CN107202219B - Medical fluid quick coupler - Google Patents
Medical fluid quick coupler Download PDFInfo
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- CN107202219B CN107202219B CN201710414492.2A CN201710414492A CN107202219B CN 107202219 B CN107202219 B CN 107202219B CN 201710414492 A CN201710414492 A CN 201710414492A CN 107202219 B CN107202219 B CN 107202219B
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- hole
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- sliding rod
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- fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
- F16L37/38—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings
- F16L37/40—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings with a lift valve being opened automatically when the coupling is applied
Abstract
The invention relates to a medical fluid quick coupler which comprises a connector seat, a sliding block and an elastic return piece. The connector seat is internally provided with a cavity and a first through hole communicated with the cavity. The sliding block is slidably disposed in the chamber, and the sliding block has a sliding rod capable of sliding back and forth in the first through hole. The end face of the sliding rod extends inwards to form a first fluid hole, and the side wall of the sliding rod is provided with a second fluid hole. The elastic return piece is in transmission connection with the sliding block. The connector is inserted into the first through hole, the connector pushes the sliding rod to move into the cavity, the second fluid hole is communicated with the cavity, and high-pressure fluid in the cavity enters the ablation needle through the second fluid hole. After the connector is pulled out, the sliding block is reset under the elastic action of the elastic return piece, the sliding rod moves into the first through hole, and high-pressure fluid in the cavity cannot leak outwards. The invention can quickly realize that the ablation needle head is connected to the ablation equipment, and has higher working efficiency.
Description
Technical Field
The invention relates to a coupler, in particular to a medical fluid quick coupler.
Background
Traditional ablation equipment belongs to multi-use equipment, and an ablation needle entering a body belongs to disposable consumable materials. The ablation needle head needs to be sterilized and packaged before operation, is opened during operation and is connected with the ablation device through the coupler, and the ablation device is used for introducing high-pressure fluid into the ablation needle head through the coupler. However, the conventional coupler is difficult to rapidly connect the ablation needle to the ablation device, and has low working efficiency under the condition of ensuring sealing performance.
Disclosure of Invention
Based on this, it is necessary to overcome the drawbacks of the prior art and to provide a medical fluid quick coupler which allows to easily and quickly realize the connection of the ablation needle to the ablation device, with a high working efficiency.
The technical scheme is as follows: a medical fluid quick coupler comprising: the ablation device comprises a connector seat, a first connecting rod and a second connecting rod, wherein a cavity and a first through hole communicated with the cavity are arranged in the connector seat, and the cavity is used for being communicated to ablation equipment; a sliding block slidably disposed in the chamber, the sliding block having a sliding rod capable of sliding back and forth in the first through hole, an end surface of the sliding rod extending inward along an axial direction of the sliding rod to form a first fluid hole, a side wall of the sliding rod being provided with a second fluid hole communicating with the first fluid hole; the elastic return piece is arranged in the cavity and is in transmission connection with the sliding block; when the elastic return piece is in a general state, the sliding rod is positioned in the first through hole, and the side wall of the first through hole is in sealing fit with the second fluid hole; the second fluid orifice is in communication with the chamber when the elastic return is in a compressed state.
When the medical fluid quick coupler is used, the connector for connecting the ablation needle is inserted into the first through hole, the connector pushes the sliding rod to move into the cavity, the second fluid hole on the sliding rod is communicated with the cavity, and high-pressure fluid in the cavity enters the ablation needle through the second fluid hole, the first fluid hole and the connector. After the connector is pulled out, the sliding block is reset under the elastic action of the elastic return piece, the sliding rod moves into the first through hole, the second fluid hole is in sealing fit with the side wall of the first through hole, and high-pressure fluid in the cavity cannot leak outwards. Therefore, the medical fluid quick coupler can quickly realize that the ablation needle head is connected to the ablation equipment, and the working efficiency is higher.
In one embodiment, the medical fluid quick coupler further comprises a connector, one end of the connector is used for being connected to an ablation needle, and the other end of the connector is provided with an insertion tube capable of being inserted into the first through hole. So, connect after one end connection ablation syringe needle, connect the grafting pipe direct insertion of the other end to first through-hole in, the grafting pipe promotes the slide bar to the cavity in, and grafting pipe and first fluid hole, second fluid hole intercommunication to realize leading into the ablation syringe needle with the high-pressure fluid of ablation equipment in, the operation is comparatively convenient.
In one embodiment, the medical fluid quick coupler further comprises a locking member, wherein the outer side wall of the joint is provided with a fixing plate, and the locking member is used for fixing the fixing plate on the connector base. After the plug tube pushes the sliding rod to be inserted into the first through hole, the fixing plate is fixed on the connector base through the locking piece, so that the connector cannot be separated from the connector base under the thrust of high-pressure fluid.
In one embodiment, the medical fluid quick coupler further comprises a sealing ring and a sealing material pressing block, wherein the side wall, close to the first through hole, of the cavity is provided with a mounting groove, the sealing ring is arranged in the mounting groove, the sealing material pressing block is fixedly arranged in the cavity and is in contact with the sealing ring, and the sealing material pressing block is provided with a second through hole for the sliding rod to pass through. When the elastic restoring piece is in a general state, the sealing ring and the sealing material pressing block are sleeved outside the sliding rod, so that a good sealing effect can be achieved, and high-pressure fluid in the cavity is prevented from leaking. When the elastic return piece is in a compressed state, the sealing ring and the sealing material pressing block are sleeved outside the plug-in pipe, so that a good sealing effect can be achieved, and high-pressure fluid in the cavity is prevented from leaking. In addition, after the sealing ring is arranged in the mounting groove, the sealing material pressing block is arranged in the cavity, and the sealing ring is fixed in the mounting groove through the sealing material pressing block, so that the mounting operation of the sealing ring is facilitated. In other embodiments, a seal ring clamping groove can be formed on the side wall of the cavity or the side wall of the first through hole, and the seal ring is clamped in the seal ring clamping groove.
In one embodiment, the seal ring is an O-ring seal; the sealing ring is an elastic sealing ring. Therefore, after the sealing ring is sleeved on the outer side wall of the sliding rod or the outer side wall of the plug-in pipe, the sealing ring is convenient to elastically deform, and the sealing ring has a good sealing effect.
In one embodiment, the inner diameter of the sealing ring is 0.05mm to 0.25mm smaller than the outer diameter of the sliding rod or the plug tube. So, after the sealing ring is sleeved on the outer side wall of the sliding rod or the outer side wall of the plug-in pipe, the sealing ring is convenient to generate elastic deformation of 0.05mm to 0.25mm, the sealing ring has a good sealing effect, and meanwhile, the clamping force of the sealing ring on the outer side wall of the sliding rod or the plug-in pipe is not too large, so that the sliding rod or the plug-in pipe can move in the axial direction of the first through hole conveniently.
In one embodiment, the elastic return member is a spring, one end of the spring is connected to the sliding block, and the other end of the spring is connected to the side wall of the chamber.
A medical fluid quick coupler comprising: the ablation device comprises a connector seat, a first connecting rod and a second connecting rod, wherein a cavity and a first through hole communicated with the cavity are arranged in the connector seat, and the cavity is used for being communicated to ablation equipment; a sliding block slidably disposed in the chamber, the sliding block having a sliding rod capable of sliding back and forth in the first through hole, an end surface of the sliding rod extending inward along an axial direction of the sliding rod to form a first fluid hole, a side wall of the sliding rod being provided with a second fluid hole communicating with the first fluid hole; the sealing ring is fixedly arranged in the first through hole or the cavity, the sealing ring is sleeved on the outer side wall of the sliding rod, and the sliding rod can slide relative to the sealing ring in the axial direction of the first through hole; the elastic return piece is arranged in the cavity and is in transmission connection with the sliding block; when the elastic return piece is in a normal state, the sealing ring is closer to the elastic return piece relative to the second fluid hole; when the elastic return piece is in a compressed state, the sealing ring is far away from the elastic return piece relative to the second fluid hole, and the second fluid hole is communicated with the cavity.
When the medical fluid quick coupler is used, the connector for connecting the ablation needle is inserted into the first through hole, the connector pushes the sliding rod to move into the cavity, the second fluid hole on the sliding rod is communicated with the cavity, and high-pressure fluid in the cavity enters the ablation needle through the second fluid hole, the first fluid hole and the connector. After the connector is pulled out, the sliding block is reset under the elastic action of the elastic return piece, the sliding rod moves into the first through hole, the sealing ring is in sealing fit with the outer side wall of the sliding rod, and high-pressure fluid in the cavity cannot leak outwards. Therefore, the medical fluid quick coupler can quickly realize that the ablation needle head is connected to the ablation equipment, and the working efficiency is higher.
In one embodiment, the medical fluid quick coupler further comprises a sealing material pressing block, a mounting groove is formed in the side wall, close to the first through hole, of the cavity, the sealing ring is arranged in the mounting groove, the sealing material pressing block is fixedly arranged in the cavity and is in contact with the sealing ring, and the sealing material pressing block is provided with a second through hole for the sliding rod to pass through. When the elastic restoring piece is in a general state, the sealing ring and the sealing material pressing block are sleeved outside the sliding rod, so that a good sealing effect can be achieved, and high-pressure fluid in the cavity is prevented from leaking. When the elastic return piece is in a compressed state, the sealing ring and the sealing material pressing block are sleeved outside the plug-in pipe, so that a good sealing effect can be achieved, and high-pressure fluid in the cavity is prevented from leaking. In addition, after the sealing ring is arranged in the mounting groove, the sealing material pressing block is arranged in the cavity, and the sealing ring is fixed in the mounting groove through the sealing material pressing block, so that the mounting operation of the sealing ring is facilitated.
A medical fluid quick coupler comprising: the ablation device comprises a connector seat, a first connecting rod and a second connecting rod, wherein a cavity and a first through hole communicated with the cavity are arranged in the connector seat, and the cavity is used for being communicated to ablation equipment; a slider slidably disposed in the chamber, the slider having a slider rod capable of sliding back and forth in the first through hole; the elastic return piece is arranged in the cavity and is in transmission connection with the sliding block; the connector is characterized by comprising a connector, wherein one end of the connector is used for being connected to an ablation needle, the other end of the connector is provided with an insertion tube which can be inserted into the first through hole, and the outer side wall of one end of the insertion tube, which is far away from the ablation needle, is provided with a third fluid hole; when the elastic return piece is in a normal state, the sliding rod is positioned in the first through hole, and the outer side wall of the sliding rod is in sealing fit with the inner side wall of the first through hole; when the plug tube is inserted into the first through hole to enable the elastic recovery piece to be in a compressed state, the third fluid hole is communicated with the cavity.
When the medical fluid quick coupler is used, the connector for connecting the ablation needle is inserted into the first through hole, the connector pushes the sliding rod to move into the cavity, the third fluid hole on the connector is communicated with the cavity, and high-pressure fluid in the cavity enters the ablation needle through the third fluid hole. After the connector is pulled out, the sliding block is reset under the elastic action of the elastic return piece, the sliding rod moves into the first through hole, the outer side wall of the sliding rod is in sealing fit with the inner side wall of the first through hole, and high-pressure fluid in the cavity cannot leak outwards. Therefore, the medical fluid quick coupler can quickly realize that the ablation needle head is connected to the ablation equipment, and the working efficiency is higher.
Drawings
FIG. 1 is a schematic view showing the state of the elastic restoring member in the medical fluid quick coupler according to one embodiment of the present invention in a general state;
FIG. 2 is a schematic view of the elastic return member of the medical fluid quick coupler according to one embodiment of the present invention in a compressed state;
FIG. 3 is a schematic view showing the state of the elastic restoring member in the medical fluid quick coupler according to another embodiment of the present invention in a general state;
fig. 4 is a schematic view showing a state in which the elastic restoring member is in a general state in a medical fluid quick coupler according to still another embodiment of the present invention.
10. The connector comprises a connector seat, 11, a chamber, 12, a first through hole, 13, a mounting groove, 20, a sliding block, 21, a sliding rod, 211, a first fluid hole, 212, a second fluid hole, 30, an elastic return piece, 40, a connector, 41, a plug tube, 411, a third fluid hole, 42, a fixing plate, 50, a locking piece, 60, a sealing ring, 70, a sealing material pressing block, 71 and a second through hole.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
It should be noted that in the above-described embodiment, when one element is considered to be "connected" to another element, it may be directly connected to the other element or intermediate elements may be present at the same time. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.
As shown in fig. 1 to 3, a medical fluid quick coupler, comprising: connector base 10, slider 20 and elastic return 30. The connector base 10 is provided with a chamber 11 and a first through hole 12 communicated with the chamber 11. The chamber 11 is for communication to an ablation device. The slide block 20 is slidably disposed in the chamber 11, and the slide block 20 has a slide rod 21 capable of sliding back and forth in the first through hole 12. The end surface of the sliding rod 21 is formed with a first fluid hole 211 extending inward along the axial direction of the sliding rod 21, and the side wall of the sliding rod 21 is provided with a second fluid hole 212 communicating with the first fluid hole 211. The elastic return member 30 is disposed in the chamber 11, and the elastic return member 30 is in driving connection with the slider 20. Wherein, when the elastic restoring member 30 is in a normal state, the sliding rod 21 is located in the first through hole 12, and the side wall of the first through hole 12 is in sealing engagement with the second fluid hole 212. The second fluid orifice 212 communicates with the chamber 11 when the elastic return 30 is in a compressed state. In this embodiment, the general state refers to: before the operation, the connector holder 10 is elastically returned to the state in which the connector 40 is not inserted.
When the medical fluid quick coupler is used, the connector 40 for connecting an ablation needle is inserted into the first through hole 12, the connector 40 pushes the sliding rod 21 to move into the cavity 11, the second fluid hole 212 on the sliding rod 21 is communicated with the cavity 11, and high-pressure fluid in the cavity 11 enters the ablation needle through the second fluid hole 212, the first fluid hole 211 and the connector 40. After the connector 40 is pulled out, the sliding block 20 is restored under the elastic force of the elastic restoring piece 30, the sliding rod 21 moves into the first through hole 12, the second fluid hole 212 is in sealing fit with the side wall of the first through hole 12, and the high-pressure fluid in the chamber 11 cannot leak outwards. Therefore, the medical fluid quick coupler can quickly realize that the ablation needle head is connected to the ablation equipment, and the working efficiency is higher.
In addition, the medical fluid quick coupler includes a fitting 40. One end of the connector 40 is used for connecting to an ablation needle, and the other end of the connector 40 is provided with a plugging tube 41 which can be inserted into the first through hole 12. So, after connecting the ablation syringe needle in joint 40 one end, the grafting pipe 41 direct insertion of joint 40 other end is in first through-hole 12, and grafting pipe 41 promotes the slide bar 21 to cavity 11 in, and grafting pipe 41 and first fluid hole 211, second fluid hole 212 intercommunication to the realization is with the high-pressure fluid of ablation equipment leading into the ablation syringe needle in, the operation is comparatively convenient.
Further, the medical fluid quick coupler also includes a locking member 50. The outer side wall of the joint 40 is provided with a fixing plate 42, and the locking member 50 is used for fixing the fixing plate 42 on the connector base 10. After the insertion tube 41 pushes the slide rod 21 to be inserted into the first through hole 12, the fixing plate 42 is fixed to the connector holder 10 by the locking member 50, so that the joint 40 cannot be separated from the connector holder 10 by the pushing force of the high-pressure fluid.
In this embodiment, the medical fluid quick coupler further includes a seal ring 60 and a seal material pressing block 70. The side wall of the chamber 11, which is close to the first through hole 12, is provided with a mounting groove 13, and the sealing ring 60 is mounted in the mounting groove 13. The sealing material pressing block 70 is fixedly arranged in the chamber 11 and is abutted against the sealing ring 60. The sealing material pressing block 70 is provided with a second through hole 71 for the sliding rod 21 to pass through. When the elastic return piece 30 is in a normal state, the sealing ring 60 and the sealing material pressing block 70 are sleeved outside the sliding rod 21, so that a good sealing effect can be achieved, and high-pressure fluid in the chamber 11 is prevented from leaking. When the elastic return piece 30 is in a compressed state, the sealing ring 60 and the sealing material pressing block 70 are sleeved outside the plug tube 41, so that a good sealing effect can be achieved, and high-pressure fluid in the chamber 11 is prevented from leaking. In addition, after the seal ring 60 is installed in the installation groove 13, the sealing material pressing block 70 is installed in the chamber 11, and the seal ring 60 is fixed in the installation groove 13 by the sealing material pressing block 70, so that the installation operation of the seal ring 60 is facilitated. In other embodiments, a groove of the sealing ring 60 may be provided on the sidewall of the chamber 11 or the sidewall of the first through hole 12, and the sealing ring 60 is clamped in the groove of the sealing ring 60.
In this embodiment, the seal ring 60 is an O-ring seal 60; the seal ring 60 is an elastic seal ring 60. Therefore, after the sealing ring 60 is sleeved on the outer side wall of the sliding rod 21 or the outer side wall of the insertion pipe 41, the sealing ring 60 is convenient to elastically deform, and a good sealing effect is achieved.
Further, the inner diameter of the seal ring 60 is smaller than the outer diameter of the slide rod 21 or the outer diameter of the socket pipe 41 by 0.05mm to 0.25mm. So, after the sealing ring 60 is sleeved on the outer side wall of the sliding rod 21 or the outer side wall of the plug tube 41, the sealing ring 60 is convenient to elastically deform by 0.05mm to 0.25mm, and has a good sealing effect, and meanwhile, the clamping force of the sealing ring 60 on the outer side wall of the sliding rod 21 or the plug tube 41 is not too large, so that the sliding rod 21 or the plug tube 41 can move in the axial direction of the first through hole 12 conveniently.
In this embodiment, the elastic return member 30 is a spring, one end of the spring is connected to the sliding block 20, and the other end of the spring is connected to the side wall of the chamber 11.
Referring again to fig. 3, fig. 3 is a schematic view showing a state in which the elastic restoring member 30 is in a compressed state in a medical fluid quick coupling according to another embodiment of the present invention, the medical fluid quick coupling includes: connector base 10, slider 20, seal 60 and elastic return 30.
The connector base 10 is provided with a chamber 11 and a first through hole 12 communicated with the chamber 11. The chamber 11 is for communication to an ablation device. The slide block 20 is slidably disposed in the chamber 11, and the slide block 20 has a slide rod 21 capable of sliding back and forth in the first through hole 12. The end surface of the sliding rod 21 is formed with a first fluid hole 211 extending inward along the axial direction of the sliding rod 21, and the side wall of the sliding rod 21 is provided with a second fluid hole 212 communicating with the first fluid hole 211. The sealing ring 60 is fixedly arranged in the first through hole 12 or the chamber 11, and the sealing ring 60 is sleeved on the outer side wall of the sliding rod 21. The slide rod 21 is slidable in the axial direction of the first through hole 12 with respect to the seal ring 60. The elastic return member 30 is disposed in the chamber 11, and the elastic return member 30 is in driving connection with the slider 20. When the elastic restoring member 30 is in a normal state, the seal ring 60 is closer to the elastic restoring member 30 than the second fluid hole 212. When the elastic restoring member 30 is in the compressed state, the sealing ring 60 is further away from the elastic restoring member 30 with respect to the second fluid hole 212, and the second fluid hole 212 is in communication with the chamber 11.
The general state refers to: before the operation, the connector holder 10 is elastically returned to the state in which the connector 40 is not inserted.
When the medical fluid quick coupler is used, the connector 40 for connecting an ablation needle is inserted into the first through hole 12, the connector 40 pushes the sliding rod 21 to move into the cavity 11, the second fluid hole 212 on the sliding rod 21 is communicated with the cavity 11, and high-pressure fluid in the cavity 11 enters the ablation needle through the second fluid hole 212, the first fluid hole 211 and the connector 40. After the connector 40 is pulled out, the sliding block 20 is restored under the elastic force of the elastic restoring piece 30, the sliding rod 21 moves into the first through hole 12, the sealing ring 60 is in sealing fit with the outer side wall of the sliding rod 21, and the high-pressure fluid in the chamber 11 cannot leak outwards. Therefore, the medical fluid quick coupler can quickly realize that the ablation needle head is connected to the ablation equipment, and the working efficiency is higher.
In addition, the medical fluid quick coupler also includes a sealing material compact 70. The side wall of the chamber 11, which is close to the first through hole 12, is provided with a mounting groove 13, and the sealing ring 60 is mounted in the mounting groove 13. The sealing material pressing block 70 is fixedly installed in the chamber 11 and is abutted against the sealing ring 60, and the sealing material pressing block 70 is provided with a second through hole 71 for the sliding rod 21 to pass through. When the elastic return piece 30 is in a normal state, the sealing ring 60 and the sealing material pressing block 70 are sleeved outside the sliding rod 21, so that a good sealing effect can be achieved, and high-pressure fluid in the chamber 11 is prevented from leaking. When the elastic return piece 30 is in a compressed state, the sealing ring 60 and the sealing material pressing block 70 are sleeved outside the plug tube 41, so that a good sealing effect can be achieved, and high-pressure fluid in the chamber 11 is prevented from leaking. In addition, after the seal ring 60 is installed in the installation groove 13, the sealing material pressing block 70 is installed in the chamber 11, and the seal ring 60 is fixed in the installation groove 13 by the sealing material pressing block 70, so that the installation operation of the seal ring 60 is facilitated.
Referring to fig. 4 again, fig. 4 is a schematic view showing a state in which the elastic restoring member 30 is in a compressed state in a medical fluid quick coupling according to another embodiment of the present invention, and the medical fluid quick coupling includes a connector base 10, a sliding block 20, an elastic restoring member 30 and a joint 40.
The connector seat 10 is internally provided with a cavity 11 and a first through hole 12 communicated with the cavity 11, and the cavity 11 is used for being communicated with ablation equipment. The slide block 20 is slidably disposed in the chamber 11, and the slide block 20 has a slide rod 21 capable of sliding back and forth in the first through hole 12. The elastic return member 30 is disposed in the chamber 11, and the elastic return member 30 is in driving connection with the slider 20. One end of the connector 40 is used for connecting to an ablation needle, and the other end of the connector 40 is provided with a plugging tube 41 which can be inserted into the first through hole 12. The outer side wall of one end of the plugging tube 41 far away from the ablation needle is provided with a third fluid hole 411. When the elastic restoring member 30 is in a normal state, the sliding rod 21 is located in the first through hole 12, and the outer side wall of the sliding rod 21 is in sealing fit with the inner side wall of the first through hole 12. When the insertion tube 41 is inserted into the first through hole 12 to place the elastic restoring member 30 in a compressed state, the third fluid hole 411 communicates with the chamber 11.
When the medical fluid quick coupler is used, the connector 40 for connecting an ablation needle is inserted into the first through hole 12, the connector 40 pushes the sliding rod 21 to move into the cavity 11, the third fluid hole 411 on the plugging tube 41 is communicated with the cavity 11, and high-pressure fluid in the cavity 11 enters the ablation needle through the third fluid hole 411. After the connector 40 is pulled out, the sliding block 20 is restored under the elastic force of the elastic restoring piece 30, the sliding rod 21 moves into the first through hole 12, the outer side wall of the sliding rod 21 is in sealing fit with the inner side wall of the first through hole 12, and the high-pressure fluid in the chamber 11 cannot leak outwards. Therefore, the medical fluid quick coupler can quickly realize that the ablation needle head is connected to the ablation equipment, and the working efficiency is higher.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A medical fluid quick coupler, comprising:
the ablation device comprises a connector seat, a first connecting rod and a second connecting rod, wherein a cavity and a first through hole communicated with the cavity are arranged in the connector seat, and the cavity is used for being communicated to ablation equipment;
a sliding block slidably disposed in the chamber, the sliding block having a sliding rod capable of sliding back and forth in the first through hole, an end surface of the sliding rod extending inward along an axial direction of the sliding rod to form a first fluid hole, a side wall of the sliding rod being provided with a second fluid hole communicating with the first fluid hole;
the elastic return piece is arranged in the cavity and is in transmission connection with the sliding block;
the connector is provided with an insertion tube which can be inserted into the first through hole at one end and is used for being connected to the ablation needle head;
the sealing ring and sealing material pressing block are arranged on the side wall, close to the first through hole, of the cavity, the sealing ring is arranged in the mounting groove, the sealing material pressing block is fixedly arranged in the cavity and is in contact with the sealing ring, and the sealing material pressing block is provided with a second through hole for the sliding rod to pass through;
when the elastic return piece is in a general state, the sliding rod is positioned in the first through hole, and the side wall of the first through hole is in sealing fit with the second fluid hole; the second fluid orifice is in communication with the chamber when the elastic return is in a compressed state.
2. The medical fluid quick coupler according to claim 1, further comprising a locking member, wherein the outer side wall of the connector is provided with a fixing plate, and wherein the locking member is configured to fix the fixing plate to the connector holder.
3. The medical fluid quick coupler of claim 1 wherein the seal ring is an O-ring seal.
4. The medical fluid quick coupler of claim 1, wherein the mounting slot is a card slot.
5. The medical fluid quick coupler of claim 1 wherein the seal ring is an elastomeric seal ring.
6. The medical fluid quick coupler according to claim 5, wherein an inner diameter of the seal ring is 0.05mm to 0.25mm smaller than an outer diameter of the sliding rod or the insertion tube.
7. The medical fluid quick coupler according to any one of claims 1 to 6, wherein said elastic return is a spring, one end of said spring being connected to said slider, the other end of said spring being connected to said chamber side wall.
8. A medical fluid quick coupler, comprising: the ablation device comprises a connector seat, a first connecting rod and a second connecting rod, wherein a cavity and a first through hole communicated with the cavity are arranged in the connector seat, and the cavity is used for being communicated to ablation equipment;
a sliding block slidably disposed in the chamber, the sliding block having a sliding rod capable of sliding back and forth in the first through hole, an end surface of the sliding rod extending inward along an axial direction of the sliding rod to form a first fluid hole, a side wall of the sliding rod being provided with a second fluid hole communicating with the first fluid hole;
the sealing ring is fixedly arranged in the first through hole or the cavity, the sealing ring is sleeved on the outer side wall of the sliding rod, and the sliding rod can slide relative to the sealing ring in the axial direction of the first through hole;
the elastic return piece is arranged in the cavity and is in transmission connection with the sliding block;
the connector is provided with an insertion tube which can be inserted into the first through hole at one end and is used for being connected to the ablation needle head;
the sealing material pressing block is fixedly arranged in the cavity and is in contact with the sealing ring, and the sealing material pressing block is provided with a second through hole for the sliding rod to pass through;
when the elastic return piece is in a normal state, the sealing ring is closer to the elastic return piece relative to the second fluid hole; when the elastic return piece is in a compressed state, the sealing ring is far away from the elastic return piece relative to the second fluid hole, and the second fluid hole is communicated with the cavity.
9. The medical fluid quick coupler according to claim 8, wherein a mounting groove is provided in a side wall of the chamber adjacent to the first through hole, and the seal ring is mounted in the mounting groove.
10. A medical fluid quick coupler, comprising:
the ablation device comprises a connector seat, a first connecting rod and a second connecting rod, wherein a cavity and a first through hole communicated with the cavity are arranged in the connector seat, and the cavity is used for being communicated to ablation equipment;
a slider slidably disposed in the chamber, the slider having a slider rod capable of sliding back and forth in the first through hole;
the sealing ring is fixedly arranged in the first through hole or the cavity, the sealing ring is sleeved on the outer side wall of the sliding rod, and the sliding rod can slide relative to the sealing ring in the axial direction of the first through hole;
the elastic return piece is arranged in the cavity and is in transmission connection with the sliding block;
the connector is characterized by comprising a connector, wherein one end of the connector is used for being connected to an ablation needle, the other end of the connector is provided with an insertion tube which can be inserted into the first through hole, and the outer side wall of one end of the insertion tube, which is far away from the ablation needle, is provided with a third fluid hole;
the sealing material pressing block is fixedly arranged in the cavity and is in contact with the sealing ring, and the sealing material pressing block is provided with a second through hole for the sliding rod to pass through;
when the elastic return piece is in a normal state, the sliding rod is positioned in the first through hole, and the outer side wall of the sliding rod is in sealing fit with the inner side wall of the first through hole; when the plug tube is inserted into the first through hole to enable the elastic recovery piece to be in a compressed state, the third fluid hole is communicated with the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710414492.2A CN107202219B (en) | 2017-06-05 | 2017-06-05 | Medical fluid quick coupler |
Applications Claiming Priority (1)
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| CN201710414492.2A CN107202219B (en) | 2017-06-05 | 2017-06-05 | Medical fluid quick coupler |
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| CN107202219A CN107202219A (en) | 2017-09-26 |
| CN107202219B true CN107202219B (en) | 2023-05-16 |
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| CN111604675B (en) * | 2019-02-26 | 2022-03-15 | 株式会社岛津制作所 | Device for replacing adsorption tube |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2603890Y (en) * | 2002-11-26 | 2004-02-18 | 慕容东林 | Novel quick joint |
| CN102230529A (en) * | 2011-05-06 | 2011-11-02 | 重庆齿轮箱有限责任公司 | Yawing variable pitch gearbox and quick-change connector thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2786848B1 (en) * | 1998-12-02 | 2001-02-09 | Legris Sa | BALL COUPLER |
| JP3442683B2 (en) * | 1999-03-01 | 2003-09-02 | 日東工器株式会社 | Pipe fittings |
| CN2872046Y (en) * | 2006-02-09 | 2007-02-21 | 何桂玲 | Pipeline connector |
| CN201680095U (en) * | 2010-04-14 | 2010-12-22 | 台州市黄岩通禾塑业有限公司 | Female connector of quick connector for air conditioner |
| CN205244703U (en) * | 2015-12-29 | 2016-05-18 | 四川港通医疗设备集团股份有限公司 | Medical gas terminal |
| CN106195497A (en) * | 2016-10-08 | 2016-12-07 | 佛山市兴兴智能科技有限公司 | A kind of medical treatment controlled piecing devices of aerator |
| CN206929473U (en) * | 2017-06-05 | 2018-01-26 | 广州爱锘德医疗器械有限公司 | Medical fluid quick connector |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2603890Y (en) * | 2002-11-26 | 2004-02-18 | 慕容东林 | Novel quick joint |
| CN102230529A (en) * | 2011-05-06 | 2011-11-02 | 重庆齿轮箱有限责任公司 | Yawing variable pitch gearbox and quick-change connector thereof |
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| CN107202219A (en) | 2017-09-26 |
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