CN213850959U - Puncture needle - Google Patents
Puncture needle Download PDFInfo
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- CN213850959U CN213850959U CN202022372908.9U CN202022372908U CN213850959U CN 213850959 U CN213850959 U CN 213850959U CN 202022372908 U CN202022372908 U CN 202022372908U CN 213850959 U CN213850959 U CN 213850959U
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- needle
- puncture
- tube
- core
- base
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Abstract
The utility model discloses a puncture needle relates to medical instrument technical field, and the puncture needle includes syringe needle and nook closing member, the syringe needle includes the puncture tube, the nook closing member includes the tube core, puncture tube one end is sharp end, the one end of tube core is blunt end, the tube core is inserted in the puncture tube, sharp end with blunt end is for lieing in same one side, the length of tube core is greater than the length of puncture tube, blunt end can be followed on the puncture tube sharp end stretch out and retract and can with the relative position of puncture tube keeps stable, makes the puncture needle can adjust its most advanced "blunt" or "sharp" according to the level needs of puncture soft tissue, avoids nerve root and dura mater sac to be pricked and decreases the emergence of complication.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a puncture needle.
Background
With the popularization of an intervertebral disc removal technology by using an intervertebral foramen mirror, particularly, lumbar 5/sacral 1 intervertebral disc removal by using an intervertebral disc approach, a technology is a blind puncture technology, namely, under the condition of local anesthesia, a lumbar puncture needle is used for inserting a needle at a position which is 0.5cm away from a spinous process, and a needle head sequentially passes through skin, subcutaneous tissue, a muscular layer, a ligamentum flavum, a fat layer and a nerve root to the intervertebral disc; the technology is simple and rapid because the operation is carried out under the condition of 'blind vision', all operations are carried out under the guidance of 'chief complaints' of a patient, and the sharp needle point easily injures nerve roots or a dura mater sac, so that the treatment pain of the patient can be increased, and postoperative complications can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a puncture needle to solve the problem that above-mentioned prior art exists, make puncture needle can be according to the level needs of puncture soft tissue its most advanced "blunt" or "sharp", avoid nerve root and dura mater sac to be impaled, reduce the emergence of complication.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a puncture needle, including syringe needle and nook closing member, the syringe needle includes the puncture tube, the nook closing member includes the tube core, puncture tube one end is sharp end, the one end of tube core is blunt end, the tube core is inserted in the puncture tube, sharp end with blunt end is for lieing in same one side, the length of tube core is greater than the length of puncture tube, blunt end can be followed on the puncture tube sharp end stretch out and retract and can with the relative position of puncture tube keeps stable.
Preferably, the syringe needle still includes the syringe needle base, the nook closing member still includes the nook closing member base, the syringe needle base is the body, the syringe needle base with keep away from on the puncture pipe the one end fixed connection and the intercommunication of sharp end, the nook closing member base with keep away from on the tube core the one end fixed connection of blunt end, the lateral wall face of nook closing member base with the internal face spiro union of syringe needle base, keep away from on the syringe needle base the one end of puncture pipe is used for with action subassembly intercommunication.
Preferably, the needle base comprises a needle thread section and a needle connecting section which are communicated, two ends of the needle thread section are fixedly connected and communicated with the puncture needle and the needle connecting section respectively, the inner wall surface of the needle thread section is in threaded connection with the side wall surface of the needle core base, and the needle connecting section is used for being communicated with the action assembly.
Preferably, the stylet base comprises a stylet thread section and a stylet connecting section which are connected, two ends of the stylet thread section are fixedly connected with the tube core and the stylet connecting section respectively, a side wall surface of the stylet thread section is in threaded connection with an inner wall surface of the stylet thread section, and the stylet connecting section is used for facilitating an operator to rotate the tube core.
Preferably, the inner wall surface of the needle head connecting section is a circular table surface, and the radius of the circular table surface is gradually increased along the direction far away from the puncture tube.
Preferably, the outer side wall surface of the stylet connecting section is provided with axial scale marks along the axial direction of the stylet.
Preferably, the plane of the edge of the sharp end is a first inclined plane, the plane of the end face of the blunt end is a second inclined plane, the included angle between the first inclined plane and the axis of the puncture tube is equal to the included angle between the second inclined plane and the axis of the puncture tube, and the end face of the blunt end is in smooth transition connection with the side wall face of the tube core.
Preferably, a mark is arranged on the end face, far away from the needle, of the needle head connecting section, and circumferential scale marks are arranged on the outer side wall face of the needle core connecting section along the circumferential direction of the tube core.
Preferably, the puncture tube is made of metal, the needle head base is made of plastic, and the needle core is made of metal.
The utility model discloses for prior art gain following technological effect:
the utility model provides a puncture needle adopts the tube core to insert in the puncture tube, and blunt end can follow on the puncture tube sharp end stretch out and can with the relative position hold stable setting of puncture tube, when the puncture needle passes the structural layer that human toughness is high, with the blunt end withdrawal puncture tube of tube core, the sharp end of utilizing the puncture needle punctures, when the puncture needle will pass the human mechanism layer that has nerve root and dura mater sac, stretch out the blunt end of tube core from the puncture tube, puncture again, the blunt end of tube core can be fine avoid damaging nerve root and dura mater sac, make the puncture needle can adjust its most advanced "blunt" or "sharp" according to the level needs of puncture soft tissue, avoid nerve root and dura mater sac to be impaled, reduce the emergence of complication.
Furthermore, the needle core base is in threaded connection with the needle head base, the structure is simple, and the blunt end of the needle core can be conveniently extended out of or retracted back into the puncture tube.
Further, the syringe needle base includes syringe needle screw thread section and syringe needle linkage segment, and the syringe needle screw thread section can realize the spiro union with the nook closing member base, and the syringe needle linkage segment is used for and moves the subassembly intercommunication.
Further, the stylet base comprises a stylet thread section and a stylet connecting section, the stylet thread section can be in threaded connection with the needle thread section, and the stylet connecting section is used for facilitating rotary operation of the stylet.
Furthermore, the inner wall surface of the needle head connecting section is a circular table surface, so that the needle head connecting section is conveniently connected with the connecting end of the action assembly in a matching manner.
Furthermore, the arrangement of the axial scale marks is convenient for medical staff to judge the position of the blunt end of the tube core relative to the puncture tube.
Furthermore, the axial included angle of the first inclined plane and the second inclined plane is equal to that of the puncture tube, so that the medical staff can adjust the stylet when puncturing with the blunt end, and the first inclined plane and the second inclined plane are parallel, thereby not changing the puncture angle.
Furthermore, the arrangement of the circumferential scale lines facilitates the medical staff to adjust the first inclined plane to be parallel to the second inclined plane.
Furthermore, the puncture tube and the needle core are made of metal, so that the puncture capability is strong; the needle head base is made of plastic, so that the production cost of the puncture needle can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and 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 these drawings without creative efforts.
Fig. 1 is a schematic structural view of a puncture needle provided by the present invention;
in the figure: 1-needle head, 2-needle core, 3-puncture tube, 4-needle core, 5-sharp end, 6-blunt end, 7-needle head base, 8-needle core base, 9-needle head thread section, 10-needle head connecting section, 11-needle core thread section and 12-needle core connecting section.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a puncture needle to solve the problem that prior art exists, make puncture needle can be according to the level needs of puncture soft tissue its most advanced "blunt" or "sharp", avoid nerve root and dura mater sac to be pricked and damaged, reduce the emergence of complication.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The utility model provides a puncture needle, as shown in figure 1, in the embodiment, the puncture needle comprises a needle head 1 and a needle core 2, the needle head 1 comprises a puncture tube 3, the needle core 2 comprises a tube core 4, one end of the puncture tube 3 is a sharp end 5, one end of the tube core 4 is a blunt end 6, the tube core 4 is inserted in the puncture tube 3, the sharp end 5 and the blunt end 6 are positioned at the same side, the length of the tube core 4 is larger than that of the puncture tube 3, the blunt end 6 can extend out and retract from the sharp end 5 on the puncture tube 3 and can keep stable with the relative position of the puncture tube 3, the tube core 4 is inserted in the puncture tube 3, the blunt end 6 can extend out and retract from the sharp end 5 on the puncture tube 3 and can keep stable with the relative position of the puncture tube 3, when the puncture needle passes through a structural layer with high toughness of a human body, the blunt end 6 of the tube core 4 retracts into the puncture tube 3, puncture needle is punctured by using the sharp end 5, when the puncture needle passes through a human mechanism layer with a nerve root and a dura mater sac, the blunt end 6 of the tube core 4 is extended out of the puncture tube 3 and then punctured, the blunt end 6 of the tube core 4 can well avoid damaging the nerve root and the dura mater sac, so that the puncture needle can adjust the blunt end or sharp end according to the level requirement of puncturing soft tissues, the nerve root and the dura mater sac are prevented from being punctured, complications are reduced, after the needle head 1 punctures the position of a human body to be treated, the tube core 4 is taken out of the puncture tube 3, the needle head 1 is communicated with an action assembly, and the human body is treated.
In the utility model discloses an in another embodiment, syringe needle 1 still includes syringe needle base 7, the nook closing member 2 still includes nook closing member base 8, syringe needle base 7 is the body, keep away from the one end fixed connection and the intercommunication of sharp end 5 on syringe needle base 7 and the puncture pipe 3, keep away from the one end fixed connection of blunt end 6 on nook closing member base 8 and the tube core 4, the lateral wall face of nook closing member base 8 and the internal face spiro union of syringe needle base 7, the one end of keeping away from puncture pipe 3 on the syringe needle base 7 is used for and acts the subassembly intercommunication, the action subassembly can be the syringe, the transfer line etc., nook closing member base 8 and 7 spiro union of syringe needle base, moreover, the steam generator is simple in structure, it stretches out or retracts from puncture pipe 3 to be convenient for realize 4 blunt ends 6 of tube core.
In the utility model discloses an in another embodiment, syringe needle base 7 is including the syringe needle screw thread section 9 and the syringe needle linkage segment 10 that are linked together, the both ends of syringe needle screw thread section 9 respectively with pjncture needle and 10 fixed connection and the intercommunication of syringe needle linkage segment, the internal face of syringe needle screw thread section 9 and the lateral wall face spiro union of nook closing member base 8, syringe needle linkage segment 10 is used for and moves the subassembly intercommunication, syringe needle base 7 includes syringe needle screw thread section 9 and syringe needle linkage segment 10, syringe needle screw thread section 9 can realize the spiro union with nook closing member base 8, treat that syringe needle 1 punctures behind the position that the human body needs to be treated, take out tube core 4 from puncture tube 3, communicate syringe needle linkage segment 10 and action subassembly again, treat the human body.
In the utility model discloses an in another embodiment, nook closing member base 8 is including continuous nook closing member screw thread section 11 and nook closing member linkage segment 12, nook closing member screw thread section 11's both ends respectively with tube core 4 and nook closing member linkage segment 12 fixed connection, the internal face spiro union of the lateral wall face of nook closing member screw thread section 11 and syringe needle screw thread section 9, nook closing member linkage segment 12 is with making things convenient for rotatory tube core 4 of operating personnel, nook closing member base 8 is including nook closing member screw thread section 11 and nook closing member linkage segment 12, nook closing member screw thread section 11 can with syringe needle screw thread section 9 spiro union, pierce human in-process at the syringe needle, operating personnel rotates nook closing member linkage segment 12, carry out "blunt" and "sharp" conversion, treat that syringe needle 1 pierces the position that the human needs to be treated after, take out tube core 4 from puncture pipe 3, communicate syringe needle linkage segment 10 with the action subassembly again, treat the human.
In another embodiment of the present invention, the inner wall surface of the needle connecting section 10 is a circular table surface, the radius of the circular table surface is gradually increased along the direction of keeping away from the puncture tube 3, and the inner wall surface of the needle connecting section 10 is a circular table surface, so as to be conveniently connected with the connecting end of the actuating assembly in a matching manner.
In another embodiment of the present invention, the outer wall surface of the stylet connecting section 12 is provided with axial scale marks along the axial direction of the stylet 4, so that the medical staff can judge the position of the blunt end 6 of the stylet 4 relative to the puncture tube 3.
In another embodiment of the utility model, the plane of the border place of sharp end 5 is first inclined plane, the plane of the terminal surface place of blunt end 6 is the second inclined plane, the contained angle of the axis of first inclined plane and puncture tube 3 equals with the contained angle of the axis of puncture tube 3 with the contained angle of the axis of second inclined plane, the terminal surface of blunt end 6 and the lateral wall surface rounding off of tube core 4 are connected, first inclined plane and second inclined plane equal with the axis contained angle of puncture tube 3, medical staff can adjust the nook closing 2 when using the puncture of blunt end 6, make first inclined plane and second inclined plane parallel, thereby need not change the puncture angle.
In another embodiment of the present invention, the needle connecting section 10 is provided with a mark on the end surface away from the needle 1, and the outer wall surface of the stylet connecting section 12 is provided with a circumferential scale mark along the circumference of the stylet 4, so that the medical staff can adjust the first inclined plane to be parallel to the second inclined plane.
In another embodiment of the present invention, the puncture tube 3 is made of metal, the needle base 7 is made of plastic, the stylet 2 is made of metal, and both the puncture tube 3 and the stylet 2 are made of metal, so that the puncture capability is strong; the needle head base 7 is made of plastic, so that the production cost of the puncture needle can be reduced.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. A puncture needle, characterized in that: the method comprises the following steps: syringe needle and nook closing member, the syringe needle includes the puncture pipe, the nook closing member includes the tube core, puncture pipe one end is sharp end, the one end of tube core is blunt end, the tube core is inserted in the puncture pipe, sharp end with blunt end is for lieing in same one side, the length of tube core is greater than the length of puncture pipe, blunt end can be followed puncture on the pipe sharp end stretch out and retract and can with puncture pipe's relative position remain stable.
2. A puncture needle according to claim 1, characterized in that: the syringe needle still includes the syringe needle base, the nook closing member still includes the nook closing member base, the syringe needle base is the body, the syringe needle base with keep away from on the puncture pipe the one end fixed connection and the intercommunication of sharp end, the nook closing member base with keep away from on the tube core the one end fixed connection of blunt end, the lateral wall face of nook closing member base with the internal face spiro union of syringe needle base, keep away from on the syringe needle base the one end of puncture pipe is used for and moves the subassembly intercommunication.
3. A puncture needle according to claim 2, characterized in that: the needle base comprises a needle thread section and a needle head connecting section which are communicated, two ends of the needle thread section are fixedly connected and communicated with the puncture needle and the needle head connecting section respectively, the inner wall surface of the needle head thread section is in threaded connection with the side wall surface of the needle core base, and the needle head connecting section is used for being communicated with the action assembly.
4. A puncture needle according to claim 3, characterized in that: the needle core base comprises a needle core thread section and a needle core connecting section which are connected, two ends of the needle core thread section are fixedly connected with the tube core and the needle core connecting section respectively, the side wall surface of the needle core thread section is in threaded connection with the inner wall surface of the needle head thread section, and the needle core connecting section is used for facilitating an operator to rotate the tube core.
5. A puncture needle according to claim 3, characterized in that: the inner wall surface of the needle head connecting section is a circular table surface, and the radius of the circular table surface is gradually increased along the direction far away from the puncture tube.
6. A puncture needle according to claim 4, characterized in that: and axial scale marks are arranged on the outer side wall surface of the stylet connecting section along the axis direction of the stylet.
7. A puncture needle according to claim 1, characterized in that: the plane of the edge of the sharp end is a first inclined plane, the plane of the end face of the blunt end is a second inclined plane, the included angle between the first inclined plane and the axis of the puncture tube is equal to the included angle between the second inclined plane and the axis of the puncture tube, and the end face of the blunt end is in smooth transition connection with the side wall face of the tube core.
8. A puncture needle according to claim 4, characterized in that: the needle head connecting section is provided with a mark on the end face far away from the needle head, and the outer side wall surface of the needle core connecting section is provided with circumferential scale marks along the circumferential direction of the tube core.
9. A puncture needle according to claim 2, characterized in that: the puncture tube is made of metal, the needle head base is made of plastic, and the needle core is made of metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022372908.9U CN213850959U (en) | 2020-10-22 | 2020-10-22 | Puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022372908.9U CN213850959U (en) | 2020-10-22 | 2020-10-22 | Puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213850959U true CN213850959U (en) | 2021-08-03 |
Family
ID=77073889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022372908.9U Active CN213850959U (en) | 2020-10-22 | 2020-10-22 | Puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213850959U (en) |
-
2020
- 2020-10-22 CN CN202022372908.9U patent/CN213850959U/en active Active
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