CN219846719U - Puncture protection needle - Google Patents
Puncture protection needle Download PDFInfo
- Publication number
- CN219846719U CN219846719U CN202320967506.4U CN202320967506U CN219846719U CN 219846719 U CN219846719 U CN 219846719U CN 202320967506 U CN202320967506 U CN 202320967506U CN 219846719 U CN219846719 U CN 219846719U
- Authority
- CN
- China
- Prior art keywords
- needle
- puncture
- blunt
- puncture needle
- trocar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 210000003195 fascia Anatomy 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 239000003814 drug Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 239000002872 contrast media Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000008223 sterile water Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 210000003815 abdominal wall Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002357 laparoscopic surgery Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
Abstract
The utility model belongs to the field of medical equipment, and relates to a puncture protection needle, which consists of a trocar, a puncture needle and a blunt needle, wherein the puncture needle is sleeved in the trocar, the blunt needle is sleeved in the puncture needle, the trocar and the puncture needle are of a cavity structure, the trocar, the puncture needle and the blunt needle are connected with each other through threads, the positions of the puncture needle and the blunt needle can be adjusted through rotation, so that the puncture protection needle can be more conveniently adjusted, the blunt needle is retracted in the puncture needle tube when the puncture is performed, the front end of the puncture needle is used for completing the puncture, the blunt needle is exposed out of the front end of the puncture needle through rotating threads after the puncture breaks through fascia layers, the tissue can be protected from being damaged by the puncture, the whole blunt needle can be withdrawn through the threads after reaching a designated position, and the puncture needle can be used as an injection needle; compared with the existing puncture needle structure, the structure is more reasonable and safer, is convenient to operate, and reduces the working pressure of operators.
Description
Technical Field
The utility model belongs to the field of medical instruments, and particularly relates to a puncture protection needle.
Background
Laparoscopic surgery and thoracoscopic surgery are one of the main treatment means of minimally invasive surgery, and have been widely used because of small trauma and rapid recovery, and the above-mentioned surgery needs to be performed on the abdominal wall, the fascia layers are difficult to puncture, the surgical operation must be performed by puncturing with a sharp needle tip, when the fascia layers are penetrated, the needle tip can continuously penetrate inward for a certain distance easily because of inertia, or when the surgery is required, the needle tip continuously penetrates into the human body, and at this time, the sharp needle tip can easily cause puncture damage to the internal organs of the human body, and extremely high operation level of medical staff is required to avoid the situation.
In the prior art, a puncture needle in a sleeve form is also adopted, such as CN201022736Y, and different puncture purposes can be realized by replacing different needle cores in the sleeve needle for minimally invasive surgery, but the puncture needle in the form is difficult to control the distance of needle insertion, is still difficult to avoid hurting organs, and also needs the experience of medical staff to complete puncture, and the whole needle core needs to be pulled out for secondary operation when the needle core is replaced, so that the operation difficulty and the occurrence of infection are actually increased, and the requirement of the existing medical work is difficult to be met. There is a strong need for a safer lancet.
Disclosure of Invention
Aiming at a plurality of defects existing in the prior art, the utility model provides a puncture protection needle which consists of a trocar, a puncture needle and a blunt needle, wherein the puncture needle is sleeved in the trocar, the blunt needle is sleeved in the puncture needle, the trocar and the puncture needle are of a cavity structure, the trocar, the puncture needle and the blunt needle are mutually connected through threads, the positions of the puncture needle and the blunt needle can be adjusted through rotation, so that the puncture protection needle can be more conveniently adjusted, the blunt needle is retracted in the puncture needle tube when the puncture is performed, the front end of the puncture needle is used for completing the puncture, the blunt needle is exposed out of the front end of the puncture needle through rotating threads after the puncture breaks through fascia layers, the tissue can be protected from being damaged by the puncture, the whole blunt needle can be withdrawn through the threads after reaching a designated position, and the puncture needle can be used as an injection needle; compared with the existing puncture needle structure, the structure is more reasonable and safer, is convenient to operate, and reduces the working pressure of operators.
The specific technical scheme of the utility model is as follows:
a puncture protection needle consists of a trocar, a puncture needle and a blunt needle, wherein the puncture needle is sleeved in the trocar, the blunt needle is sleeved in the puncture needle, and the trocar and the puncture needle are of a cavity structure.
More specifically, the trocar comprises a tube sleeve and a grab handle arranged at the rear end of the tube sleeve, the rear end of the grab handle is provided with a puncture needle inlet, the puncture needle inlet and the tube sleeve are integrated, and the outer side of the puncture needle inlet is provided with first external threads.
The puncture needle consists of a puncture needle body and a pinching handle arranged at the rear side of the puncture needle body, wherein the rear end of the needle body is provided with a blunt needle inlet, the blunt needle inlet and the pinching handle are integrated into a whole, the inner side of the pinching handle is provided with a first internal thread matched with the first external thread, and the top end of the outer side of the pinching handle is provided with a second external thread.
The blunt needle consists of a blunt needle body and a needle tail arranged at the rear end of the blunt needle body, and a second internal thread matched with the second external thread is arranged on the inner side of the needle tail.
The length of the puncture needle body is larger than that of the pipe sleeve, and the length of the blunt needle body is larger than that of the puncture needle body, so that the blunt needle top can be ensured to be exposed from the puncture needle top only.
After adopting above-mentioned structure, before using, firstly insert the pjncture needle body in the pipe box through pjncture needle entry, later connect trocar and pjncture needle as an organic wholely through first external screw thread and first internal screw thread, later insert the pjncture needle body in the pjncture needle body through the pjncture needle entry with blunt tip needle again to connect pjncture needle and blunt tip needle as an organic wholely through second external screw thread and second internal screw thread, the puncture protection needle combination finishes this moment. When the puncture needle is used, the puncture needle tip extends out of the pipe sleeve for a certain distance through the rotary pinching handle, meanwhile, the blunt needle tip is ensured to be kept in the puncture needle body, at the moment, puncture operation can be carried out, the second internal thread is rotated through the rotary blunt needle tail after puncture is successful, so that the blunt needle tip is exposed out of the puncture needle tip part, the puncture needle is pushed to move to a designated position, the whole puncture needle can be lowered to the designated position on the premise of not damaging organs because the blunt needle tip does not have hurt, the puncture needle is fixed on a patient body through external fixation after reaching the designated position, at the moment, the blunt needle can be retracted into the puncture needle body through the rotary second internal thread, the blunt needle can be directly taken out of the puncture needle body through further rotation of the second internal thread, and at the moment, the puncture needle body cavity can be used for injecting sterile water, medicines or contrast agents and the like to the designated position for medical operation such as flushing and medicine taking. Compared with the prior art, the structure design is more reasonable, the purpose of harmless puncture can be achieved by rotating the corresponding structure in the whole process, and due to the fact that the threaded connection is adopted, the connection is more stable, the problems of falling and the like in the puncture process are avoided, and the use safety is improved.
Besides the internal and external threaded connection, the taper fit connection or clamping connection with the same threaded connection effect can be adopted by the person skilled in the art, and the inventor does not need to describe the taper fit connection or clamping connection.
The needle head part of the puncture needle can be in the shape of an inclined plane, a triangular needle and the like, so that puncture is facilitated, and meanwhile, the puncture of the blunt needle is facilitated.
The grab handle, the pinching handle and the blunt needle tail are subjected to anti-skid treatment, so that the operation of medical staff is facilitated; the whole puncture protection needle can be made of metal materials, and can also be made of metal materials only partially, so that the inventor does not need to describe any more, but any material is sterile.
Compared with the prior art, the puncture protection needle structure adopted by the utility model is more reasonable and safer than the existing puncture needle, is convenient to operate, and reduces the working pressure of operators.
Drawings
FIG. 1 is a schematic view of the structure of the puncture protection needle during puncture;
FIG. 2 is a schematic view of the structure of the puncture protection needle with the blunt needle exposed;
FIG. 3 is a schematic view of the structure of a trocar;
FIG. 4 is a schematic view of the structure of the puncture needle;
FIG. 5 is a schematic view of the structure of a blunt tip needle;
FIG. 6 is an enlarged view of the structure at the needle of FIG. 1;
FIG. 7 is an enlarged view of the structure at the needle of FIG. 2;
in the figure, 1 is a trocar, 1-1 is a sleeve, 1-2 is a grab handle, 1-3 is a puncture needle inlet, 1-4 is a first external thread, 2 is a puncture needle, 2-1 is a puncture needle body, 2-2 is a pinching handle, 2-3 is a second external thread, 2-4 is a first internal thread, 2-5 is a blunt needle inlet, 3 is a blunt needle, 3-1 is a blunt needle body, 3-2 is a second internal thread, and 3-3 is a needle tail.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, and all other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of the present utility model.
As shown in fig. 1-7, a puncture protection needle is composed of a trocar 1, a puncture needle 2 and a blunt needle 3, wherein the puncture needle 2 is sleeved in the trocar 1, the blunt needle 3 is sleeved in the puncture needle 2, and the trocar 1 and the puncture needle 2 are of a cavity structure.
More specifically, the trocar 1 consists of a tube sleeve 1-1 and a grab handle 1-2 arranged at the rear end of the tube sleeve 1-1, wherein the rear end of the grab handle 1-2 is provided with a puncture needle inlet 1-3 which is integrated with the tube sleeve, and a first external thread 1-4 is arranged outside the puncture needle inlet 1-3.
The puncture needle 2 consists of a puncture needle body 2-1 and a pinching handle 2-2 arranged at the rear side of the puncture needle body, wherein a blunt needle inlet 2-5 is arranged at the rear end of the puncture needle body 2-1 and is integrated with the pinching handle 2-2 through the blunt needle inlet 2-5, a first internal thread 2-4 matched with the first external thread 1-4 is arranged at the inner side of the pinching handle 2-2, and a second external thread 2-3 is arranged at the top end of the outer side of the pinching handle 2-2.
The blunt needle 3 consists of a blunt needle body 3-1 and a needle tail 3-3 arranged at the rear end of the blunt needle body, and a second internal thread 3-2 matched with the second external thread 2-3 is arranged at the inner side of the needle tail 3-3.
The length of the puncture needle body is longer than the length of the pipe sleeve, and the length of the blunt tip needle body is longer than the length of the puncture needle body.
After adopting above-mentioned structure, before using, firstly insert the pjncture needle body in the pipe box through pjncture needle entry, later connect trocar and pjncture needle as an organic wholely through first external screw thread and first internal screw thread, later insert the pjncture needle body in the pjncture needle body through the pjncture needle entry with blunt tip needle again to connect pjncture needle and blunt tip needle as an organic wholely through second external screw thread and second internal screw thread, the puncture protection needle combination finishes this moment. When the puncture needle is used, the puncture needle tip extends out of the pipe sleeve for a certain distance through the rotary pinching handle, meanwhile, the blunt needle tip is ensured to be kept in the puncture needle body, at the moment, puncture operation can be carried out, the second internal thread is rotated through the rotary blunt needle tail after puncture is successful, so that the blunt needle tip is exposed out of the puncture needle tip part, the puncture needle is pushed to move to a designated position, the whole puncture needle can be lowered to the designated position on the premise of not damaging organs because the blunt needle tip does not have hurt, the puncture needle is fixed on a patient body through external fixation after reaching the designated position, at the moment, the blunt needle can be retracted into the puncture needle body through the rotary second internal thread, the blunt needle can be directly taken out of the puncture needle body through further rotation of the second internal thread, and at the moment, the puncture needle body cavity can be used for injecting sterile water, medicines or contrast agents and the like to the designated position for medical operation such as flushing and medicine taking.
The needle head part of the puncture needle can be in the shape of an inclined plane, a triangular needle and the like, so that puncture is facilitated, and meanwhile, the puncture of the blunt needle is facilitated.
The grab handle, the pinching handle and the blunt needle tail are subjected to anti-skid treatment, so that the operation of medical staff is facilitated; the whole puncture protection needle can be prepared from sterile metal materials.
Compared with the prior art, the structure design is more reasonable, the purpose of harmless puncture can be achieved by rotating the corresponding structure in the whole process, and due to the fact that the threaded connection is adopted, the connection is more stable, the problems of falling and the like in the puncture process are avoided, and the use safety is improved.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (4)
1. A puncture protection needle, characterized in that: consists of a trocar (1), a puncture needle (2) and a blunt needle (3), wherein the puncture needle (2) is sleeved in the trocar (1), and the blunt needle (3) is sleeved in the puncture needle (2);
the trocar (1) consists of a tube sleeve (1-1) and a grab handle (1-2) arranged at the rear end of the tube sleeve (1-1), a puncture needle inlet (1-3) is arranged at the rear end of the grab handle (1-2), the puncture needle inlet and the tube sleeve are integrated, and a first external thread (1-4) is arranged at the outer side of the puncture needle inlet (1-3);
the puncture needle (2) consists of a puncture needle body (2-1) and a pinching handle (2-2) arranged at the rear side of the puncture needle body, wherein a blunt needle inlet (2-5) is arranged at the rear end of the puncture needle body (2-1), the puncture needle and the pinching handle (2-2) are integrated through the blunt needle inlet (2-5), a first internal thread (2-4) matched with the first external thread (1-4) is arranged at the inner side of the pinching handle (2-2), and a second external thread (2-3) is arranged at the top end of the outer side of the pinching handle (2-2);
the blunt needle (3) consists of a blunt needle body (3-1) and a needle tail (3-3) arranged at the rear end of the blunt needle body, and a second internal thread (3-2) matched with the second external thread (2-3) is arranged on the inner side of the needle tail (3-3).
2. The puncture protection needle of claim 1, wherein: the lancet needle body is inserted into the catheter hub through the lancet inlet, the trocar and the lancet are connected into a whole through the first external thread and the first internal thread, and the blunt needle body is inserted into the lancet needle body through the blunt needle inlet, and the lancet and the blunt needle are connected into a whole through the second external thread and the second internal thread.
3. The puncture protection needle of claim 1, wherein: the length of the puncture needle body is longer than the length of the pipe sleeve, and the length of the blunt tip needle body is longer than the length of the puncture needle body.
4. The puncture protection needle of claim 1, wherein: the needle head part of the puncture needle is in an inclined plane shape or a triangular needle shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320967506.4U CN219846719U (en) | 2023-04-23 | 2023-04-23 | Puncture protection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320967506.4U CN219846719U (en) | 2023-04-23 | 2023-04-23 | Puncture protection needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219846719U true CN219846719U (en) | 2023-10-20 |
Family
ID=88371694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320967506.4U Active CN219846719U (en) | 2023-04-23 | 2023-04-23 | Puncture protection needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219846719U (en) |
-
2023
- 2023-04-23 CN CN202320967506.4U patent/CN219846719U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104274868B (en) | A kind of drainage kit | |
| US8377005B2 (en) | Neural injection system and related methods | |
| US7857788B2 (en) | Neural injection system and related methods | |
| EP2777729B1 (en) | Neural injection system | |
| CN219846719U (en) | Puncture protection needle | |
| CN109938811A (en) | A kind of minimally invasive visual expansion attraction sheath | |
| CN103190944B (en) | Disposable pericardium chest puncture needle | |
| CN115737085A (en) | Device for establishing amniotic cavity channel through mother body and use method thereof | |
| US8449503B2 (en) | Neural injection system and related methods | |
| CN205795743U (en) | Pulling device assisted by a kind of peritoneoscope | |
| CN201675994U (en) | Guide puncture needle for placing drainage pipe in abdominal operation | |
| CN204520896U (en) | Disposable lock silk fixing type pleuroperitoneal puncture needle | |
| CN214128723U (en) | Tunnel needle auxiliary device for peritoneal dialysis operation | |
| RU182275U1 (en) | Device for fixation of a trocar with laparoscopic access | |
| CN209864759U (en) | Universal type percutaneous puncture negative pressure drainage flushing device for neck abscess | |
| CN106333718A (en) | Puncture-free cannula minimally invasive laparoscope drawing and knotting device and use method thereof | |
| CN215503301U (en) | Puncture coaxial biopsy needle | |
| CN206063189U (en) | A kind of minimally invasive fascia closer | |
| CN206026375U (en) | Medical ware that suspends in midair | |
| CN203388902U (en) | Special-purpose wire needle for minimally invasive surgery of laparoscopic pediatric hernia | |
| CN219126593U (en) | Subcutaneous tunnel construction device for ventricular and abdominal cavity shunt operation | |
| US9480800B2 (en) | Neural injection system and related methods | |
| CN205514734U (en) | Child's hernia pneumoperitoneum laparoscopic surgery's equipment | |
| CN213821542U (en) | Micro-wound retractor for laparoscope thoracoscope | |
| CN215424862U (en) | Laparoscope incision suture needle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |