the middle part of the push rod, wherein scale marks are marked on the push rod between the quick-charging handle and the cylinder body, and a movable limiting ring is arranged on the scale marks; by adopting the balloon dilatation pressure pump, the volume of the balloon to be inflated can be quickly set, and the balloon can be inflated in place in one step; and the device is provided with fast handle and the fine setting handle of filling, consequently to some great, the higher product of pressure or volume requirement precision of volume, can utilize fast handle of filling earlier to carry out full fast, then utilizes the fine setting handle to carry out the accuracy regulation, so use this force pump can make full process convenient and fast more accurate.)
1. The utility model provides a sacculus expansion force pump which characterized in that, including fill the handle soon, with fill push rod and the cover that the handle is connected soon and establish the barrel on the latter half section in push rod middle part fill the push rod between handle and the barrel soon and be marked with the scale mark, just be provided with portable spacing collar on the scale mark.
2. The balloon dilation pressure pump of claim 1 wherein the push rod is provided with a push rod external thread in the middle; an upper sliding block and a lower sliding block are arranged on the external thread of the push rod, and internal threads matched with the external thread of the push rod are arranged on the upper sliding block and the lower sliding block.
3. The balloon dilation pressure pump of claim 2 wherein the upper and lower sliders are fixedly or removably attached to the barrel.
4. The balloon dilatation pressure pump is characterized by comprising a quick-charging handle, a push rod connected with the quick-charging handle and a cylinder body sleeved on the rear half section of the middle part of the push rod, wherein the push rod is of a hollow structure, and a fine adjustment rod is arranged inside the push rod; one end of the fine adjustment rod is provided with a fine adjustment handle, and the other end of the fine adjustment rod is provided with a piston.
5. The balloon dilation pressure pump of claim 4 wherein the push rod is provided with a push rod external thread in the middle; an upper sliding block and a lower sliding block are arranged on the external thread of the push rod, and internal threads matched with the external thread of the push rod are arranged on the upper sliding block and the lower sliding block.
6. The balloon dilation pressure pump of claim 5 wherein the upper and lower sliders are fixedly or removably attached to the barrel.
7. The balloon dilation pressure pump according to any one of claims 4 to 6, wherein the fine adjustment rod is provided with fine adjustment rod external threads in the middle rear half section; and the push rod is provided with an internal thread matched with the external thread of the fine adjustment rod.
8. The balloon-expandable pressure pump of claim 7, wherein the pitch of the push rod external thread is greater than the pitch of the fine adjustment rod external thread.
9. The balloon dilation pressure pump of claim 8 wherein a pressure gauge is further provided on the end of the barrel distal from the quick fill handle.
10. The balloon dilatation pressure pump of claim 8 wherein the barrel has a connector attached thereto, the connector being attached to the end of the connector distal from the barrel.
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a balloon dilatation pressure pump.
Background
The interventional therapy operation is a minimally invasive treatment mode of percutaneous puncture, has the characteristics of no need of operation, small wound, quick recovery and good effect, and is developed very quickly as an advanced and effective cardiovascular disease treatment method at present. The balloon expansion pressure pump is a medical apparatus used for pressurizing the balloon expansion catheter and expanding the balloon to achieve the purpose of expanding the blood vessel or retaining a stent in the blood vessel.
In interventional procedures, it is common to use a balloon inflation pressure pump to inflate the balloon, monitor the pressure within the balloon and deflate the balloon. The pressure pump can inject the solution such as contrast agent or physiological saline into the vascular diseased part of the patient under pressure, so that the doctor can clearly monitor the operation treatment and the diseased part through the electronic computed tomography technology. The pressure pump can also expand the sacculus to monitor the pressure in the sacculus, after the expansion of the stent is completed, the pressure pump can release pressure and shrink the sacculus.
The existing balloon dilatation pressure pump is inconvenient in the operation processes of pressurization, pressure relief, negative pressure and the like, poor in air tightness, short in service life of a piston and poor in reliability.
Disclosure of Invention
In order to solve the technical problems, the invention provides a balloon dilatation pressure pump in a first aspect, which comprises a quick-charging handle, a push rod connected with the quick-charging handle and a cylinder body sleeved on the rear half section of the middle part of the push rod, wherein scale marks are marked on the push rod between the quick-charging handle and the cylinder body, and a movable limiting ring is arranged on the scale marks.
The scale mark is the volume scale, according to the sign of volume scale, when aerifing the sacculus, can set for the abundant volume of sacculus as required, consequently can one-step abundant essence that targets in place of filling fast according to the instruction of scale mark, convenient operation.
In a preferred or alternative embodiment, the end of the push rod away from the quick-charging handle is provided with a piston.
In a preferred or alternative embodiment, the middle part of the push rod is provided with a push rod external thread; an upper sliding block and a lower sliding block are arranged on the external thread of the push rod, and internal threads matched with the external thread of the push rod are arranged on the upper sliding block and the lower sliding block.
In a preferred or alternative embodiment, the upper and lower sliders are fixedly or movably connected to the cylinder.
After the sliding block and the lower sliding block are connected with the cylinder body, the upper sliding block and the lower sliding block are tightly matched with the external thread of the push rod through internal threads, the push rod is moved by rotating the quick-charging handle, and the reliability and stability of pressurization are ensured.
The invention provides another balloon dilatation pressure pump, which comprises a quick-charging handle, a push rod connected with the quick-charging handle and a cylinder body sleeved on the rear half section of the middle part of the push rod, wherein the push rod is of a hollow structure, and a fine adjustment rod is arranged in the push rod; one end of the fine adjustment rod is provided with a fine adjustment handle, and the other end of the fine adjustment rod is provided with a piston.
In a preferred or alternative embodiment, the middle part of the push rod is provided with a push rod external thread; an upper sliding block and a lower sliding block are arranged on the external thread of the push rod, and internal threads matched with the external thread of the push rod are arranged on the upper sliding block and the lower sliding block.
In a preferred or alternative embodiment, the upper and lower sliders are fixedly or movably connected to the cylinder.
In a preferred or alternative embodiment, the rear half section of the middle part of the fine tuning rod is provided with fine tuning rod external threads; and the push rod is provided with an internal thread matched with the external thread of the fine adjustment rod.
In a preferred or alternative embodiment, the pitch of the external thread of the push rod is greater than the pitch of the external thread of the fine adjustment rod.
The pitch of push rod external screw thread is bigger than the pitch of fine setting pole external screw thread, and rotates same angle when pitch is big, and the distance that the push rod removed is bigger, consequently through the steerable quick sufficient mode of difference of screw thread pitch on push rod and the fine setting pole and fill the mode with the accuracy.
Through the rotation cooperation of filling handle and fine setting handle soon, to the great, pressure of volume or the higher product of volume requirement precision, can utilize the rotation of filling the handle soon earlier and fill fast, then the rotation of recycling the fine setting handle carries out the accurate regulation, therefore this kind of device convenient and fast more is accurate.
In a preferred or alternative embodiment, a pressure gauge is further arranged at one end of the cylinder body far away from the quick-charging handle.
In a preferred or alternative embodiment, the cylinder is provided with a connecting pipe communicated with the cylinder, and one end of the connecting pipe far away from the cylinder is also provided with a connector connected with the balloon catheter.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a balloon dilatation pressure pump, which can be used for quickly setting the volume of a balloon to be inflated and filling the balloon in place in one step; the device is provided with the quick-filling handle and the fine-adjustment handle, so that for some products with larger volume and higher precision required by pressure or volume, the quick-filling handle can be used for quickly filling, and then the fine-adjustment handle is used for accurately adjusting, so that the filling process can be more convenient, quicker and more accurate by using the pressure pump; in addition, the pressure pump has good operability by selecting the material of the piston.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly described below, the drawings described below are only some embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained based on the drawings without creative efforts.
Fig. 1 is a schematic structural view of a balloon-expandable pressure pump according to embodiment 1 of the present invention;
fig. 2 is a schematic partial cross-sectional view of a balloon-expandable pressure pump according to example 1 of the present invention;
fig. 3 is a schematic structural view of a balloon-expandable pressure pump according to
fig. 4 is a schematic partial cross-sectional view of a balloon-expandable pressure pump according to
fig. 5 is a schematic sectional view of the cylinder of the balloon inflation pressure pump according to
fig. 6 is a schematic structural view of a balloon-expandable pressure pump according to
the numbering in the figure is as follows:
1. a quick-charging handle; 2. a push rod; 3. a barrel; 4. scale lines; 5. a movable limiting ring; 6. the push rod is externally threaded; 7. an upper slide block; 8. a lower slide block; 9. a fine adjustment rod; 10. a fine adjustment handle; 11. a piston; 12. fine tuning rod external thread; 13. a pressure gauge; 14. a connecting pipe; 15. and (4) a joint.
Detailed Description
The technical features of the technical solutions provided by the present invention are further clearly and completely described below with reference to the specific embodiments, and the scope of protection is not limited thereto.
The words "preferred", "more preferred", and the like, in the present invention refer to embodiments of the invention that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
In order to solve the technical problem, the invention provides a balloon dilatation pressure pump in a first aspect, which comprises a quick-charging handle 1, a
The scale mark is the volume scale, according to the sign of volume scale, when aerifing the sacculus, can set for the abundant volume of sacculus as required, consequently can one-step abundant essence that targets in place of filling fast according to the instruction of scale mark, convenient operation.
In a preferred or alternative embodiment, the end of the
In a preferred or alternative embodiment, the
In a preferred or alternative embodiment, the upper and
After the upper sliding block 7 and the lower sliding
The invention provides another balloon dilatation pressure pump, which comprises a quick-charging handle 1, a
In a preferred or alternative embodiment, the
In a preferred or alternative embodiment, the upper and
In a preferred or alternative embodiment, the rear half of the middle part of the
In a preferred or alternative embodiment, the pitch of the push rod
The pitch of the push rod
Through the rotation cooperation of filling handle 1 and fine setting handle 10 soon, to the great, pressure of volume or the higher product of volume requirement precision, can utilize earlier the rotation of filling handle 1 soon to carry out fast filling, and then the rotation of reuse fine setting handle 10 carries out the accurate regulation, therefore this kind of device convenient and fast more is accurate.
In a preferred or alternative embodiment, a
In a preferred or alternative embodiment, the
More preferably, the
In some embodiments, the silicone rubber composite comprises, by weight, 50-70 parts of methyl vinyl silicone rubber, 80-100 parts of aromatic modified terpene resin, 5-15 parts of tributyl citrate, 2-7 parts of diisobutyl tin dilaurate, 15-30 parts of calcium carbonate, 5-15 parts of mica, 5-15 parts of chlorinated paraffin, 8-15 parts of calcium stearate, 3-8 parts of a coupling agent, and 1-4 parts of dicumyl peroxide.
In a preferred or alternative embodiment, the silicone rubber composite is prepared as follows: the method comprises the steps of uniformly mixing raw methyl vinyl silicone rubber, aromatic modified terpene resin, tributyl citrate, diisobutyl tin dilaurate, calcium carbonate, mica, chlorinated paraffin, calcium stearate, a coupling agent and dicumyl peroxide in an open rubber mixing mill, then carrying out thin passing for 8-10 times, rolling for 5 times, then taking out sheets, standing at room temperature for 12-24 hours, turning over once, carrying out vulcanization molding on a flat vulcanizing machine, and then carrying out secondary vulcanization in a blast oven to remove residual oxidant.
In a preferred or alternative embodiment, the aromatic modified terpene resin is an aromatic modified terpene resin having a TG glass transition temperature of less than 85 ℃; more preferably, the aromatic modified terpene resin is a styrene modified terpene resin having a TG glass transition temperature of less than 65 ℃.
The styrene modified terpene resin described herein has low color, little odor, good compatibility with most polyolefins, low melt viscosity, and wide application range, and is suitable for high temperature requirements.
In a preferred or alternative embodiment, as styrene modified terpene resins having a glass transition temperature of less than 65 ℃, there may be mentioned, but are not limited to: sylvares ZT105LT (TG: 59 ℃), Sylvares ZT115LT (TG: 85 ℃), Sylvares ZT5100 (TG: 45 ℃).
In a preferred or alternative embodiment, the mass ratio of the methyl vinyl silicone rubber to the styrene modified terpene resin is (50-70 (80-100)), and more preferably 60: 90.
In the research, the preferable styrene modified terpene resin has better performance than terpene resin in the selection of the resin, and the styrene modified terpene resin not only can be well compatible with the rubber matrix, has softening effect on the rubber matrix, but also can improve the modulus of vulcanized rubber due to excellent mechanical properties of the styrene modified terpene resin; the inventor surprisingly found that in further research, the dimensional stability of the silicone rubber material is better when the mass ratio of the methyl vinyl silicone rubber to the styrene modified terpene resin is (50-70 (80-100)), and the inventor speculates that the styrene modified terpene resin may be slightly vulcanized, and the vulcanization destroys the regularity of the vulcanization reaction process of the methyl vinyl silicone rubber, so as to avoid the orderly arrangement of the methyl vinyl silicone rubber into crystals, and on the other hand, the interpenetrating polymer network structure may be favorably formed in the vulcanization at the ratio, so as to improve the mechanical property of the methyl vinyl silicone rubber.
Further, among the choices of the styrene-modified terpene resin, the inventors found that the choice of the glass transition temperature of the styrene-modified terpene resin also has some influence on the dimensional stability of the silicone rubber material, and that the dimensional stability is the best when the glass transition temperature thereof is less than 65 ℃. The inventors believe that when the styrene-modified terpene resin dilutes the rubber matrix to some extent after addition, it wraps the vulcanizer in the early stage of vulcanization when the glass transition temperature is 65 ℃ or lower, and at this time, the fluidity of the resin is high, and the vulcanizing agent wrapped therein is therefore more likely to migrate, thus resulting in a higher crosslinking density than other resins during the mutual crosslinking, resulting in better elasticity of the silicone rubber material.
In a preferred or alternative embodiment, the coupling agent is diisopropyl (acetylacetonate) titanate.
When the strength of the material is further improved, the physical properties of the material can be obviously improved by adopting superfine calcium carbonate, the compatibility of the material with other components can be obviously improved by adding titanate, the conventional method of adopting titanate with long alkyl chains can not obviously improve the mechanical properties, but the titanate is indispensable for improving the dispersibility of the calcium carbonate, so that in order to solve the problem that the addition of the titanate is not suitable for the system of the invention, the inventor unexpectedly finds that the di (acetylacetone) diisopropyl titanate can be suitable for the system to better improve the material properties, the inventor considers that each molecule of the di (acetylacetone) diisopropyl titanate has two carbonyl groups, and can form hydrogen bonds with free hydroxyl on the surface of the calcium carbonate in the process of coupling with the calcium carbonate, so that the whole molecule can be adsorbed on the calcium carbonate to be coupled as long as one carbon group forms hydrogen bonds with the calcium carbonate, thereby making the interaction with calcium carbonate stronger, helping to pull apart the agglomerated calcium carbonate particles during vulcanization and preventing re-agglomeration of the filler.
The tributyl citrate, namely tributyl citrate, the chemical name of which is 3-hydroxy-3-carboxyl glutaric acid tributyl ester, is an ester compound and can be mutually dissolved with most organic solvents. The plasticizer is prepared by reacting citric acid with n-butyl alcohol, can be directly used as a plasticizer, and can be further processed into a plasticizer acetyl tributyl citrate with excellent performance, so that the plasticizer is a phthalate plasticizer with limited application range.
In a preferred or alternative embodiment, specific examples of the chlorinated paraffin include chlorinated paraffin 52, chlorinated paraffin 70, chlorinated paraffin 52, chlorinated paraffin 42; here, the chlorinated paraffin 70 is preferred, and is commercially available, and its purchase source is not limited at all.
The present invention is described in detail below by way of examples, and in addition, if not otherwise stated, the raw materials used are commercially available, wherein calcium carbonate is a JKLM-A1 product of a new material from Juglans thunbergii, mica was purchased from a processing plant of Lu Bermuda mica, Lingshan.
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