CN115192126A - Quick-release type suction device - Google Patents
Quick-release type suction device Download PDFInfo
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- CN115192126A CN115192126A CN202210892896.3A CN202210892896A CN115192126A CN 115192126 A CN115192126 A CN 115192126A CN 202210892896 A CN202210892896 A CN 202210892896A CN 115192126 A CN115192126 A CN 115192126A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22001—Angioplasty, e.g. PCTA
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22079—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with suction of debris
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Abstract
The invention discloses a quick-release type suction device, and belongs to the technical field of thrombus removal medical instruments. The thrombus removal device comprises a suction device and a thrombus removal catheter connected with the suction device, wherein a connecting pipe is arranged at the front end of an outer sleeve of the suction device, and the thrombus removal catheter is hermetically connected with the connecting pipe through a quick-release connector; the quick-release connector is characterized in that a slot is formed in the rear end of the quick-release connector, an air hole is formed in the side wall of the slot, and when the front end of the connecting pipe is completely inserted into the quick-release connector slot in a sealing mode, the air hole is sealed by the side face of the connecting pipe. The thrombus taking catheter is connected with the aspirator through the quick-release joint, the aspirator can be quickly connected and separated with a passage of the thrombus taking catheter, and meanwhile, the high negative pressure sealing performance of the connection part is ensured; the quick detach connects and sets up the gas pocket, and in the aspirator dismantlement process, when the gas pocket that quick detach connects was crossed to the head end sealing washer, the pressure that sucks in the chamber way reduced, and blood is no longer excessive along with extracting of aspirator, prevents that patient's blood loss is too much.
Description
Technical Field
The invention relates to a quick-release type suction device, and belongs to the technical field of thrombus removal medical instruments.
Background
With the improvement of living standard of people, the incidence of thrombotic diseases is increasing day by day, thrombus can obstruct or completely interrupt blood flow, if embolism occurs in cardiovascular and cerebrovascular vessels, serious consequences can be caused, if the embolism is easy to cause disability, death can be caused seriously, life health is influenced, and how to rapidly and effectively eliminate the embolism is a problem to be solved by people in the field at present.
In the existing clinical operation process, a traditional disposable medical injector and a thrombus taking catheter are generally used for sucking foreign matters such as thrombus blocking blood vessels to the outside of the body and recovering blood circulation again.
However, the main application range and functions of the disposable syringe used in clinical practice at present are to inject liquid into the body, and no special design is made for special clinical application scenes such as thrombus aspiration, and there are many operational inconveniences when aspirating thrombus: (1) The existing injector and the existing thrombus taking catheter adopt a luer structure, the separation between instruments can be completed only by rotating for a plurality of circles, when thrombus suction is repeatedly carried out, the separation is needed for a plurality of times, the suction efficiency is low, and the operation is complicated; (2) When the syringe provides negative pressure, a doctor needs to operate the syringe with two hands, one hand holds the outer sleeve of the syringe, and the other hand pulls the core rod, so that the internal pressure cannot be automatically maintained; (3) The shape of a core rod handle of the injector is generally designed to be convenient for pushing, the core rod needs to be retracted to form negative pressure when thrombus is sucked, and a doctor is inconvenient to use when drawing; (4) When the syringe is withdrawn from the suction catheter, a piston effect is created and blood flows out with the withdrawal of the syringe, resulting in excessive bleeding of the patient.
The prior art discloses a negative pressure injector (publication number: CN 213249512U), which is characterized in that locking structures are respectively arranged on a syringe and a piston rod, so that the piston rod can be locked on the syringe through the locking structures to suck when the syringe is drawn in place, thereby facilitating the doctor to complete partial suction operation with one hand, saving labor in the operation process, more accurately controlling the suction negative pressure and achieving better treatment effect. However, after completing one aspiration, the syringe (corresponding to an aspirator) needs to separate the thrombectomy catheter from the aspirator in order to remove the thrombi in the aspirator, and then repeat aspiration. The existing connection structure between the aspirator and the thrombus taking catheter cannot be quickly plugged and pulled out, and when the aspirator is pulled out, blood is easy to overflow, even siphonage is caused, and a large amount of blood is lost.
Aiming at the clinical requirements, a quick-release type suction device is designed, which is provided with a quick-release connector, can be quickly connected and separated with a channel of a thrombus removal catheter, and prevents blood from flowing outwards by arranging an air hole; the shape of the core bar handle of the suction device is more suitable for withdrawing operation; the suction device is provided with a multi-stage limiting structure, so that the requirements of clinical negative pressure of different degrees can be met; meanwhile, the vacuum suction device is provided with a switch valve, so that continuous low negative pressure can be realized to meet the suction requirement of small blood vessels.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a quick-release type suction device, which solves the problem that the prior disposable syringe used clinically for sucking thrombus can not be quickly separated, resulting in lower efficiency of thrombus suction.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a quick-release type suction device comprises a suction device and a thrombus removal guide tube connected with the suction device, wherein a switch valve is arranged on the thrombus removal guide tube, and the suction device comprises an outer sleeve, a core rod, a limiting plug and a piston sealing ring;
the front end of an outer sleeve of the aspirator is provided with a connecting pipe, and the thrombus taking catheter is hermetically connected with the connecting pipe through a quick-release joint;
the quick release connector is characterized in that a slot is formed in the rear end of the quick release connector, an air hole is formed in the side wall of the slot, and when the front end of the connecting pipe is completely inserted into the slot of the quick release connector in a sealing mode, the air hole is sealed by the side face of the connecting pipe.
As a preferred example, the front end of the outer sleeve is hermetically connected with the thrombus removal catheter, the rear end of the outer sleeve is provided with an opening into which the core rod is inserted, and the side surface of the outer sleeve close to the rear end is provided with a limit plug inserted into the inner cavity;
the core bar is inserted into the outer sleeve from the opening at the rear end of the outer sleeve, the piston sealing ring sealed with the inner wall of the outer sleeve is arranged at the front end of the core bar, the core bar is provided with a sliding groove along the axis direction, a plurality of side holes are formed in the sliding groove, a transverse baffle is arranged at the rear end in each side hole, the limiting plug is positioned in the sliding groove, and when the limiting plug is aligned with the side holes, the core bar is rotated to enable the transverse baffle in the side hole to abut against the limiting plug.
The sliding groove with the side hole is formed in the core rod, the negative pressure locking and retaining mechanism is formed, the transverse baffle is arranged in the side hole, negative pressure is formed after the core rod is pulled, when the limiting plug is aligned with the side hole, the core rod can be rotated, the transverse baffle in the side hole is abutted against the limiting plug after being rotated, the rotating core rod cannot be pulled back by negative pressure at the moment, a doctor does not need to maintain the pulling state of the aspirator all the time, and the needle tube is labor-saving and convenient compared with the existing needle tube.
As a preferable example, the front end of the outer sleeve is provided with a connecting pipe, and the thrombus removal catheter is connected with the connecting pipe in a sealing way through a quick-release connector. The connecting pipe of aspirator can set up the internal diameter as required, needn't receive disposable syringe national standard restriction, and the connecting pipe diameter can exceed 3mm, and preferred 5mm is and above, can prevent that the connecting pipe department of narrowest department from blockking.
The quick release connector is characterized in that a head end sealing ring and a circle of raised circular truncated cone are sequentially arranged on the connecting pipe from the front end to the rear end, the front end of the quick release connector is hermetically connected with the bolt taking guide pipe, at least 2 elastic buckling claws are uniformly arranged at the rear end of the quick release connector along the circumference, the front end of the connecting pipe is completely inserted into the rear end of the quick release connector, the elastic buckling claws are clamped at the circular truncated cone, and the connecting pipe is sealed with the quick release connector through the head end sealing ring.
When the front end of the connecting pipe is completely inserted into the quick-release connector, the air hole is positioned behind the head end sealing ring.
The quick detach connects the elasticity and detains the claw by supporting part, pressure plate portion, claw head constitute, and the pressure plate portion side is connected with the quick detach connects the side through the supporting part, and the pressure plate portion rear end is equipped with the claw head of inside buckling, and when the connecting pipe front end inserted the rear end that the quick detach connects completely, the claw head joint was in round platform department.
Adopt quick detach to connect can be more convenient assemble and dismantle, make things convenient for the doctor to use.
As a preferable example, the rear end of the core bar is provided with a T-shaped clamping part, the finger position of the front end surface of the T-shaped clamping part is provided with an index finger arc groove and a middle finger arc groove for drawing, and the finger position of the rear end surface of the T-shaped clamping part is provided with a thumb arc groove for pushing.
The place of finger contact sets up the arc wall, can laminate the finger more, improves the travelling comfort.
As a preferable example, the front end of the core rod is provided with an annular groove, and a piston sealing ring is fixed in the annular groove.
The annular groove is used for fixing the piston sealing ring, and the piston sealing ring can be conveniently replaced after being damaged after being used for a long time.
The invention has the beneficial effects that:
(1) The thrombus taking catheter is connected with the aspirator through the quick-release joint, the aspirator can be quickly connected and separated with a passage of the thrombus taking catheter, and meanwhile, the high negative pressure sealing performance of the connection part is ensured;
(2) The quick-release connector is provided with an air hole, when the head end sealing ring crosses the air hole of the quick-release connector in the detaching process of the aspirator, the pressure in the suction cavity is reduced, and blood does not overflow along with the extraction of the aspirator, so that excessive blood loss of a patient is prevented;
(3) The core bar of the aspirator is provided with a plurality of side holes and transverse baffles to form a multi-gear negative pressure locking and retaining mechanism, which can meet the clinical negative pressure aspiration requirements of different degrees and different capacities and simultaneously generate stable accumulated negative pressure vacuum energy without external force maintenance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the core rod;
FIG. 3 is a schematic view of the structure of the aspirator;
FIG. 4 is a schematic structural view of a quick release joint;
FIG. 5 is a schematic view of the connection structure of the quick release joint and the aspirator.
In the figure: 1. an aspirator; 101. an outer sleeve; 102. a core bar; 103. a limiting plug; 104. a piston seal ring; 105. a chute; 106. a side hole; 107. a transverse baffle; 108. a connecting pipe; 109. a head end sealing ring; 110. a circular table; 111. a T-shaped clamping part; 1111. an arc-shaped slot for the forefinger; 1112. a middle finger arc-shaped groove; 1113. a thumb arc slot; 112. an annular groove; 2. taking out the thrombus catheter; 3. an on-off valve; 4. a quick release joint; 401. an elastic buckling claw; 4011. a support portion; 4012. a pressing plate portion; 4013. a claw head; 402. inserting slots; 403. air holes; 404. and (4) fitting the joint in an interference fit manner.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purpose and the efficacy of the invention easily understood, the invention is further described with reference to the following embodiments.
As used herein, "front end", "distal end" refers to the end near the blood vessel, and "back end", "proximal end" refers to the end near the operating physician.
Example 1
As shown in figures 1-5, the suction device comprises an aspirator 1 and a thrombectomy catheter 2 connected with the aspirator 1, wherein the aspirator 1 comprises an outer sleeve 101, a core rod 102, a limiting plug 103 and a piston sealing ring 104.
The front end of an outer sleeve 101 of the aspirator 1 is provided with a connecting pipe 108, and the thrombus taking catheter 2 is hermetically connected with the connecting pipe 108 through a quick-release joint 4;
the rear end of the quick-release connector 4 is provided with a slot 402, the side wall of the slot 402 is provided with an air hole 403, the slot 402 is thicker than the main body of the quick-release connector 4 to form a stepped inner hole, and when the front end of the connecting pipe 108 is completely inserted into the slot 402 of the quick-release connector 4 in a sealing manner (the front end of the connecting pipe 108 abuts against the step), the air hole 403 is sealed by the side surface of the connecting pipe 108.
As shown in fig. 4-5, the rear end side of the quick release joint 4 is provided with an air hole 403, and when the front end of the connection pipe 108 is completely inserted into the quick release joint 4, the air hole 403 is located behind the head end sealing ring 109.
The quick-release connector 4 of the thrombectomy catheter 2 is pulled out from the connecting tube 108 of the outer sleeve 101, when the sealing ring 109 at the head end of the connecting tube 108 crosses the air hole 403 of the quick-release connector 4, the pressure in the suction cavity is reduced, and the blood does not overflow along with the pulling-out of the aspirator 1, thereby preventing the excessive blood loss of the patient.
The front end of an outer sleeve 101 is hermetically connected with the thrombus taking catheter 2, the rear end of the outer sleeve 101 is provided with an opening into which the core rod 102 is inserted, the side surface of the outer sleeve 101 close to the rear end is provided with a limiting plug 103 inserted into the inner cavity, the limiting plug 103 is fixed on the side surface of the outer sleeve 101 in a clamping, screwing, interference fit or other modes, and the limiting plug 103 can be conveniently disassembled so as to install and disassemble the core rod 102;
the core rod 102 is inserted into the outer sleeve 101 from the rear end opening, the front end of the core rod 102 is provided with a piston sealing ring 104 sealed with the inner wall of the outer sleeve 101, the core rod 102 is provided with a chute 105 along the axial direction, the chute 105 is provided with a plurality of side holes 106, the rear end in each side hole 106 is provided with a transverse baffle 107, the limiting plug 103 is positioned in the chute 105, and when the limiting plug 103 is aligned with the side holes 106, the core rod 102 is rotated to enable the transverse baffle 107 in the side holes 106 to abut against the limiting plug 103.
Through set up the spout 105 of taking side opening 106 on core bar 102, set up horizontal baffle 107 in the side opening 106, the core bar 102 forms the negative pressure after drawing, when spacing stopper 103 aligns with side opening 106, can pass through the rotation core bar 102 for support after the rotation of the horizontal baffle 107 in the side opening 106 on spacing stopper 103, the rotatory core bar 102 can not be pulled back by the negative pressure this moment, does not need the doctor to maintain the state of drawing of aspirator 1 all the time, for current needle tubing more laborsaving and convenient.
Example 2
As shown in fig. 3-5, a connecting tube 108 is disposed at the front end of the outer casing 101, and the thrombectomy catheter 2 is connected with the connecting tube 108 by a quick release joint 4 in a sealing manner. The connecting tube 108 of the aspirator 1 can be provided with an inner diameter as required without being restricted by national standards of disposable syringes, and the diameter of the connecting tube 108 may exceed 3mm.
The connecting pipe 108 is sequentially provided with a head end sealing ring 109 and a circle of convex round platforms 110 from the front end to the rear end, the front end of the quick-release connector 4 is hermetically connected with the bolt taking guide pipe 2, the rear end of the quick-release connector 4 is uniformly provided with at least 2 elastic buckling claws 401 along the circumference, the front end of the connecting pipe 108 is completely inserted into the rear end of the quick-release connector 4, the elastic buckling claws 401 are clamped at the round platforms 110, and the connecting pipe 108 is sealed with the quick-release connector 4 through the head end sealing ring 109.
The elastic buckle 401 of the quick-release connector 4 is composed of a supporting portion 4011, a pressing plate portion 4012 and a claw head 4013, the side surface of the pressing plate portion 4012 is connected with the side surface of the quick-release connector 4 through the supporting portion 4011, the claw head 4013 bent inwards is arranged at the rear end of the pressing plate portion 4012, and when the front end of the connecting pipe 108 is completely inserted into the rear end of the quick-release connector 4, the claw head 4013 is clamped at the round table 110.
Adopt quick detach to connect 4 can be more convenient assemble and dismantle, make things convenient for the doctor to use.
Example 3
As shown in FIG. 3, the rear end of the stem 102 is provided with a T-shaped clamping portion 111, the finger position of the front end face of the T-shaped clamping portion 111 is provided with an index finger arc-shaped slot 1111 and a middle finger arc-shaped slot 1112 for pulling, and the finger position of the rear end face of the T-shaped clamping portion 111 is provided with a thumb arc-shaped slot 1113 for pushing.
The place of finger contact sets up the arc wall, can laminate the finger more, improves the travelling comfort.
Example 4
As shown in fig. 2 and 3, the front end of the core rod 102 is provided with an annular groove 112, and the piston seal ring 104 is fixed in the annular groove 112.
The annular groove 112 is used for fixing the piston sealing ring 104, and the piston sealing ring 104 can be conveniently replaced after being damaged after being used for a long time.
Example 5
The thrombus taking catheter 2 is provided with a switch valve 3.
The switch valve 3 can control the cock taking conduit 2 to be gradually switched from a complete conduction state to a complete closing state. When the small blood vessel is subjected to thrombus removal (at the moment, the small blood vessel is blocked due to large suction amount), the thrombus removal catheter 2 is switched to a state with smaller suction amount through the switch valve 3, so that continuous low negative pressure is realized, and the suction requirement of the small blood vessel is met.
The using method comprises the following steps:
when taking a bolt pipe 2 in production, it is sealed fixed with the rear end of quick detach joint 4 front end and taking a bolt pipe 2 (quick detach joint 4 front end sets up interference fit and connects 404, interference fit connects 404 and is the taper pipe that becomes thick gradually by tip to middle part, taper pipe stub end diameter is greater than quick detach joint 4 front end pipe diameter, it can reach better sealed connection effect after the cooling on interference fit connects 404 to overlap through the mode of thermal expansion to get bolt pipe 2, furthermore, for further improving the intensity of junction, can also adopt the dual connected mode cooperation of interference fit + glue solidification to use), quick detach joint 4 and the inner chamber UNICOM of taking bolt pipe 2.
(1) When the thrombectomy catheter 2 is placed into a human body blood vessel and the far end of the thrombectomy catheter 2 reaches the vicinity of thrombus, the aspirator 1 and the quick-release connector 4 are inserted to the bottom, the buckling claws of the quick-release connector 4 are confirmed to buckle the round table 110 on the connecting pipe 108 of the outer sleeve 101, fingers are clamped on the T-shaped clamping part 111 of the core rod 102, the fingers are bent to pull the core rod 102, the core rod 102 is withdrawn according to the expected negative pressure, the side hole 106 and the transverse baffle 107 at the corresponding pressure position are aligned with the limiting plug 103, the core rod 102 is rotated to lead the limiting plug 103 to be screwed into the side hole 106 and clamped at the transverse baffle 107, at the moment, a doctor loosens the core rod 102, no external force is needed, and a certain negative pressure is still maintained in the aspirator 1.
(2) The switch valve 3 is opened quickly, the negative pressure is conducted to the far end of the thrombus removal catheter 2, and the thrombus nearby is sucked out of the human body.
(3) The switch valve 3 is closed, the buckling claw of the quick-release connector 4 is pressed, the quick-release connector 4 of the thrombectomy catheter 2 is pulled out from the connecting pipe 108 of the outer sleeve 101, when the head end sealing ring 109 of the connecting pipe 108 crosses the air hole 403 of the quick-release connector 4, the pressure in the suction cavity is reduced, and blood does not overflow along with the pulling-out of the aspirator 1.
(4) The core rod 102 is rotated to return the stopper plug 103 into the sliding groove 105, and the core rod 102 is pushed to expel thrombus out of the aspirator 1.
(5) The above processes are repeated, and the clinical repeated suction process can be realized.
Before the aspirator 1 and the quick-release connector 4 are butted again, air needs to be completely exhausted from the inside of the aspirator 1, so that the air content in a suction cavity is reduced, and the risk of air entering a human body is reduced.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A quick-release type suction device comprises a suction device (1) and a thrombus removal catheter (2) connected with the suction device (1), and is characterized in that a connecting pipe (108) is arranged at the front end of an outer sleeve (101) of the suction device (1), and the thrombus removal catheter (2) is hermetically connected with the connecting pipe (108) through a quick-release joint (4);
the rear end of the quick-release connector (4) is provided with a slot (402), the side wall of the slot (402) is provided with an air hole (403), and when the front end of the connecting pipe (108) is completely inserted into the slot (402) of the quick-release connector (4) in a sealing manner, the air hole (403) is sealed by the side surface of the connecting pipe (108).
2. The quick-release type suction device as claimed in claim 1, wherein the aspirator (1) comprises an outer sleeve (101), a core rod (102), a limit plug (103), and a piston sealing ring (104);
an opening into which the core rod (102) is inserted is formed in the rear end of the outer sleeve (101), and a limiting plug (103) inserted into the inner cavity is arranged on the side surface, close to the rear end, of the outer sleeve (101);
the piston type piston rod structure is characterized in that the core rod (102) is inserted into the outer sleeve (101) from the rear end opening of the outer sleeve, a piston sealing ring (104) sealed with the inner wall of the outer sleeve (101) is arranged at the front end of the core rod (102), a sliding groove (105) in the axial direction is formed in the core rod (102), a plurality of side holes (106) are formed in the sliding groove (105), a transverse baffle (107) is arranged at the inner rear end of each side hole (106), the limiting plug (103) is located in the sliding groove (105), and when the limiting plug (103) is aligned with the side holes (106), the core rod (102) is rotated to enable the transverse baffle (107) in the side holes (106) to abut against the limiting plug (103).
3. The quick-release type suction device according to claim 1 or 2, characterized in that the connecting pipe (108) is sequentially provided with a head end sealing ring (109) and a circle of convex round table (110) from the front end to the rear end, the front end of the quick-release connector (4) is hermetically connected with the bolt taking guide pipe (2), the rear end of the quick-release connector (4) is uniformly provided with at least 2 elastic buckling claws (401) along the circumference, the front end of the connecting pipe (108) is completely inserted into the rear end of the quick-release connector (4), the elastic buckling claws (401) are clamped at the round table (110), and the connecting pipe (108) is sealed with the quick-release connector (4) through the head end sealing ring (109).
4. A quick release type suction device according to claim 3, characterized in that when the front end of the connection pipe (108) is fully inserted into the quick release joint (4), the air hole (403) is located behind the head end sealing ring (109).
5. The quick-release type suction device according to claim 3 or 4, characterized in that the elastic buckle claw (401) of the quick-release joint (4) is composed of a supporting portion (4011), a pressing plate portion (4012) and a claw head (4013), the side surface of the pressing plate portion (4012) is connected with the side surface of the quick-release joint (4) through the supporting portion (4011), the claw head (4013) bent inwards is arranged at the rear end of the pressing plate portion (4012), and when the front end of the connecting pipe (108) is completely inserted into the rear end of the quick-release joint (4), the claw head (4013) is clamped at the circular truncated cone (110).
6. The quick-release type suction device according to claim 2, characterized in that the rear end of the core rod (102) is provided with a T-shaped clamping part (111), the finger positions of the front end surface of the T-shaped clamping part (111) are provided with an index finger arc-shaped groove (1111) and a middle finger arc-shaped groove (1112) for pulling, and the finger positions of the rear end surface of the T-shaped clamping part (111) are provided with a thumb arc-shaped groove (1113) for pushing.
7. The quick-release type suction device as claimed in claim 2 or 6, wherein the front end of the core rod (102) is provided with an annular groove (112), and the piston sealing ring (104) is fixed in the annular groove (112).
8. A quick release type suction device according to claim 1 or 2, characterized in that the cock removing conduit (2) is provided with a switch valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210892896.3A CN115192126A (en) | 2022-07-27 | 2022-07-27 | Quick-release type suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210892896.3A CN115192126A (en) | 2022-07-27 | 2022-07-27 | Quick-release type suction device |
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| Publication Number | Publication Date |
|---|---|
| CN115192126A true CN115192126A (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210892896.3A Pending CN115192126A (en) | 2022-07-27 | 2022-07-27 | Quick-release type suction device |
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| CN (1) | CN115192126A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117426835A (en) * | 2023-12-20 | 2024-01-23 | 江西钶维肽生物科技有限公司 | Thrombus extraction assembly |
-
2022
- 2022-07-27 CN CN202210892896.3A patent/CN115192126A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117426835A (en) * | 2023-12-20 | 2024-01-23 | 江西钶维肽生物科技有限公司 | Thrombus extraction assembly |
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