JP2003056667A - Feed screw for syringe pump, and syringe pump - Google Patents
Feed screw for syringe pump, and syringe pumpInfo
- Publication number
- JP2003056667A JP2003056667A JP2001241062A JP2001241062A JP2003056667A JP 2003056667 A JP2003056667 A JP 2003056667A JP 2001241062 A JP2001241062 A JP 2001241062A JP 2001241062 A JP2001241062 A JP 2001241062A JP 2003056667 A JP2003056667 A JP 2003056667A
- Authority
- JP
- Japan
- Prior art keywords
- feed screw
- syringe pump
- syringe
- screw
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Transmission Devices (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明はシリンジポンプ用
送りねじおよびシリンジポンプに関する。TECHNICAL FIELD The present invention relates to a feed screw for a syringe pump and a syringe pump.
【０００２】[0002]
【従来の技術】体内への栄養補給や輸血、化学療法剤、
麻酔剤等の薬液注入を所定の注入速度で行なう装置とし
てシリンジポンプが多用されている。このシリンジポン
プは、送りねじに係合する直線運動可能なスライダーに
よりシリンジの押子が押圧されて、シリンジ内の薬液が
体内に注入される。スライダーは、送りねじの回転力が
軸方向移動に変換されて直線運動となる。また、薬液の
注入前や注入後にシリンジをシリンジポンプにセットし
たり、シリンジポンプから除去したりしなくてはならな
いので、シリンジはシリンジポンプに着脱自在に保持さ
れ、必要に応じてシリンジの押子とスライダーとが係合
する構造となっている。送りねじとスライダーとの係合
は、ハーフナットを送りネジに脱着することによりなさ
れ、送りねじの回転力をスライダーの直線運動に変換し
たり停止させたりしている。2. Description of the Related Art Nutritional supply to the body, blood transfusions, chemotherapeutic agents,
A syringe pump is often used as a device for injecting a drug solution such as an anesthetic at a predetermined injection speed. In this syringe pump, the pusher of the syringe is pressed by a linearly movable slider that engages with a feed screw, and the drug solution in the syringe is injected into the body. In the slider, the rotational force of the feed screw is converted into an axial movement to make a linear movement. In addition, since the syringe must be set in the syringe pump or removed from the syringe pump before and after injecting the drug solution, the syringe is detachably held by the syringe pump, and if necessary, the syringe pusher And the slider are engaged with each other. The feed screw and the slider are engaged with each other by detaching the half nut from the feed screw, and the rotational force of the feed screw is converted into a linear motion of the slider or stopped.
【０００３】従来、このようなシリンジポンプ用送りね
じは、真ちゅう製ハーフナットとステンレス製転造ねじ
軸とにより構成され、ねじとナット間の潤滑のために、
ねじ軸にグリースが塗布され、定期的に例えば３ヶ月毎
に装置を分解してグリースを補充していた。Conventionally, such a feed screw for a syringe pump is constituted by a brass half nut and a stainless rolled screw shaft, and for lubrication between the screw and the nut,
Grease was applied to the screw shaft, and the device was periodically disassembled and replenished with grease, for example, every three months.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、グリー
スの補給効果がなくなると、摺動時に騒音が発生する問
題がある。また、ハーフナットとねじ軸との噛み合い時
に金属バリが発生しやすく、摺動面に傷をつけ、ねじの
送り精度を低下させるという問題がある。However, if the grease replenishing effect is lost, there is a problem that noise is generated during sliding. Further, there is a problem that metal burrs are apt to occur when the half nut and the screw shaft are meshed with each other, the sliding surface is scratched, and the screw feeding accuracy is lowered.
【０００５】また、ねじによる駆動伝達効率を高めるた
めに、台形ねじのハーフナットを採用しようとすると、
旋盤によるねじ切削、フライス盤による外形および穴加
工を行なわなければならず、製造コストがかかりすぎる
という問題がある。In addition, if a half nut of a trapezoidal screw is adopted in order to improve the drive transmission efficiency by the screw,
Screw cutting with a lathe and outer shape and hole processing with a milling machine must be performed, which causes a problem of too high manufacturing cost.
【０００６】本発明は、このような問題に対処するため
になされたもので、ねじとナット間の潤滑をメンテナン
スフリーにするとともに、摺動時に発生する騒音を抑
え、ハーフナットとねじ軸との噛み合い性を向上させ、
さらに製造コストを下げることができるシリンジポンプ
用送りねじおよびこの送りねじを用いたシリンジポンプ
の提供を目的とする。The present invention has been made in order to solve such a problem, and makes maintenance between the screw and the nut maintenance-free, suppresses noise generated at the time of sliding, and makes the half nut and the screw shaft compatible. Improves meshing,
Further, it is an object of the present invention to provide a feed screw for a syringe pump that can reduce the manufacturing cost and a syringe pump using the feed screw.
【０００７】[0007]
【課題を解決するための手段】本発明のシリンジポンプ
用送りねじは、送りねじに係合する直線運動可能なスラ
イダーによりシリンジの押子を駆動することでシリンジ
内の薬液を送出するシリンジポンプに用いられ、上記送
りねじを構成するナットが合成樹脂の成形体からなるハ
ーフナットであることを特徴とする。また、上記送りね
じが台形ねじであることを特徴とする。また、台形ねじ
における上記合成樹脂製ハーフナットのねじ山先端角部
の面取りを、日本工業規格Ｂ０２１６に規定するメート
ル台形ねじのひっかかりの高さＨ1に対して、（ 0.1〜
0.5 ）Ｈ1とすることを特徴とする。また、上記ナット
が固体潤滑材入りポリフェニレンスルフィド樹脂組成物
の成形体であることを特徴とする。The feed screw for a syringe pump of the present invention is a syringe pump for delivering a drug solution in a syringe by driving a pusher of the syringe by a linearly movable slider engaging with the feed screw. It is characterized in that the nut used to form the feed screw is a half nut made of a synthetic resin molded body. The feed screw is a trapezoidal screw. Further, the chamfering of the thread tip corner portion of the above synthetic resin half nut in the trapezoidal screw is (0.1 to 0.1) with respect to the catching height H 1 of the metric trapezoidal screw defined in Japanese Industrial Standard B0216.
It is characterized in that it is 0.5) H 1 . Further, the nut is a molded product of a polyphenylene sulfide resin composition containing a solid lubricant.
【０００８】本発明のシリンジポンプは、上述した送り
ねじに係合する直線運動可能なスライダーによりシリン
ジの押子を駆動することでシリンジ内の薬液を送出する
シリンジポンプであることを特徴とする。上述した本発
明の送りねじを用いることにより、合成樹脂製のハーフ
ナットとねじ軸との螺合となるので、シリンジポンプの
無潤滑化が可能となリ、またねじ軸との噛み合い性に優
れる。The syringe pump of the present invention is characterized in that it is a syringe pump for delivering the drug solution in the syringe by driving the pusher of the syringe by means of the linearly movable slider engaging with the above-mentioned feed screw. By using the above-described feed screw of the present invention, since the half nut made of synthetic resin and the screw shaft are screwed together, it is possible to make the syringe pump non-lubricated, and it is also excellent in meshability with the screw shaft. .
【０００９】[0009]
【発明の実施の形態】本発明のシリンジポンプの一例を
図１により説明する。図１はシリンジポンプの構成例を
示す。シリンジポンプ１は、押子２ａが内挿されたシリ
ンジ２を着脱自在に保持する手段５と、シリンジ２内の
薬液を送出するためのスライダー４と、スライダー４に
係合して直線運動させる送りねじ３とから構成される。
６は送りねじ３を回転駆動させるためのモータである。BEST MODE FOR CARRYING OUT THE INVENTION An example of a syringe pump of the present invention will be described with reference to FIG. FIG. 1 shows a configuration example of a syringe pump. The syringe pump 1 includes means 5 for detachably holding the syringe 2 in which the pusher 2a is inserted, a slider 4 for delivering the drug solution in the syringe 2, and a feed for linear movement by engaging the slider 4. It is composed of a screw 3.
Reference numeral 6 is a motor for rotating the feed screw 3.
【００１０】シリンジ２を着脱自在に保持する手段５
は、メーカーが異なる、あるいは大きさが異なるシリン
ジ２であっても薬液注入時に固定できる手段であればよ
く、例えばクランプ、ばね力などを利用して固定する。Means 5 for holding the syringe 2 detachably
Can be fixed even when the syringes 2 made by different manufacturers or different sizes are fixed at the time of injecting the drug solution. For example, the clamps can be fixed by using a spring force or the like.
【００１１】スライダー４は、その一端をシリンジ２と
平行に配置された送りねじ３のハーフナット３ａに、他
端を該シリンジの押子２ａにそれぞれ固定して、送りね
じ３の移動とともに押子２ａを前進後退させる。例え
ば、送りねじ３のハーフナット３ａは歯車６ａ、６ｂを
介してモータ６と係合し、モータ６の駆動により押子２
ａが所定の速度で所定の区間押されて薬液を送出する。The slider 4 has one end fixed to the half nut 3a of the feed screw 3 arranged in parallel with the syringe 2 and the other end fixed to the pusher 2a of the syringe, so that the pusher 3 moves as the feed screw 3 moves. Move 2a forward and backward. For example, the half nut 3a of the feed screw 3 is engaged with the motor 6 via the gears 6a and 6b, and the pusher 2 is driven by driving the motor 6.
a is pushed at a predetermined speed for a predetermined section to deliver the chemical solution.
【００１２】ハーフナット３ａは、送りねじのナットを
軸方向断面において二分割したナットであり、薬液送出
時には、送りねじ３とスライダー４とが連動するよう
に、また、シリンジポンプ交換時等には、断絶できるよ
うに設定する。例えば、ハーフナット３ａを送りねじ３
に脱着することによってモータ６の駆動をスライダー４
に伝達させたり断絶させたりできる。The half nut 3a is a nut obtained by dividing the nut of the feed screw into two parts in the axial cross section, so that the feed screw 3 and the slider 4 are interlocked at the time of delivering the chemical liquid, and when the syringe pump is replaced. , Set to be able to disconnect. For example, the half nut 3a is attached to the feed screw 3
The motor 6 can be driven by moving the slider 4
Can be transmitted or disconnected.
【００１３】ハーフナット３ａの一部拡大断面図を図２
に示す。ハーフナット３ａは送りねじ３との係合・解除
を容易にできるように、台形ねじを用い、さらに台形ね
じにおけるハーフナットのねじ山先端角部の面取りＲ
を、日本工業規格Ｂ０２１６に規定するメートル台形ね
じのひっかかりの高さＨ1に対して、（ 0.1〜0.5 ）Ｈ1
とする。面取りＲが 0.1Ｈ1未満であると、送りねじと
の脱着時にナットのねじ山先端部が損傷する恐れがあ
る。0.5Ｈ1をこえると駆動伝達効率が低下する。本発明
の送りねじは、台形ねじを用いるので送りねじによる駆
動伝達効率が高まり、また、ハーフナットのねじ山先端
角部の面取りＲを所定の大きさとすることにより、送り
ねじとの係合・解除が容易となる。FIG. 2 is a partially enlarged sectional view of the half nut 3a.
Shown in. The half nut 3a uses a trapezoidal screw so that the half nut 3a can be easily engaged and disengaged with the feed screw 3. Further, the chamfered corner portion R of the half nut of the trapezoidal screw
Is (0.1 to 0.5) H 1 with respect to the height H 1 of the trapezoid of the metric trapezoidal screw specified in Japanese Industrial Standard B0216.
And If the chamfer R is less than 0.1H 1 , the tip of the thread of the nut may be damaged during the attachment / detachment with the feed screw. If it exceeds 0.5H 1 , the drive transmission efficiency will decrease. Since the feed screw of the present invention uses a trapezoidal screw, the drive transmission efficiency by the feed screw is enhanced, and the chamfer R at the tip end of the thread of the half nut is set to a predetermined size to engage with the feed screw. It becomes easy to release.
【００１４】本発明の送りねじは、ハーフナットが合成
樹脂の成形体からなリ、軸がステンレスなどの金属製で
あることが好ましい。合成樹脂の中でも固体潤滑材入り
樹脂組成物が好ましく、固体潤滑材入りポリフェニレン
スルフィド樹脂組成物が特に好ましい。市販品として
は、ベアリーＡＳ５０００（ＮＴＮ精密樹脂社製、商品
名）が挙げられる。In the feed screw of the present invention, it is preferable that the half nut is made of a synthetic resin molded body and the shaft is made of metal such as stainless steel. Among synthetic resins, a resin composition containing a solid lubricant is preferable, and a polyphenylene sulfide resin composition containing a solid lubricant is particularly preferable. As a commercially available product, Beary AS5000 (trade name, manufactured by NTN Precision Resins Co., Ltd.) can be mentioned.
【００１５】[0015]
【実施例】実施例
日本工業規格Ｂ０２１６に規定するメートル台形ねじ
（ＪＩＳ Ｔｒ８×１．５）のハーフナットをベアリー
ＡＳ５０００を用いて射出成形した。ねじ山先端角部の
面取りＲを 0.3mm に設定した。得られたハーフナット
と、ステンレス製軸とを組み合わせて送りねじを作製
し、ねじ軸の駆動源パルスモータにトルク検出装置を連
結して動トルクを測定した。結果を表１に示す。EXAMPLES Example A half nut of a metric trapezoidal screw (JIS Tr8 × 1.5) specified in Japanese Industrial Standard B0216 was injection-molded using a BEAREE AS5000. The chamfer R at the corner of the thread tip was set to 0.3 mm. A feed screw was produced by combining the obtained half nut and a stainless steel shaft, and a torque detection device was connected to a driving motor pulse motor of the screw shaft to measure a dynamic torque. The results are shown in Table 1.
【００１６】比較例
真ちゅう製ハーフナットおよびステンレス製軸を組み合
わせて、日本工業規格Ｂ０２１６に規定するメートル台
形ねじ（ＪＩＳ Ｔｒ８×１．５）を作製した。真ちゅ
う製ハーフナットは旋盤による切削加工、フライス盤に
よる外形および穴加工により作製し、ねじ山先端角部の
面取りＲを 0.05mm に設定した。得られた送りねじにグ
リースを塗布して、そのねじ軸の駆動源パルスモータに
トルク検出装置を連結して動トルクを測定した。結果を
表１に示す。Comparative Example A brass half nut and a stainless steel shaft were combined to produce a metric trapezoidal screw (JIS Tr8 × 1.5) specified in Japanese Industrial Standard B0216. The brass half nuts were manufactured by cutting with a lathe, external shape and hole with a milling machine, and the chamfer R of the thread tip corner was set to 0.05 mm. Grease was applied to the obtained feed screw, and a torque detection device was connected to the drive source pulse motor of the screw shaft to measure the dynamic torque. The results are shown in Table 1.
【００１７】[0017]
【表１】 [Table 1]
【００１８】表１に示すように、樹脂製ハーフナットと
ステンレス軸とを組み合わせた実施例は、比較例より動
トルクが低く、摺動特性に優れていた。As shown in Table 1, the examples in which the resin half nut and the stainless steel shaft were combined had lower dynamic torque and superior sliding characteristics than the comparative examples.
【００１９】実施例および比較例の噛み合い性を比較し
たところ、比較例では、ねじ軸との噛み合い時に金属バ
リが発生したが、実施例では発生しなかった。When the meshing properties of the example and the comparative example were compared, in the comparative example, metal burr was generated at the time of meshing with the screw shaft, but it was not generated in the example.
【００２０】[0020]
【発明の効果】本発明のシリンジポンプ用送りねじは、
該送りねじを構成するナットが合成樹脂の成形体からな
るハーフナットであるので、ねじ軸との噛み合い時に発
生する金属バリがない。また、送りねじが台形ねじであ
るので、駆動伝達効率に優れる。また、台形ねじにおけ
る上記合成樹脂製ハーフナットのねじ山先端角部の面取
りを所定の面取りとするので、ねじ軸との噛み合い性に
優れる。上記ナットが固体潤滑材入りポリフェニレンス
ルフィド樹脂組成物の成形体であるので摺動性に優れ
る。The feed screw for a syringe pump of the present invention is
Since the nut forming the feed screw is a half nut made of a molded body of synthetic resin, there is no metal burr that occurs when meshing with the screw shaft. Further, since the feed screw is a trapezoidal screw, the drive transmission efficiency is excellent. Further, since the chamfering of the tip end portion of the thread of the synthetic resin half nut in the trapezoidal screw is set to a predetermined chamfer, the meshability with the screw shaft is excellent. Since the nut is a molded product of the polyphenylene sulfide resin composition containing a solid lubricant, it has excellent slidability.
【００２１】本発明のシリンジポンプは、上述した合成
樹脂製ハーフナットの送りねじを用いるので、シリンジ
ポンプの無潤滑化が可能となる。Since the syringe pump of the present invention uses the above-mentioned synthetic resin half nut feed screw, the syringe pump can be lubricated.
【図１】シリンジポンプの構成例を示す図である。FIG. 1 is a diagram showing a configuration example of a syringe pump.
【図２】ハーフナットの断面図である。FIG. 2 is a sectional view of a half nut.
【符号の説明】 １ シリンジポンプ ２ シリンジ ３ 送りねじ ４ スライダー ５ シリンジ保持手段 ６ モータ[Explanation of symbols] 1 syringe pump 2 syringes 3 Lead screw 4 slider 5 Syringe holding means 6 motor
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3J062 AA31 AB21 AC07 BA11 BA26 BA31 CD02 CD22 CD27 CD45 CD54 4C066 AA09 BB01 CC01 DD12 EE14 HH03 HH30 ─────────────────────────────────────────────────── ─── Continued front page F-term (reference) 3J062 AA31 AB21 AC07 BA11 BA26 BA31 CD02 CD22 CD27 CD45 CD54 4C066 AA09 BB01 CC01 DD12 EE14 HH03 HH30
Claims (5)
イダーによりシリンジの押子を駆動することでシリンジ
内の薬液を送出するシリンジポンプに用いられるシリン
ジポンプ用送りねじであって、 前記送りねじを構成するナットが合成樹脂の成形体から
なるハーフナットであることを特徴とするシリンジポン
プ用送りねじ。1. A feed screw for a syringe pump used in a syringe pump for delivering a drug solution in a syringe by driving a pusher of a syringe by a slider which is linearly movable and which engages with the feed screw. The feed screw for a syringe pump, wherein the nut constituting the is a half nut made of a molded body of synthetic resin.
徴とする請求項１記載のシリンジポンプ用送りねじ。2. The feed screw for a syringe pump according to claim 1, wherein the feed screw is a trapezoidal screw.
端角部の面取りを、日本工業規格Ｂ０２１６に規定する
規定するメートル台形ねじのひっかかりの高さＨ1に対
して、（ 0.1〜0.5 ）Ｈ1とすることを特徴とする請求
項２記載のシリンジポンプ用送りねじ。3. The chamfering of the thread tip corner portion of the synthetic resin half nut is (0.1 to 0.5) H with respect to the catching height H 1 of the metric trapezoidal screw specified in Japanese Industrial Standard B0216. The feed screw for a syringe pump according to claim 2, wherein the feed screw is 1.
ニレンスルフィド樹脂組成物であることを特徴とする請
求項１、請求項２、または請求項３記載のシリンジポン
プ用送りねじ。4. The feed screw for a syringe pump according to claim 1, 2 or 3, wherein the synthetic resin is a polyphenylene sulfide resin composition containing a solid lubricant.
イダーによりシリンジの押子を駆動することでシリンジ
内の薬液を送出するシリンジポンプであって、 前記送りねじが請求項１ないし請求項４のいずれか一項
記載のシリンジポンプ用送りねじであることを特徴とす
るシリンジポンプ。5. A syringe pump for delivering a drug solution in a syringe by driving a pusher of a syringe by a slider which is linearly movable and which engages with the feed screw, wherein the feed screw is a feed pump. A syringe pump, which is the feed screw for a syringe pump according to claim 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001241062A JP3931060B2 (en) | 2001-08-08 | 2001-08-08 | Syringe pump lead screw and syringe pump |
| DE2002135468 DE10235468A1 (en) | 2001-08-08 | 2002-08-02 | Syringe pump, useful for rate controlled administration of various injectable liquids, comprises a feedscrew nut consisting of a synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001241062A JP3931060B2 (en) | 2001-08-08 | 2001-08-08 | Syringe pump lead screw and syringe pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003056667A true JP2003056667A (en) | 2003-02-26 |
| JP3931060B2 JP3931060B2 (en) | 2007-06-13 |
Family
ID=19071575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001241062A Expired - Lifetime JP3931060B2 (en) | 2001-08-08 | 2001-08-08 | Syringe pump lead screw and syringe pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3931060B2 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005100219A1 (en) * | 2004-04-05 | 2005-10-27 | Justin Co., Ltd. | Web guide device |
| JP2006105198A (en) * | 2004-10-01 | 2006-04-20 | Ntn Corp | Feed screw for syringe pump |
| JP2007033417A (en) * | 2005-07-21 | 2007-02-08 | Dyadic Systems Co Ltd | Mass production-use apparatus for dimensional inspection of machined part |
| JP2010536083A (en) * | 2007-08-09 | 2010-11-25 | ケイエスアール テクノロジーズ カンパニー | Small pedal assembly with improved noise control |
| CN102444776A (en) * | 2010-10-12 | 2012-05-09 | 彭道琪 | Grease pressing pump |
| CN103994043A (en) * | 2014-05-14 | 2014-08-20 | 苏州农业职业技术学院 | Transmission type hydraulic pump with crank connecting rod structure |
| CN105126204A (en) * | 2015-08-04 | 2015-12-09 | 深圳康罗技术有限公司 | Transmission structure of medical injection pump |
| CN105688736A (en) * | 2016-04-13 | 2016-06-22 | 北京赛奇科科技有限公司 | Handheld duplex mixing drive device, dosing apparatus and dosing method |
| JP2016125516A (en) * | 2014-12-26 | 2016-07-11 | 本田技研工業株式会社 | Telescopic actuator |
| WO2017002870A1 (en) * | 2015-06-30 | 2017-01-05 | ミネベア株式会社 | Screw structure, feeding device, medical apparatus, and infusion pump |
| CN106838586A (en) * | 2017-04-07 | 2017-06-13 | 山东固润工程技术有限公司 | A kind of door machine exposed gear automatic lubrication installation |
| CN109621094A (en) * | 2018-12-10 | 2019-04-16 | 姜进涛 | A kind of syringe accessory device |
| CN113117190A (en) * | 2019-05-17 | 2021-07-16 | 上海移宇科技股份有限公司 | High-reliability single-side driving drug infusion device |
| CN117400530A (en) * | 2023-11-15 | 2024-01-16 | 四川大学 | Multi-material photo-curing 3D printing system and method with liquid level height controlled |
-
2001
- 2001-08-08 JP JP2001241062A patent/JP3931060B2/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005100219A1 (en) * | 2004-04-05 | 2005-10-27 | Justin Co., Ltd. | Web guide device |
| JP2006105198A (en) * | 2004-10-01 | 2006-04-20 | Ntn Corp | Feed screw for syringe pump |
| JP4573615B2 (en) * | 2004-10-01 | 2010-11-04 | Ｎｔｎ株式会社 | Syringe pump feed screw |
| JP2007033417A (en) * | 2005-07-21 | 2007-02-08 | Dyadic Systems Co Ltd | Mass production-use apparatus for dimensional inspection of machined part |
| JP2010536083A (en) * | 2007-08-09 | 2010-11-25 | ケイエスアール テクノロジーズ カンパニー | Small pedal assembly with improved noise control |
| CN102444776A (en) * | 2010-10-12 | 2012-05-09 | 彭道琪 | Grease pressing pump |
| CN103994043A (en) * | 2014-05-14 | 2014-08-20 | 苏州农业职业技术学院 | Transmission type hydraulic pump with crank connecting rod structure |
| JP2016125516A (en) * | 2014-12-26 | 2016-07-11 | 本田技研工業株式会社 | Telescopic actuator |
| JPWO2017002870A1 (en) * | 2015-06-30 | 2018-04-19 | ミネベアミツミ株式会社 | Screw structure, feeding device, medical device, and infusion pump |
| WO2017002870A1 (en) * | 2015-06-30 | 2017-01-05 | ミネベア株式会社 | Screw structure, feeding device, medical apparatus, and infusion pump |
| CN105126204A (en) * | 2015-08-04 | 2015-12-09 | 深圳康罗技术有限公司 | Transmission structure of medical injection pump |
| CN105688736A (en) * | 2016-04-13 | 2016-06-22 | 北京赛奇科科技有限公司 | Handheld duplex mixing drive device, dosing apparatus and dosing method |
| CN106838586A (en) * | 2017-04-07 | 2017-06-13 | 山东固润工程技术有限公司 | A kind of door machine exposed gear automatic lubrication installation |
| CN106838586B (en) * | 2017-04-07 | 2019-01-04 | 山东固润工程技术有限公司 | A kind of door machine exposed gear automatic lubrication installation |
| CN109621094A (en) * | 2018-12-10 | 2019-04-16 | 姜进涛 | A kind of syringe accessory device |
| CN113117190A (en) * | 2019-05-17 | 2021-07-16 | 上海移宇科技股份有限公司 | High-reliability single-side driving drug infusion device |
| CN117400530A (en) * | 2023-11-15 | 2024-01-16 | 四川大学 | Multi-material photo-curing 3D printing system and method with liquid level height controlled |
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