CN113413202A - Multi-target injection device for femoral head - Google Patents
Multi-target injection device for femoral head Download PDFInfo
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- CN113413202A CN113413202A CN202110967961.XA CN202110967961A CN113413202A CN 113413202 A CN113413202 A CN 113413202A CN 202110967961 A CN202110967961 A CN 202110967961A CN 113413202 A CN113413202 A CN 113413202A
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- puncture
- sheath
- locking connector
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- tube
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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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3472—Trocars; Puncturing needles for bones, e.g. intraosseus injections
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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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3405—Needle locating or guiding means using mechanical guide means
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- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
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- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a femoral head multi-target injection device, which comprises a sheath tube assembly part, a guide needle assembly part, a multidirectional puncture guide device, a puncture needle assembly part and a medicine injection sheath tube assembly part; the sheath pipe assembly part is formed by welding a first sheath pipe and a hollow first inner cone locking joint, and an angle mark is arranged on the first inner cone locking joint. The femoral head multi-target injection device only needs minimally invasive skin incision, and has small wound to patients; only one bone tunnel is arranged in the femoral neck, so that the biological strength of the femoral neck can be protected to the maximum extent; the multidirectional puncture guiding device can guide the puncture needle to perform multidirectional puncture and can form a plurality of medicine injection passages; the femoral head is radially punctured and dosed, so that the dosing range is expanded, and the intramedullary decompression effect is realized to a certain extent; the design of the medicine injection sheath assembly can reduce the waste of valuable medicines in the injection process.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a femoral head multi-target injection device.
Background
The hip joint is one of the most important joints of the human body, consists of a femoral head and an acetabulum, has a normal structure and functions, and has important significance for the normal life and work of the human body. The femoral head necrosis can cause pain and dysfunction of hip joints, the disease condition is progressively aggravated, the life quality of patients is seriously affected, and the disability rate is high. The incidence of disease increases year by year in recent years, mainly affecting young people, and is often bilateral. At present, conservative treatments, including intramedullary decompression, injection of medicine into femoral head, and the like, are mostly adopted for treating early femoral head necrosis. Generally, the diseased region of femoral head necrosis is non-punctate necrosis and is mostly in a sheet shape, the traditional femoral head inner injection treatment is mostly applied, after a puncture needle reaches the femoral head, the tail end of the puncture needle is locally dosed, for example, Chinese patent CN108095807A discloses a femoral head puncture guide device, the dosing range of the device is small, large-dose and large-range dosing is difficult, and the curative effect is greatly influenced.
Disclosure of Invention
In view of the above technical problems in the related art, the present invention provides a multi-target injection device for femoral head, which can overcome the above disadvantages in the prior art.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
a femoral head multi-target injection device comprises a sheath tube assembly part, a guide needle assembly part, a multidirectional puncture guide device, a puncture needle assembly part and a medicine injection sheath tube assembly part;
the sheath pipe assembly part is formed by welding a first sheath pipe and a hollow first inner conical locking connector, the tail end of the first sheath pipe is a circular flat opening, the head end of the first inner conical locking connector is a concave luer lock device, the tail end of the first inner conical locking connector is welded and communicated with the front end of the first sheath pipe, a first handle is arranged on the outer side of the first inner conical locking connector and is perpendicular to the first sheath pipe, and an angle mark is arranged on the first inner conical locking connector;
the guide needle assembly comprises a puncture guide needle, one end of the puncture guide needle is connected with an outer cone locking connector, the tail end of the outer cone locking connector is provided with a convex luer lock device with an external square shape, the convex luer lock device is matched with the concave luer lock device, the middle part of the convex luer lock device is provided with a connecting column, the connecting column is connected with the puncture guide needle, the puncture guide needle is matched with an internal cavity of a first sheath tube, and the square part of the convex luer lock device is vertically welded with a second handle;
the multidirectional puncture guiding device is formed by welding a guiding tube and a hollow second inner cone locking joint, the tail end of the guiding tube is a solid core, the opening of the guiding tube is positioned on the side wall, a slope is arranged in the guiding tube, a hollow guiding tube is arranged from the front end of the guiding tube to the opening of the guiding tube, the front end of the guiding tube is welded with the tail end of the second inner cone locking joint, a mark point is arranged on the second inner cone locking joint, and the guiding tube is matched with the inner cavity of the first sheath tube;
the puncture needle assembly part consists of a puncture needle and a tail handle, and the tail end of the puncture needle and the tail handle are vertically welded into a whole; the puncture needle is adapted to the inner cavity of the multidirectional puncture guiding device;
the medicine injection sheath tube assembly part is formed by welding a second sheath tube and a hollow third inner cone locking connector, the head end of the third inner cone locking connector is provided with a concave luer lock device, the tail end of the third inner cone locking connector is welded and communicated with the front end of the second sheath tube, and the tail end of the third inner cone locking connector is provided with a convex luer lock device.
Preferably, the tips of the puncture guide needle and the puncture needle are all three-diamond-shaped.
Preferably, the puncture guide needle is made of quenched stainless steel material.
Preferably, the outer wall of the first sheath tube and the outer wall of the puncture needle assembly part are provided with black and white length marks.
Preferably, the included angle between the slope and the side wall of the guide tube is 10-15 degrees.
The invention has the beneficial effects that: according to the invention, when the femoral head necrosis disease is treated, various medicines (such as nutritional factors for promoting blood circulation to remove blood stasis and promoting bone growth and the like) are required to be injected into the femoral head, the sheath tube assembly and the guide needle assembly can be utilized to establish a puncture channel in the femoral neck, so that the femoral neck is provided with only one bone tunnel, the biological strength of the femoral neck is protected to the maximum extent, then the multidirectional puncture guide device and the puncture needle are matched, the multidirectional channel is established in the femoral head, and then the medicine injection sheath tube is used for injecting medicine, so that the large-area wound treatment of a patient is reduced, the pain is reduced, and the femoral head is radially punctured to form a pore channel under the condition that the femoral neck is provided with only one bone tunnel, the medicine injection area is enlarged, the effect of reducing the pressure in the femoral head is indirectly achieved, and the femoral head necrosis disease is treated by one action. In addition, the invention also has the characteristics of simple structure and easy operation for medical personnel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a sheath assembly according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an introducer needle assembly according to an embodiment of the invention;
fig. 3 is a schematic structural view of a multidirectional puncture guiding device according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a lancet assembly according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a drug injection sheath assembly according to an embodiment of the present invention;
in the figure: 1. sheath assembly, 11, first sheath, 12, first inner cone locking joint, 13, first handle, 2, introducer needle assembly, 21, puncture introducer needle, 22, outer cone locking joint, 23, connection post, 24, second handle, 3, multidirectional puncture guide, 31, introducer tube, 32, second inner cone locking joint, 4, puncture needle assembly, 41, puncture needle, 42, tail handle, 5, drug injection sheath assembly, 51, second sheath, 52, third inner cone locking joint.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As shown in fig. 1-5, the femoral head multi-target injection device according to the embodiment of the present invention comprises a sheath assembly 1, an introducer needle assembly 2, a multi-directional puncture guide device 3, a puncture needle assembly 4, and a drug injection sheath assembly 5;
the sheath tube assembly part 1 is formed by welding a first sheath tube 11 and a hollow first inner conical locking connector 12, the tail end of the first sheath tube 11 is a circular flat opening, the head end of the first inner conical locking connector 12 is a concave luer lock device, the tail end of the first inner conical locking connector 12 is welded and communicated with the front end of the first sheath tube 11, a first handle 13 is arranged on the outer side of the first inner conical locking connector 12, the first handle 13 is perpendicular to the first sheath tube 11, angle marks are arranged on the first inner conical locking connector 12, and every 15 degrees is one grid;
the guide needle assembly 2 comprises a puncture guide needle 21, one end of the puncture guide needle 21 is connected with an outer cone locking connector 22, the tail end of the outer cone locking connector 22 is provided with a convex luer lock device with an external square shape, the convex luer lock device is matched with the concave luer lock device, the middle part of the convex luer lock device is provided with a connecting column 23, the connecting column 23 is connected with the puncture guide needle 21, the puncture guide needle 21 is matched with the internal cavity of the first sheath tube 11, and the square part of the convex luer lock device is vertically welded with a second handle 24;
the multidirectional puncture guiding device 3 is formed by welding a guiding tube 31 and a hollow second inner cone locking joint 32, wherein the tail end of the guiding tube 31 is a solid core, the opening of the guiding tube 31 is positioned on the side wall, a slope is arranged in the guiding tube 31, a hollow catheter is arranged from the front end of the guiding tube 31 to the opening of the guiding tube 31, the front end of the guiding tube 31 is welded with the tail end of the second inner cone locking joint 32, a mark point is arranged on the second inner cone locking joint 32 and corresponds to the angle mark of a sheath tube assembly part conveniently, the position of the mark point corresponds to the opening position of the guiding tube 31, and the guiding tube 31 corresponds to the inner cavity of the first sheath tube 11;
the puncture needle assembly part 4 consists of a puncture needle 41 and a tail handle 42, the tail end of the puncture needle 41 and the tail handle 42 are vertically welded into a whole, and the puncture needle 41 is adapted to the inner cavity of the multidirectional puncture guiding device 3;
the medicine injection sheath assembly 5 is formed by welding a second sheath 51 and a hollow third inner conical locking connector 52, the head end of the third inner conical locking connector 52 is provided with a concave luer lock device, the tail end of the third inner conical locking connector 52 is welded and communicated with the front end of the second sheath 51, and the tail end of the third inner conical locking connector 52 is provided with a convex luer lock device.
In an embodiment of the present invention, the tips of the puncture guiding needle 21 and the puncture needle 41 are three diamonds, which have sufficient strength and hardness to facilitate rotating the puncture needle, and the needle body of the puncture needle 41 is provided with a length mark and the tail is provided with a tail handle to facilitate hammering the puncture needle.
In an embodiment of the present invention, the puncture guide needle 21 is made of a quenched stainless steel material, which can further improve the strength of the device.
In an embodiment of the present invention, the outer wall of the first sheath 11 and the outer wall of the puncture needle assembly 4 are provided with black and white length marks, and the distance between the length marks is 1 cm.
In one embodiment of the invention, the slope is at an angle of 10-15 degrees to the side wall of the guide tube 31, and the puncture needle passes through the slope and punctures forwards and upwards at an angle of 10-15 degrees.
In order to facilitate understanding of the above-described technical aspects of the present invention, the above-described technical aspects of the present invention will be described in detail below in terms of specific usage.
The multi-target injection device for the femoral head is mainly applied to early femoral head necrosis, and a plurality of channels can be established in the femoral head through the multi-target injection device for injection treatment of medicines. The specific using method comprises the following steps:
the first step is as follows: assembling the sheath tube assembly part shown in fig. 1 and the guide needle assembly part shown in fig. 2, wherein the luer lock is completely engaged with each other through threads, the guide needle can grow out of a first sheath tube by 2cm, handles on the two parts are on the same horizontal line, then the parts are selected to be 2-3cm below the greater trochanter of femur, the skin is punctured after a 0.5cm incision is made, the tail end of the first sheath tube is punctured to the part where the neck of the femur is connected with the head of the femur under the guidance of a C-shaped arm, and the front end of the puncturing guide needle enters the interior of the head of the femur to form a 2cm channel;
the second step is that: withdrawing the puncture guide needle, pushing the multidirectional puncture guide device shown in fig. 3 into the first sheath, wherein the tail end of the guide device is 1-1.5cm longer than the first sheath, and the marking point at the tail part of the guide device corresponds to 0 degree of the angle mark in the sheath assembly part;
the third step: pushing the puncture needle assembly shown in fig. 4 into the multidirectional puncture guiding device shown in fig. 3 (the marked point corresponds to the 0-degree position), and pushing the puncture needle to the position below the femoral head cartilage surface under the guidance of the C-shaped arm without entering into the joint capsule; retreating the puncture needle, rotating the multidirectional puncture guiding device, enabling the mark point to correspond to 15 degrees, and repeating the puncture action; then puncture at 30 degrees and 45 degrees in sequence (the puncture angle can be changed according to specific illness state), and 4-5 passages are formed in the femoral head after the puncture is finished; then the multidirectional puncture guiding device and the puncture needle assembly are pulled out, the injector is connected with the outer opening of the sheath tube assembly, and 6-8ml of medullary cavity blood is extracted.
The fourth step: the medicine is extracted by an injector, the concave luer lock device of the medicine injection sheath assembly part shown in figure 5 is butted, then the medicine is slowly injected, the medicine is pushed to the end of the hollow second sheath of the medicine injection sheath assembly part, the medicine injection sheath assembly part is pushed into the first sheath of the sheath assembly part, the medicine is slowly pushed, and the needle is pulled out after the medicine is slowly pushed.
In conclusion, by means of the technical scheme, only a minimally invasive skin incision is needed by using the femoral head multi-target injection device, so that the trauma to a patient is small; only one bone tunnel is arranged in the femoral neck, so that the biological strength of the femoral neck can be protected to the maximum extent; the multidirectional puncture guiding device can guide the puncture needle to perform multidirectional puncture and can form a plurality of medicine injection passages; the femoral head is radially punctured and dosed, so that the dosing range is expanded, and the intramedullary decompression effect is realized to a certain extent; the design of the medicine injection sheath assembly can reduce the waste of valuable medicines in the injection process.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A femoral head multi-target injection device, which is characterized by comprising a sheath tube assembly part (1), a guide needle assembly part (2), a multidirectional puncture guide device (3), a puncture needle assembly part (4) and a medicine injection sheath tube assembly part (5);
the sheath tube assembly part (1) is formed by welding a first sheath tube (11) and a hollow first inner conical locking connector (12), the tail end of the first sheath tube (11) is a circular flat opening, the head end of the first inner conical locking connector (12) is a concave luer lock device, the tail end of the first inner conical locking connector (12) is welded and communicated with the front end of the first sheath tube (11), a first handle (13) is arranged on the outer side of the first inner conical locking connector (12), the first handle (13) is perpendicular to the first sheath tube (11), and an angle mark is arranged on the first inner conical locking connector (12);
the guide needle assembly (2) comprises a puncture guide needle (21), one end of the puncture guide needle (21) is connected with an outer cone locking connector (22), the tail end of the outer cone locking connector (22) is provided with a convex luer lock device with a square outer shape, the convex luer lock device is matched with the concave luer lock device, a connecting column (23) is arranged in the middle of the convex luer lock device, the connecting column (23) is connected with the puncture guide needle (21), the puncture guide needle (21) is matched with an inner cavity of a first sheath tube (11), and the square part of the convex luer lock device is vertically welded with a second handle (24);
the multidirectional puncture guiding device (3) is formed by welding a guiding tube (31) and a hollow second inner cone locking connector (32), the tail end of the guiding tube (31) is a solid core, the opening of the guiding tube (31) is positioned on the side wall, a slope is arranged in the guiding tube (31), a hollow catheter is arranged from the front end of the guiding tube (31) to the opening of the guiding tube (31), the front end of the guiding tube (31) is welded with the tail end of the second inner cone locking connector (32), a mark point is arranged on the second inner cone locking connector (32), and the guiding tube (31) is matched with the inner cavity of the first sheath tube (11);
the puncture needle assembly part (4) consists of a puncture needle (41) and a tail handle (42), and the tail end of the puncture needle (41) and the tail handle (42) are vertically welded into a whole; the puncture needle (41) is adapted to the inner cavity of the multidirectional puncture guiding device (3);
the medicine injection sheath assembly (5) is formed by welding a second sheath (51) and a hollow third inner cone locking connector (52), the head end of the third inner cone locking connector (52) is provided with a concave luer lock device, the tail end of the third inner cone locking connector (52) is welded and communicated with the front end of the second sheath (51), and the tail end of the third inner cone locking connector (52) is provided with a convex luer lock device.
2. The multi-target injection device for femoral head according to claim 1, wherein the tips of the puncture guiding needle (21) and the puncture needle (41) are three diamonds.
3. The multi-target injection device for femoral head according to claim 1, wherein the puncture guiding needle (21) is made of quenched stainless steel material.
4. The multi-target injection device for the femoral head according to claim 1, wherein the outer wall of the first sheath (11) and the outer wall of the puncture needle assembly (4) are provided with black and white length marks.
5. The multi-target injection device for femoral head according to claim 1, wherein the angle between the slope and the side wall of the guide tube (31) is 10-15 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110967961.XA CN113413202A (en) | 2021-08-23 | 2021-08-23 | Multi-target injection device for femoral head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110967961.XA CN113413202A (en) | 2021-08-23 | 2021-08-23 | Multi-target injection device for femoral head |
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| Publication Number | Publication Date |
|---|---|
| CN113413202A true CN113413202A (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110967961.XA Pending CN113413202A (en) | 2021-08-23 | 2021-08-23 | Multi-target injection device for femoral head |
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| CN (1) | CN113413202A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2315910Y (en) * | 1997-09-26 | 1999-04-28 | 李喜东 | Puncture needle for head of femur |
| KR20090110983A (en) * | 2008-04-21 | 2009-10-26 | 김희진 | Kit for injecting bone cement |
| CN201668477U (en) * | 2009-12-30 | 2010-12-15 | 王飞 | Caput femoris core decompression device |
| CN105596059A (en) * | 2016-02-01 | 2016-05-25 | 张孔源 | Lateral guide opening puncturing needle |
| US20180085144A1 (en) * | 2016-09-29 | 2018-03-29 | Endocellutions, Inc. | Bone Marrow Access Device |
| CN108095807A (en) * | 2017-12-19 | 2018-06-01 | 王健 | A kind of femoral head puncture gate apparatus |
-
2021
- 2021-08-23 CN CN202110967961.XA patent/CN113413202A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2315910Y (en) * | 1997-09-26 | 1999-04-28 | 李喜东 | Puncture needle for head of femur |
| KR20090110983A (en) * | 2008-04-21 | 2009-10-26 | 김희진 | Kit for injecting bone cement |
| CN201668477U (en) * | 2009-12-30 | 2010-12-15 | 王飞 | Caput femoris core decompression device |
| CN105596059A (en) * | 2016-02-01 | 2016-05-25 | 张孔源 | Lateral guide opening puncturing needle |
| US20180085144A1 (en) * | 2016-09-29 | 2018-03-29 | Endocellutions, Inc. | Bone Marrow Access Device |
| CN108095807A (en) * | 2017-12-19 | 2018-06-01 | 王健 | A kind of femoral head puncture gate apparatus |
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Application publication date: 20210921 |
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