CN110251213B - Medical safety puncture needle with locking double-sleeve - Google Patents
Medical safety puncture needle with locking double-sleeve Download PDFInfo
- Publication number
- CN110251213B CN110251213B CN201910651200.6A CN201910651200A CN110251213B CN 110251213 B CN110251213 B CN 110251213B CN 201910651200 A CN201910651200 A CN 201910651200A CN 110251213 B CN110251213 B CN 110251213B
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- Prior art keywords
- needle
- safety
- safety block
- block
- elastic
- Prior art date
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- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 210000000683 abdominal cavity Anatomy 0.000 abstract description 10
- 210000003815 abdominal wall Anatomy 0.000 abstract description 8
- 210000000056 organ Anatomy 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 7
- 210000001519 tissue Anatomy 0.000 description 11
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 210000004303 peritoneum Anatomy 0.000 description 3
- 208000005646 Pneumoperitoneum Diseases 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002357 laparoscopic surgery Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000002674 endoscopic surgery Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 206010033675 panniculitis Diseases 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 210000004003 subcutaneous fat Anatomy 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3474—Insufflating needles, e.g. Veress needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3478—Endoscopic needles, e.g. for infusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3454—Details of tips
- A61B2017/3456—Details of tips blunt
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B2017/347—Locking means, e.g. for locking instrument in cannula
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a medical safety puncture needle with locking double sleeves, which comprises a locking assembly, wherein the locking assembly comprises a connecting block, a safety block and an elastic crochet, the connecting block and the safety block are sequentially arranged in a shell, the front end of the connecting block is connected with an inner needle, the rear end of the connecting block is provided with a first spring for driving the inner needle to extend out of the front end of an outer needle, one end of the elastic crochet is connected with the connecting block, the other end of the elastic crochet extends towards the safety block, the safety block is provided with a locking groove matched with the elastic crochet, the front side of the safety block is provided with a first guide surface matched with the elastic crochet, the rear side of the safety block is provided with a second guide surface for guiding the elastic crochet into the locking groove, and the safety block is provided with a driving assembly for driving the locking groove to be close to or far away from the moving track of the elastic crochet. The medical safety puncture needle with the locking double sleeves provided by the invention adopts the mutual matching of the elastic crochet needle and the safety block, and when the outer needle penetrates through the abdominal wall, the inner needle is sprung out of the outer needle and locked, so that the damage to tissues or organs in the abdominal cavity is avoided.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a medical safety puncture needle with a locking double sleeve.
Background
Surgical instruments have been used for hundreds of years, and surgical instruments have been developed for hundreds of years by using different surgical instruments to perform tissue grasping, shearing, separation, coagulation, suture closure, and the like. Endoscopic surgery has been developed clinically for over 30 years and is rapidly advancing. In brief, the laparoscopic surgery, i.e. the operation doctor adopts an elongated endoscopic handheld instrument, enters the patient body through a natural cavity channel or a constructed puncture channel, and finishes the operations of tissue grabbing, shearing, separating, coagulation, suture closing and the like.
In laparoscopic surgery, the most commonly used instruments are pneumoperitoneum needles, drainage needles and infusion double trocar. The traditional puncture needle comprises an outer needle and an inner needle, wherein the inner needle can move in the outer needle; when the puncture needle is used, a doctor holds the puncture needle by one hand and determines the position of the other hand on the abdomen of a patient, the doctor acts the puncture needle on the abdomen of the patient after determining the position, at the moment, the inner needle head of the puncture needle is firstly contacted with the skin of the patient, and the inner needle head is blunt and cannot puncture the skin of the patient to enter the abdominal cavity of the patient after contacting the skin of the patient; the physician continues to apply downward force to the patient's abdominal cavity and the patient's skin applies upward force to the inner needle causing it to retract into the outer needle. After the inner needle tip is fully retracted into the outer needle, the outer needle tip contacts the patient's skin and pierces the patient's skin and enters the patient's abdominal cavity.
Pneumoperitoneum needle penetrates each layer of tissue of abdominal wall, and each penetrated layer of tissue comprises skin, subcutaneous tissue, subcutaneous muscle layer of subcutaneous fat layer, and peritoneum. Wherein, the peritoneum is particularly compact, the toughness is stronger, the puncture needle suddenly drops due to resistance when penetrating the peritoneum, and the breakthrough sense is extremely strong; the existing puncture needle cannot be safely self-locked when penetrating through the abdominal wall, and accidents are easily caused by injuries of tissues or organs in the abdominal cavity. A puncture needle is needed in clinic, and when penetrating through the abdominal wall, the puncture tip can be self-locked, so that the damage to tissues or organs in the abdominal cavity is avoided.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: in order to overcome the defects in the prior art, the invention provides a medical safety puncture needle with a locking double sleeve.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a take locking double cannula medical safety pjncture needle, includes casing, inner needle and outer needle, outer needle front end is equipped with puncture point, outer needle rear end with the casing intercommunication, outer needle cover is located the inner needle outside, the inner needle with outer needle sliding connection, the inner needle front end is equipped with the guard, be equipped with the injection hole on the lateral wall that the inner needle is close to the guard, still include locking component, locking component includes connecting block, safety block and elastic crochet, connecting block and safety block are located in proper order from the front backward in the casing, the connecting block front end with the inner needle is connected, the connecting block rear end is equipped with and is used for the drive the inner needle stretches out the first spring of outer needle front end, elastic crochet one end with the connecting block is connected, the elastic crochet other end to the safety block direction extends, be equipped with on the safety block with elastic crochet complex locking groove, the safety block front side be equipped with elastic crochet complex first guide face, the safety block rear side be equipped with elastic crochet in the locking face or the elastic crochet complex locking groove is kept away from in the driving track.
The outer needle is used for contacting the skin of a patient and puncturing the skin of the patient under the action of the puncturing tip, the inner needle is provided with a protection part for preventing accidents caused by injuries of tissues or organs in the abdominal cavity, the protection part can be in a blunt shape such as a sphere, an arc shape and the like, and the inner needle is provided with an injection hole for injecting or extracting gas or liquid in the human body; the inner needle is connected with the connecting block, the position of the inner needle is unchanged when the position of the connecting block is fixed, and the first spring automatically ejects out of the outer needle when the front end of the inner needle loses resistance by pushing the connecting block; the elastic crochet hook moves back and forth in the shell along the axial direction when the inner needle extends out of and retracts into the outer needle; the driving component is used for exciting the safety block, the safety block is moved into the movement track of the elastic crochet, when a medical staff performs a puncturing action, the inner needle is pressed to retract into the outer needle, the elastic crochet is driven by the connecting block to be close to the safety block, the elastic crochet slides to the rear side of the safety block along the first guide surface, after the outer needle completes puncturing, the front end of the inner needle loses resistance, the elastic crochet is driven to move downwards to the outer needle outside by the pushing of the first spring, the elastic crochet is driven to move along the second guide surface when the connecting block moves, the elastic crochet slides along the second guide surface and finally slides into the locking groove, the inner needle is locked at the outer needle outside, and the damage of tissues or organs in the abdominal cavity caused by the outer needle is prevented.
Further, in order to make the safety block reciprocate in the casing, drive assembly includes button and cylindricality slide bar, the slide bar is located the safety block lower extreme, be equipped with on the inboard diapire of casing with slide bar complex spout, the button pass the casing upper end with safety block fixed connection, the cover is equipped with the drive on the button the safety block is kept away from the second spring of spout. Medical staff presses the button to move the safety block to the movement track of the elastic crochet needle, and when the outer needle pierces the abdominal wall, the inner needle automatically ejects out of the outer needle and automatically locks the position; after the medical staff releases the button, the safety block resets under the action of the second spring and is far away from the moving track of the elastic crochet needle, after the safety block resets, the elastic crochet needle is separated from the locking groove, and the inner needle can slide back and forth in the outer needle.
Further, in order to make the safety block reciprocate in the casing, drive assembly includes guide arm and screw rod, the guide arm passes along vertical direction the safety block with the casing rotates to be connected, the guide arm with safety block sliding connection, the screw rod with guide arm axis is parallel, the screw rod with safety block threaded connection, the screw rod lower extreme with the casing rotates to be connected, the screw rod upside cover is equipped with the torsional spring, the torsional spring inner with screw rod fixed connection, the torsional spring outer end with casing fixed connection. The safety block is moved to the movement track of the elastic crochet hook by rotating the screw, and when the outer needle pierces the abdominal wall, the inner needle automatically ejects out of the outer needle and automatically locks the position; after the medical staff loosens the screw rod, the medical staff resets under the action of the torsion spring, so that the safety block resets, the elastic crochet needle is separated from the locking groove, and the inner needle can slide back and forth in the outer needle.
Further, in order to when the outer needle pierces the abdominal wall, the inner needle automatically ejects out of the outer needle and automatically locks the position, the locking groove is formed in the bottom of the safety block, the inlet of the locking groove is formed in the side wall of the safety block, and a limiting part for preventing the elastic crochet needle from sliding out is arranged in the locking groove.
Further, the bottom of the connecting block is provided with a V-shaped avoiding groove matched with the elastic crochet hook. The elastic crochet hook can take place elastic deformation when sliding along first guide surface and second guide surface, in order to guarantee that the elastic crochet hook removes smoothly, the connecting block bottom sets up the V-arrangement and dodges the groove.
The beneficial effects of the invention are as follows: the medical safety puncture needle with the locking double sleeves provided by the invention adopts the mutual matching of the elastic crochet needle and the safety block, and when the outer needle penetrates through the abdominal wall, the inner needle is sprung out of the outer needle and locked, so that the damage to tissues or organs in the abdominal cavity is avoided.
Drawings
The invention is further described below with reference to the drawings and examples.
FIG. 1 is a schematic view of a preferred embodiment of the present invention;
FIG. 2 is an enlarged schematic view of A in FIG. 1;
FIG. 3 is a schematic cross-sectional view of an initial state of the invention;
FIG. 4 is a schematic cross-sectional view of the present invention in a locked state;
FIG. 5 is a schematic view of a driving assembly according to a preferred embodiment of the present invention;
FIG. 6 is a schematic view of a driving assembly according to a preferred embodiment of the present invention;
fig. 7 is a schematic structural diagram of a second preferred embodiment of the present invention.
In the figure: 1. the device comprises a shell, 2, an inner needle, 3, an outer needle, 4, an injection hole, 5, a connecting block, 6, a safety block, 6-1, a first guide surface, 6-2, a second guide surface, 7, an elastic crochet hook, 8, a first spring, 9, a locking groove, 9-1, a limiting part, 10, a button, 11, a slide bar, 12, a slide groove, 13, a second spring, 14, a V-shaped avoidance groove, 15, a support bar, 16, a guide bar, 17, a screw, 18, a torsion spring, 19 and a knob.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the invention only by way of illustration, and therefore it shows only the constitution related to the invention.
Embodiment one:
as shown in fig. 1-6, the medical safety puncture needle with locking double sleeves comprises a shell 1, an inner needle 2 and an outer needle 3, wherein the front end of the outer needle 3 is provided with a puncture tip, the rear end of the outer needle 3 is communicated with the shell 1, the outer needle 3 is sleeved outside the inner needle 2, the inner needle 2 is in sliding connection with the outer needle 3, the front end of the inner needle 2 is provided with a protection part, and two injection holes 4 are formed in the side wall, close to the protection part, of the inner needle 2.
The novel elastic hook needle comprises a shell 1, and is characterized by further comprising a locking assembly, wherein the locking assembly comprises a connecting block 5, a safety block 6 and an elastic hook needle 7, the connecting block 5 and the safety block 6 are sequentially arranged in the shell 1 from front to back, the front end of the connecting block 5 is connected with the inner needle 2, a first spring 8 used for driving the inner needle 2 to extend out of the front end of the outer needle 3 is arranged at the rear end of the connecting block 5, a supporting rod 15 matched with the first spring 8 is arranged on the connecting block 5 to prevent the first spring 8 from bending deformation, one end of the elastic hook needle 7 is connected with the connecting block 5, the other end of the elastic hook needle 7 extends towards the safety block 6, a locking groove 9 matched with the elastic hook needle 7 is formed in the safety block 6, a first guide surface 6-1 matched with the elastic hook needle 7 is arranged at the front side of the safety block 6, a second guide surface 6-2 used for guiding the elastic hook needle 7 into the locking groove 9 is arranged at the rear side of the safety block 6, and a driving assembly used for driving the locking groove 9 to be close to or far away from the elastic hook needle 7.
The driving assembly comprises a button 10 and a cylindrical sliding rod 11, the sliding rod 11 is arranged at the lower end of the safety block 6, the sliding rod 11 and the safety block 6 are integrally processed, a sliding groove 12 matched with the sliding rod 11 is formed in the bottom wall of the inner side of the shell 1, the button 10 penetrates through the upper end of the shell 1 and is in threaded connection with the safety block 6, and a second spring 13 for driving the safety block 6 to be far away from the sliding groove 12 is sleeved on the button 10.
The locking groove 9 is formed in the bottom of the safety block 6, an inlet of the locking groove 9 is formed in the side wall of the safety block 6, a limiting part 9-1 used for preventing the elastic crochet hook 7 from sliding out is arranged in the locking groove 9, and the cross section of the locking groove 9 in the horizontal direction is L-shaped. The bottom of the connecting block 5 is provided with a V-shaped avoiding groove 14 matched with the elastic crochet hook 7.
The working process comprises the following steps:
medical staff presses the button 10 to lower the position of the safety block 6, the position of the button 10 is kept unchanged, then the medical staff performs puncturing action, the inner needle 2 is pressed to retract into the outer needle 3, the connecting block 5 drives the elastic crochet needle 7 to be close to the safety block 6 under the driving of the inner needle 2, the elastic crochet needle 7 slides to the rear side of the safety block 6 along the first guide surface 6-1, after the outer needle 3 completes puncturing, the front end of the inner needle 2 loses resistance, the elastic crochet needle 7 is driven to move when the first spring 8 pushes down to the outer side of the outer needle 3, the elastic crochet needle 7 slides along the second guide surface 6-2 and slides into the locking groove 9, the elastic crochet needle 7 falls into the limiting part 9-1 of the locking groove 9, the position of the elastic crochet needle 7 is locked, the inner needle 2 is locked on the outer side of the outer needle 3, and the inner tissue or organ injury caused by the outer needle 3 is prevented;
after the medical staff releases the button 10, the safety block 6 is reset under the action of the second spring 13, the elastic crochet hook 7 is separated from the limit part 9-1 of the locking groove 9, and the inner needle 2 can slide back and forth in the outer needle 3.
Embodiment two:
as shown in fig. 7, the difference between this embodiment and the first embodiment is that the driving assembly includes a guide rod 16 and a screw rod 17, the guide rod 16 passes through the safety block 6 along the vertical direction and is rotationally connected with the housing 1, the guide rod 16 is slidably connected with the safety block 6, the screw rod 17 is parallel to the axis of the guide rod 16, the upper end of the screw rod 17 is provided with a knob 19, the screw rod 17 is in threaded connection with the safety block 6, the lower end of the screw rod 17 is rotationally connected with the housing 1, a torsion spring 18 is sleeved on the upper side of the screw rod 17, the inner end of the torsion spring 18 is in welded connection with the screw rod 17, and the outer end of the torsion spring 18 is in welded connection with the housing 1.
The working process comprises the following steps:
the medical staff twists the knob 19 to lower the position of the safety block 6, the position of the knob 19 is kept unchanged, then the medical staff performs puncturing action, the inner needle 2 is pressed to retract into the outer needle 3, the connecting block 5 drives the elastic crochet needle 7 to be close to the safety block 6 under the driving of the inner needle 2, the elastic crochet needle 7 slides to the rear side of the safety block 6 along the first guide surface 6-1, after the outer needle 3 completes puncturing, the front end of the inner needle 2 loses resistance, the elastic crochet needle 7 is driven to move when the first spring 8 pushes down to the outer needle 3, the elastic crochet needle 7 slides along the second guide surface 6-2 and slides into the locking groove 9 when the connecting block 5 moves, the elastic crochet needle 7 falls into the limiting part 9-1 of the locking groove 9, the elastic crochet needle 7 is locked in position, the inner needle 2 is locked on the outer needle 3, and the inner tissue or organ of the abdominal cavity is prevented from being damaged by the outer needle 3;
the medical staff releases the knob 19, the screw 17 is reset under the action of the torsion spring 18, so that the safety block 6 is reset, the elastic crochet needle 7 is separated from the locking groove 9, and the inner needle 2 can slide back and forth in the outer needle 3.
Directions and references (e.g., up, down, left, right, etc.) in this invention may be used only to aid in the description of features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
While the foregoing is directed to the preferred embodiment of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (3)
1. The utility model provides a take locking double cannula medical safety pjncture needle, includes casing (1), inner needle (2) and outer needle (3), outer needle (3) front end is equipped with puncture pointed end, outer needle (3) rear end with casing (1) intercommunication, outer needle (3) cover is located inner needle (2) outside, inner needle (2) with outer needle (3) sliding connection, inner needle (2) front end is equipped with guard portion, be equipped with injection hole (4) on inner needle (2) are close to the lateral wall of guard portion, its characterized in that: the locking assembly comprises a connecting block (5), a safety block (6) and an elastic crochet needle (7), wherein the connecting block (5) and the safety block (6) are sequentially arranged in the shell (1) from front to back, the front end of the connecting block (5) is connected with the inner needle (2), the rear end of the connecting block (5) is provided with a first spring (8) for driving the inner needle (2) to extend out of the front end of the outer needle (3), one end of the elastic crochet needle (7) is connected with the connecting block (5), the other end of the elastic crochet needle (7) extends towards the direction of the safety block (6), a locking groove (9) matched with the elastic crochet needle (7) is formed in the front side of the safety block (6), the rear side of the safety block (6) is provided with a second guide surface (6-2) for guiding the elastic crochet needle (7) into the locking groove (9), the safety block (6) is arranged on the rear side of the safety block (6) and is far away from the driving button (11) or the driving button (11), the novel safety device is characterized in that a sliding groove (12) matched with the sliding rod (11) is formed in the inner bottom wall of the shell (1), the button (10) penetrates through the upper end of the shell (1) and is fixedly connected with the safety block (6), a second spring (13) which drives the safety block (6) to be far away from the sliding groove (12) is sleeved on the button (10), the driving assembly comprises a guide rod (16) and a screw rod (17), the guide rod (16) penetrates through the safety block (6) along the vertical direction and is rotationally connected with the shell (1), the guide rod (16) is in sliding connection with the safety block (6), the screw rod (17) is parallel to the axis of the guide rod (16), the screw rod (17) is in threaded connection with the safety block (6), the lower end of the screw rod (17) is rotationally connected with the shell (1), a torsion spring (18) is sleeved on the upper side of the screw rod (17), the inner end of the torsion spring (18) is fixedly connected with the screw rod (17), and the outer end of the torsion spring (18) is fixedly connected with the shell (1).
2. A locking double cannula medical safety needle as defined in claim 1, wherein: the locking groove (9) is formed in the bottom of the safety block (6), an inlet of the locking groove (9) is formed in the side wall of the safety block (6), and a limiting part (9-1) used for preventing the elastic crochet hook (7) from sliding out is arranged in the locking groove (9).
3. A locking double cannula medical safety needle as defined in claim 2, wherein: the bottom of the connecting block (5) is provided with a V-shaped avoiding groove (14) matched with the elastic crochet hook (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910651200.6A CN110251213B (en) | 2019-07-18 | 2019-07-18 | Medical safety puncture needle with locking double-sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910651200.6A CN110251213B (en) | 2019-07-18 | 2019-07-18 | Medical safety puncture needle with locking double-sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110251213A CN110251213A (en) | 2019-09-20 |
| CN110251213B true CN110251213B (en) | 2023-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910651200.6A Active CN110251213B (en) | 2019-07-18 | 2019-07-18 | Medical safety puncture needle with locking double-sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110251213B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022158405A1 (en) | 2021-01-19 | 2022-07-28 | テルモ株式会社 | Puncture needle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9072823B2 (en) * | 2012-05-16 | 2015-07-07 | The Seaberg Company, Inc. | Safety needle |
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|---|---|---|---|---|
| US5226426A (en) * | 1990-12-18 | 1993-07-13 | Inbae Yoon | Safety penetrating instrument |
| US5779680A (en) * | 1991-11-27 | 1998-07-14 | Yoon; Inbae | Retractable safety needle instrument with movable safety member |
| JPH09135841A (en) * | 1995-11-14 | 1997-05-27 | Olympus Optical Co Ltd | Aeroperitoneum needle |
| US6280417B1 (en) * | 1999-02-23 | 2001-08-28 | Needberg Technologies, Inc. | Trocar |
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| CN206714802U (en) * | 2016-12-09 | 2017-12-08 | 成都五义医疗科技有限公司 | A kind of button drive-type automatic rotary rotation protection puncture needle and puncture outfit |
| KR20180088119A (en) * | 2017-01-26 | 2018-08-03 | 고형진 | One-time usable core biopsy device |
| KR20190071661A (en) * | 2017-01-26 | 2019-06-24 | 고형진 | One-time usable core biopsy device |
| CN208784865U (en) * | 2018-04-02 | 2019-04-26 | 成都五义医疗科技有限公司 | A kind of veress needle |
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| CN110251213A (en) | 2019-09-20 |
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