CN115486927A - Cryoablation needle - Google Patents
Cryoablation needle Download PDFInfo
- Publication number
- CN115486927A CN115486927A CN202210774481.6A CN202210774481A CN115486927A CN 115486927 A CN115486927 A CN 115486927A CN 202210774481 A CN202210774481 A CN 202210774481A CN 115486927 A CN115486927 A CN 115486927A
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- Prior art keywords
- connector
- needle
- plug
- cryoablation
- medium
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- 239000002184 metal Substances 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 8
- 239000007791 liquid phase Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00172—Connectors and adapters therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
- A61B2018/0231—Characteristics of handpieces or probes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
- A61B2018/0231—Characteristics of handpieces or probes
- A61B2018/0262—Characteristics of handpieces or probes using a circulating cryogenic fluid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
- A61B2018/0293—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques using an instrument interstitially inserted into the body, e.g. needle
Abstract
The invention relates to a cryoablation needle, and relates to the technical field of medical instruments. The cryoablation needle comprises a needle head and a pipeline behind the needle, wherein one end of the pipeline behind the needle is connected with the needle head through a first connector; the first connector comprises a first connector and a second connector which are fixedly connected in a detachable mode, and the needle head is arranged on the first connector; the back needle pipeline comprises a metal corrugated outer pipe, a medium conveying pipe positioned in the metal corrugated outer pipe and a host connecting end, and two ends of the metal corrugated outer pipe are respectively connected with the second connector and the host connecting end; the metal corrugated outer pipe, the second connector and the host connecting end enclose a vacuum cavity. The cryoablation needle is convenient for a user to replace the needle head, saves the preparation time before operation and improves the efficiency.
Description
The application is a divisional application with the application number of CN201711203347.6 and the invention name of 'joint, cryoablation needle and cryoablation treatment device'.
Technical Field
The invention relates to the technical field of medical instruments, in particular to a cryoablation needle.
Background
Most of devices for operation and physical examination in the pharmaceutical industry are provided with pipelines which are disposable articles, and a new pipeline needs to be replaced before each use, for example, a cryoablation treatment device comprises a cryoablation needle and a host machine for providing a low-temperature medium for the cryoablation operation, wherein the cryoablation needle comprises a needle head and a pipeline behind the needle connected with the needle head, and the pipeline behind the needle is fixedly connected with the host machine. The cryoablation needle is a disposable consumable, a new cryoablation needle needs to be replaced in each operation, and the new cryoablation needle needs to be fixedly connected and sealed with the host machine in each replacement, so that the assembly is complex, and the consumed time is long. In addition, the whole cryoablation needle needs to be replaced after each ablation operation, and the waste is serious.
Therefore, if the disposable tube replacement in the device for operation and physical examination in the pharmaceutical industry is convenient and the efficiency is improved, the problem to be solved by the technical personnel in the field is urgently needed.
Disclosure of Invention
In view of the above, the present invention provides a joint, which has a first joint and a second joint that are fixedly connected, and the two joints can be disassembled, so that a user can assemble a new pipeline by disassembling the joints, thereby saving time and improving efficiency. The invention also provides a cryoablation needle, which applies the joint, is convenient for replacing the needle head and avoids replacing the whole cryoablation needle in each operation. The invention also provides a cryoablation treatment device, wherein the host machine is connected with the cryoablation needle through the joint, so that the cryoablation needle is convenient for a user to disassemble and assemble.
In order to achieve the purpose, the invention provides the following technical scheme:
a fitting, comprising:
the first connecting head is provided with a first medium channel;
the second connector is provided with a second medium channel;
the first connector and the second connector are detachably and fixedly connected; when the first joint and the second joint are fixedly connected, the first medium channel is communicated with the second medium channel, and the first medium channel and the second medium channel are sealed at the connection position.
Preferably, in the above joint, the first joint includes:
the inner wall of the first shell is provided with a first heat insulation sleeve;
a first plug disposed within the first housing; the first media path is disposed on the first plug.
Preferably, in the above joint, the second connecting head includes:
the inner wall of the second shell is provided with a second heat insulation sleeve;
a second plug disposed within the second housing; the second media path is disposed on the second plug; the second plug is butted with the first plug, and a sealing gasket is clamped between the second plug and the first plug.
Preferably, in the above joint, the first housing is provided with a connecting pin, and the second housing is provided with a labyrinth clamping groove matched with the connecting pin; the connecting pin can slide to the tail end along the opening of the labyrinth clamping groove.
Preferably, in the above connector, at least one of the first connector and the second connector is provided with an elastic member, the elastic member is connected to the housing of the connector and the plug, and the elastic member applies a force for driving the plug to move outward of the housing.
Preferably, in the above joint, the first joint and the second joint are screwed together.
Preferably, in the above joint, an end of the first plug is provided with a receiving groove, the second plug is inserted into the receiving groove, and the gasket is located in the receiving groove.
Preferably, in the above joint, there are two first medium passages, one is for inflow and the other is for backflow; the number of the second medium channels is two, one is used for inflow, and the other is used for backflow; wherein the first medium channel for inflow and the second medium channel for inflow are communicated; the first medium channel for backflow is communicated with the second medium channel for backflow;
or, the number of the first medium channel and the second medium channel is 1 respectively.
A cryoablation needle comprises a needle head and a pipeline behind the needle, wherein one end of the pipeline behind the needle is connected with the needle head through a first connector; the first joint is any one of the joints in the above technical solutions.
A cryoablation treatment device comprises a main machine and a cryoablation needle connected with a main body through a second connector, wherein the second connector is the connector in any one of the technical schemes.
The invention provides a connector, which comprises a first connector and a second connector; the first connecting head is provided with a first medium channel; the second connector is provided with a second medium channel; the first connector and the second connector can be detachably and fixedly connected; when the first joint and the second joint are fixedly connected, the first medium channel is communicated with the second medium channel, and the joint of the first medium channel and the second medium channel is sealed.
The connector is provided with the first connector and the second connector which are fixedly connected, the two connectors can be detached, and when the connector is applied to a pipeline, a user can install the two connectors as required so as to replace a new pipeline.
The invention also provides a cryoablation needle, which applies the joint, is convenient to replace a disposable needle head and improves the efficiency.
The invention also provides a cryoablation treatment device, wherein the host machine and the cryoablation needle are connected through the joint, so that a user can conveniently disassemble and assemble the cryoablation needle from the host machine, and the efficiency can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a joint provided in an embodiment of the present invention;
FIG. 2 is an assembly view of a first housing and a first insulating sleeve provided by an embodiment of the present invention;
FIG. 3 is an assembly view of a second sleeve and corrugated metal tubing according to embodiments of the present invention;
FIG. 4 is a cross-sectional view of a joint having two first media passages and two second media passages, respectively, according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a joint having a first media path and a second media path, each of which is one, according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a cryoablation needle provided in accordance with an embodiment of the present invention;
wherein, in fig. 1-6:
a first connector 100; a connecting pin 101; a first housing 102; a first insulating sleeve 103; a first plug 104; a second connector 200; a second insulating sleeve 201; a corrugated metal tube 202; a second plug 203; a second joint 1; a metal corrugated outer tube 2; a first joint 3; a needle 4.
Detailed Description
The embodiment of the invention discloses a connector which is provided with a first connector and a second connector which are fixedly connected, wherein the two connectors can be disassembled, so that a user can assemble a new pipeline conveniently by disassembling the connectors, the time is saved, and the efficiency is improved. The embodiment of the invention also discloses a cryoablation needle, which applies the joint, so that the needle head can be conveniently replaced, and the whole cryoablation needle can be prevented from being replaced in each operation. The embodiment of the invention also discloses a cryoablation treatment device, wherein the host machine is connected with the cryoablation needle through the joint, so that the cryoablation needle is convenient for a user to disassemble and assemble.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-6, an embodiment of the invention provides a connector, which includes a first connector 100 and a second connector 200; the first connector 100 is provided with a first medium passage; the second connector 200 is provided with a second medium channel; wherein, the first connector 100 and the second connector 200 are detachably and fixedly connected; when the first connection head 100 and the second connection head 200 are fixedly connected, the first medium passage communicates with the second medium passage, and the joint of the first medium passage and the second medium passage is sealed. The gap between the first medium channel and the second medium channel can be sealed by adopting a sealing gasket or a mutually matched labyrinth structure arranged on the two connecting heads, and the sealing form is not limited in the embodiment.
The connector provided by the embodiment of the invention is provided with the first connector 100 and the second connector 200 which are fixedly connected, and the two connectors can be detached, so that a user can open and install the two connectors as required to replace a new pipeline when the connector is applied to the pipeline, the operation is convenient, the time can be saved, and the efficiency can be improved.
Specifically, the first connector 100 includes a first housing 102 and a first plug 104; the inner wall of the first shell 102 is provided with a first heat insulation sleeve 103; the first plug 104 is disposed within the first housing 102; the first media path is provided on the first plug 104. In the joint provided by the embodiment, the first heat insulation sleeve 103 is arranged in the first joint 100, so that the medium in the first channel can be prevented from exchanging heat with the outside through the first joint 100, and the temperature of the medium can be ensured to meet the requirements of subsequent operations and examinations.
Specifically, the first insulating sleeve 103 is sandwiched between the first plug 104 and the first housing 102.
The second connector 200 comprises a second housing and a second plug 203; the inner wall of the second shell is provided with a second heat insulation sleeve 201; the second plug 203 is disposed within the second housing; a second media channel is provided on the second plug 203; the second plug 203 is mated with the first plug 104 with a gasket sandwiched between the second plug 203 and the first plug 104.
In the joint provided by this embodiment, the second heat insulating sleeve 201 is disposed in the second connector 200, so that the medium in the second channel can be prevented from exchanging heat with the outside through the second connector 200, and the medium can be ensured to meet the use requirements of the subsequent operation and examination.
Specifically, the second insulating sleeve 201 is sandwiched between the second plug 203 and the second housing.
In order to realize the fixed connection of the two connectors, in the connectors, a first shell 102 is fixed with a connecting pin 101, and a second shell is provided with a labyrinth clamping groove matched with the connecting pin 101; the connecting pin 101 can slide to the end along the opening of the labyrinth groove to fixedly connect the two connectors. During assembly, the two connectors are butted, the connecting pin 101 is aligned with the opening of the labyrinth clamping groove, and then the connecting pin 101 slides to the tail end along the labyrinth clamping groove. In the joint that this embodiment provided, connecting pin 101 clamps the groove cooperation with the maze, can prevent that connecting pin 101 from breaking away from by above-mentioned maze clamps in the groove, ensures two connectors and reliably connects to easy and simple to handle, two connectors of convenient dismantlement and assembly.
Specifically, the connecting pins 101 are multiple, and the connecting pins 101 are uniformly distributed along the circumferential direction of the first housing 102; correspondingly, the labyrinth clamping grooves are the same as the connecting pins 101 in number and correspond to the connecting pins 101 one to one.
Further, at least one of the first connector 100 and the second connector 200 is provided with an elastic member, and accordingly, a plug is slidably provided in the housing; the elastic piece is connected with the shell of the connector and the plug respectively, and the elastic piece exerts the force for driving the plug to move outwards the shell. For example, the second connector 200 is provided with an elastic member, the elastic member is connected to the second plug 203 and the second housing, and the elastic member applies a force for driving the second plug 203 to move toward the outside of the second housing, so that the second plug 203 is always abutted against the first plug 104.
As can be understood by those skilled in the art, during the movement of the connecting pin 101 along the labyrinth groove, the contact degree of the two connectors changes, and at least one of the two connectors is provided with an elastic member, so that the connecting pin 101 can move along the labyrinth groove, and the first plug 104 and the second plug 203 can be reliably butted after the two connectors are fixedly connected.
Further, in order to prevent the medium from conducting heat through the elastic member and the housing, the elastic member is configured to be coupled to the plug through the heat insulating sleeve, the heat insulating sleeve is fixedly coupled to the plug, and the heat insulating sleeve is slidably disposed in the housing.
Specifically, the elastic member is a corrugated metal pipe 202, and the corrugated metal pipe 202 is welded to the second heat insulating sleeve 201 and the second housing, respectively.
Of course, in the joint provided in the above embodiment, the two joints may also be configured as a threaded connection. Specifically, can set up the internal thread and the external screw thread of mutually supporting respectively on first casing and second casing, nevertheless in order to ensure first medium passageway and second medium passageway intercommunication after two connectors assemble, above-mentioned two connectors set up to through thread bush threaded connection, if set up on first shell 102 and can wind self axis pivoted thread bush, set up the external screw thread with the interior thread fit of thread bush on the second shell, make first joint 3 and second joint 1 align during the assembly, then rotate the thread bush make two connect to support tightly each other can.
Preferably, in order to ensure that the first medium channel and the second medium channel are communicated with each other when the two plugs are butted, in the joint, an accommodating groove is formed at the end part of the first plug 104, and the second plug 203 is inserted into the accommodating groove and is abutted against the first plug 104.
In the joint provided by the embodiment, the number of the first medium channels is two, one medium channel is used for inflow, and the other medium channel is used for backflow; the number of the second medium channels is two, one is used for inflow, and the other is used for backflow; the first medium channel for inflow is communicated with the second medium channel for inflow; the first medium channel for backflow is communicated with the second medium channel for backflow; or the number of the first medium channels and the number of the second medium channels are respectively 1, and the first medium channels are communicated with the second medium channels. The number of the medium channels is not limited in this embodiment, and can be set according to the needs of surgery or physical examination.
The upper joint can be used for conveying gas-phase media, liquid-phase media or media with both gas and liquid phases; meanwhile, two connectors of the connector are respectively provided with a heat insulation sleeve, and the connector is suitable for transmitting low-temperature media such as liquid nitrogen. The sealing gasket is of a thin sheet structure, and is preferably a low temperature resistant non-metallic material sealing gasket, such as a polytetrafluoroethylene sealing gasket, a PTFE sealing gasket, or a polyimide sealing gasket.
The embodiment also provides a cryoablation needle, which comprises a needle head 4 and a pipeline behind the needle, wherein one end of the pipeline behind the needle is connected with the needle head 4 through a first connector 3; wherein, the first joint 3 is the joint provided in the above embodiment.
The cryoablation needle that this embodiment provided has used above-mentioned joint, and convenience of customers changes syringe needle 4, practices thrift preparation time before the operation, raises the efficiency. Simultaneously, this cryoablation needle is including the syringe needle 4 and the back pipeline of needle that can dismantle each other, only replace syringe needle 4 after using at every turn can, pipeline repeatedly usable after the disinfection behind the needle compares in not possessing the joint, and the cryoablation needle of pipeline formula structure as an organic whole behind syringe needle 4 and the needle, and it can save material, avoids extravagant.
Specifically, the back needle pipeline of the cryoablation needle is connected with the second connector 200 of the first connector 3, and the needle 4 is arranged on the first connector 100 of the first connector 3; the pipeline behind the needle comprises a metal corrugated outer pipe 2, a medium conveying pipe and a host connecting end; wherein; two ends of the metal corrugated outer pipe 2 are respectively connected with the second connector 200 and the host connection end, one end of the medium conveying pipe is communicated with the second medium channel, the other end of the medium conveying pipe is communicated with the medium channel of the host connection port, and the medium conveying pipe is positioned in the metal corrugated outer pipe 2; the metal corrugated outer pipe 2, the second connector 200 and the host are connected and the end three encloses into a vacuum cavity, and the vacuum cavity can prevent the medium in the medium conveying pipe from exchanging heat with the external environment, and ensures that the medium keeps at a preset temperature. The first connector 100 of the needle 4 and the body of the needle 4 also form a vacuum chamber, and the vacuum chamber is communicated with the vacuum layer of the needle point to prevent the medium in the needle from generating heat exchange with the external environment.
The working process of the cryoablation needle is specifically described below by taking the first medium channel and the second medium channel as two examples:
liquid nitrogen fluid with pressure starts from a main machine of the cryoablation treatment device, flows through a medium conveying pipe for inflow in a needle back pipeline of the cryoablation needle and an inflow core pipe assembly of the needle head 4 to reach an inner cavity of the cryoablation needle point of the needle head 4, flows back to the main machine through the medium conveying pipe for backflow in the needle back pipeline after heat exchange, is not in direct contact with a human body, is heated and gasified through a heat exchanger of the main machine to form nitrogen, and is discharged into the atmosphere.
The host connection terminal can be set as the first connector 100 or the second connector 200 of the second connector 1.
The embodiment of the invention also provides a cryoablation treatment device, which comprises a main machine and a cryoablation needle connected with the main body through a second connector 1, wherein the second connector 1 is the connector provided by the embodiment.
In particular, the cryoablation needle can be configured as the cryoablation needle provided in the above embodiments.
In the cryoablation treatment device that this embodiment provided, the cryoablation needle links to each other with the host computer through second joint 1, and the user of being convenient for can raise the efficiency with the cryoablation needle by dismouting on the host computer. Of course, the cryoablation treatment device provided in this embodiment also has other effects related to the joint and the cryoablation needle provided in the above embodiments, which are not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A cryoablation needle is characterized by comprising a needle head (4) and a pipeline behind the needle, wherein one end of the pipeline behind the needle is connected with the needle head (4) through a first connector (3);
wherein the first connector (3) comprises a first connector (100) and a second connector (200) which are fixedly connected in a detachable manner, and the needle (4) is arranged on the first connector (100);
the pipeline behind the needle comprises a metal corrugated outer pipe (2), a medium conveying pipe positioned in the metal corrugated outer pipe (2) and a host connecting end, and two ends of the metal corrugated outer pipe (2) are respectively connected with the second connector (200) and the host connecting end;
the metal corrugated outer pipe (2), the second connector (200) and the host connecting end enclose a vacuum cavity.
2. The cryoablation needle according to claim 1, wherein the first connector (100) forms a vacuum chamber with the body part of the needle (4) and the vacuum chamber communicates with the vacuum layer of the tip of the needle (4).
3. The cryoablation needle according to claim 2, wherein the host connection tip is configured as the first connector (100) or the second connector (200).
4. The cryoablation needle according to any of claims 1-3, wherein the media delivery tube comprises a media delivery tube for inflow and a media delivery tube for reflux;
the needle head (4) is provided with a flow inlet core pipe assembly and a cryoablation needle tip inner cavity, and the medium conveying pipe for inlet flow, the flow inlet core pipe assembly and the cryoablation needle tip inner cavity are communicated in fluid;
the inner cavity of the cryoablation needle tip is also communicated with the medium delivery pipe for backflow in a fluid mode;
liquid nitrogen fluid with pressure passes through the medium conveying pipe for inflow and the inflow core pipe assembly to reach the inner cavity of the cryoablation needle tip, and flows back through the reflowing medium conveying pipe after heat exchange.
5. The cryoablation needle according to any of the claims 1 to 3, wherein the first connector (100) is provided with a first medium channel; the second connector (200) is provided with a second medium channel;
wherein, when the first connector (100) and the second connector (200) are fixedly connected, the first medium channel is communicated with the second medium channel, and the first medium channel and the second medium channel are sealed at the connection part;
one end of the medium conveying pipe is communicated with the second medium channel, and the other end of the medium conveying pipe is communicated with the medium channel of the host connection port.
6. The cryoablation needle according to claim 5, wherein the first connector (100) comprises:
the heat insulation device comprises a first shell (102), wherein a first heat insulation sleeve (103) is arranged on the inner wall of the first shell (102); and
a first plug (104), the first plug (104) disposed within the first housing (102); the first media channel is disposed on the first plug (104).
7. The cryoablation needle according to claim 6, wherein the second connector (200) comprises:
the inner wall of the second shell is provided with a second heat insulation sleeve (201); and
a second plug (203), the second plug (203) disposed within the second housing; the second media channel is arranged on the second plug (203); the second plug (203) is butted with the first plug (104), and a gasket is clamped between the second plug (203) and the first plug (104).
8. The needle of claim 7, wherein the first housing (102) is provided with a connecting pin (101), and the second housing is provided with a labyrinth groove for engaging with the connecting pin (101); the connecting pin (101) can slide to the tail end along the opening of the labyrinth clamping groove.
9. The needle of claim 8, wherein the second connector (200) is provided with a resilient member, which is connected to the second plug (203) and the second housing, respectively, and which applies a force that drives the second plug (203) to move out of the second housing, so that the second plug (203) always abuts against the first plug (104); or
The first connector (100) is provided with elastic members which are connected to the first housing (102) and the first plug (104), respectively, and which apply a force that drives the first plug (104) to move outward of the first housing (102).
10. The needle of claim 7, wherein the end of the first plug (104) is provided with a recess into which the second plug (203) is inserted and the seal is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210774481.6A CN115486927A (en) | 2017-11-27 | 2017-11-27 | Cryoablation needle |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711203347.6A CN107822705B (en) | 2017-11-27 | 2017-11-27 | Joint, cryoablation needle and cryoablation treatment device |
| CN202210774481.6A CN115486927A (en) | 2017-11-27 | 2017-11-27 | Cryoablation needle |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711203347.6A Division CN107822705B (en) | 2017-11-27 | 2017-11-27 | Joint, cryoablation needle and cryoablation treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN115486927A true CN115486927A (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210774481.6A Pending CN115486927A (en) | 2017-11-27 | 2017-11-27 | Cryoablation needle |
| CN201711203347.6A Active CN107822705B (en) | 2017-11-27 | 2017-11-27 | Joint, cryoablation needle and cryoablation treatment device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711203347.6A Active CN107822705B (en) | 2017-11-27 | 2017-11-27 | Joint, cryoablation needle and cryoablation treatment device |
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|---|---|---|---|---|
| CN109730763A (en) * | 2019-02-28 | 2019-05-10 | 上海导向医疗系统有限公司 | Split flexible cryoablation needle device |
| CN115337093A (en) * | 2022-09-06 | 2022-11-15 | 上海美杰医疗科技有限公司 | Ablation system |
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|---|---|---|---|---|
| US7850682B2 (en) * | 2005-01-10 | 2010-12-14 | Galil Medical Ltd. | Systems for MRI-guided cryosurgery |
| DE102006003571B4 (en) * | 2006-01-25 | 2011-02-10 | Erbe Elektromedizin Gmbh | Cryosurgical device with a probe coupling formed from the base and plug of cryoprobes |
| EP1973461A2 (en) * | 2005-12-16 | 2008-10-01 | Galil Medical Ltd | Apparatus and method for thermal ablation of uterine fibroids |
| CN208693431U (en) * | 2017-11-27 | 2019-04-05 | 海杰亚（北京）医疗器械有限公司 | Connector, cryoablation needle and cryoablation treatment device |
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2017
- 2017-11-27 CN CN202210774481.6A patent/CN115486927A/en active Pending
- 2017-11-27 CN CN201711203347.6A patent/CN107822705B/en active Active
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| CN107822705A (en) | 2018-03-23 |
| CN107822705B (en) | 2024-04-19 |
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