CN219184038U - Fixer for intraosseous transfusion - Google Patents

Abstract

The application relates to the field of medical equipment, and discloses a fixator for intraosseous infusion, which includes a sealing cover arranged on the trocar joint, a thread groove is opened in the sealing cover, and the mounting end on the trocar joint is detachable. In the threaded groove of the sealing cover, an infusion hole communicating with the threaded groove is opened on the sealing cover, and a ring-shaped fixing sticker is arranged at the bottom of the sealing cover, and the ring-shaped fixing sticker is attached to the patient's skin. The application has the ability to seal and fix the trocar by using the sealing cover and the integrally arranged ring-shaped fixing sticker, so that the joint of the trocar is in a completely sealed state, thereby improving the sealing and fixing effect of the fixer, and reducing the patient's puncture points In the event of an infection, reduce the risk of catheter-related bloodstream infection.

Description

A fixer for intraosseous infusion

technical field

The present application relates to the field of medical devices, in particular to a fixer for intraosseous transfusion.

Background technique

Intraosseous infusion is to use the rich vascular network in the bone marrow cavity to inject drugs and fluids into the blood circulation. It has wide indications, simple operation, quick safety, high success rate, and wins precious time for rescue work.

Referring to Fig. 1, at present, there are mainly two kinds of trocars used for intraosseous infusion, the first one is the first trocar 10 driven manually or electrically, and the part of the first trocar 10 left outside the patient's body is a plastic joint , the diameter of the plastic joint is relatively large, and the plastic joint is cylindrical; the second type is the second trocar needle 11 driven by electricity, and the second trocar needle 11 can be injected into the patient's bone by using a bone injection gun. The part of the needle 11 left outside the patient's body is an alloy joint, the diameter of the alloy joint is small, and the alloy joint is in the shape of a cuboid. Both the ends of the alloy joint and the plastic joint form installation ends for connecting with infusion tubes.

After the trocar is injected into the patient's bone, a fixing patch with a hole is attached to the circumference of the trocar, the trocar is located in the hole, and the fixing patch is used to fix the trocar. After the trocar is fixed, the infusion tube can be connected to the installation end of the trocar, so as to perform intraosseous infusion to the patient.

Because the fixation patch needs to pass the joint of the intraosseous infusion trocar through the hole, the fixation patch is not a complete airtight film, and the hole of the fixation patch has no physical connection with the trocar. Therefore, the joint of the trocar and the fixation It is easy to slip between the stickers and the sealing of the fixed stickers is poor, which leads to infection around the puncture point and the outside world.

Utility model content

In order to improve the poor sealing and fixation effect of the fixation patch on the trocar, the present application provides a fixator for intraosseous transfusion.

A fixer for intraosseous transfusion provided by the application adopts the following technical scheme:

A fixer for intraosseous transfusion, comprising a sealing cover arranged on a trocar connector, a thread groove is opened in the sealing cover, and a mounting end on the trocar connector is detachably arranged on the thread of the sealing cover In the groove, an infusion hole connected to the threaded groove is opened on the sealing cover, and an annular fixing sticker is integrally provided on the bottom of the sealing cover, and the ring fixing sticker is attached to the patient's skin.

By adopting the above technical scheme, after the trocar is injected into the bone of the patient, the sealing cover is first set on the joint of the trocar, and the sealing cover is rotated so that the mounting end of the joint is sealed and installed in the sealing groove of the sealing cover, and then the The ring-shaped fixation patch is fixed on the patient's skin. When infusion is required, the infusion tube is connected to the opening of the infusion hole. The liquid medicine flows into the installation end of the trocar through the infusion hole, and then flows into the patient's bone through the trocar. In this way, the sealing cover and the ring-shaped fixing sticker are used to seal and fix the trocar, so that the joint of the trocar is completely sealed, thereby improving the sealing effect of the fixer and reducing the infection of the patient's puncture point. The ring-shaped fixing sticker reduces the sliding degree between the film and the trocar, and improves the stability of the fixation.

Preferably, the infusion hole is opened along the diameter direction of the sealing cover.

By adopting the above technical solution, when the infusion tube is connected to the sealing cover, the infusion tube is perpendicular to the axis direction of the trocar. Such setting reduces the residual height of the infusion tube on the body surface, thereby reducing the risk of bending or even breaking the infusion tube.

Preferably, there are multiple infusion holes, and the multiple infusion holes are opened at intervals along the circumference of the sealing cover.

By adopting the above technical solution, multiple infusion holes can be connected with multiple infusion tubes, so that simultaneous injection of multiple medicines can be realized.

Preferably, the opening end of the sealing cover located at the infusion hole is integrally provided with a positive pressure joint.

By adopting the above-mentioned technical scheme and using the positive pressure connector, the infusion hole is continuously positive pressure after the infusion is completed, reducing the backflow of blood in the trocar, ensuring the patency of the trocar, and the design without sharps reduces the Incidence of needlestick injuries among healthcare workers.

Preferably, a limiting ring groove is provided in the sealing cover, and the plastic joint is located in the limiting ring groove of the sealing cover.

By adopting the above technical solution, when attaching and fixing the first trocar, the sealing cover is arranged on the plastic joint, and at this time the plastic joint is located in the limit ring groove, and the limit ring groove limits and fixes the plastic joint , so that the plastic joint is more stable.

Preferably, the sealing cover is located in the limiting ring groove and is detachably provided with a limiting sleeve, a through hole is formed in the limiting sleeve, and the alloy joint is located in the through hole of the limiting sleeve.

By adopting the above-mentioned technical scheme, when attaching and fixing the second trocar, first put the limit sleeve into the limit ring groove, and then set the sealing cover on the alloy joint. At this time, the alloy joint is at the position limit In the through hole of the sleeve, the through hole limits and fixes the alloy joint, thereby making the alloy joint more stable and realizing the purpose that two types of puncture needles currently on the market can be used.

Preferably, the annular fixation patch is a hypoallergenic polyurethane dressing.

By adopting the above-mentioned technical solution, the dressing made of polyurethane material has high plasticity, breathable and waterproof functions, and the low-sensitivity pressure-sensitive adhesive improves the patient's comfort while ensuring sufficient viscosity of the dressing.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The trocar is sealed and fixed by using the sealing cover and the ring-shaped fixing sticker, so that the joint of the trocar is in a completely sealed state, thereby improving the sealing effect of the fixer and reducing the infection of the patient's puncture point;

2. Through the use of multiple infusion holes, multiple drugs can be injected simultaneously to improve rescue efficiency;

3. By adopting the positive pressure connector, the infusion hole is continuously positive pressure after the infusion, which reduces the blood residue in the trocar, ensures the patency of the trocar, and reduces the incidence of needlestick injuries among medical staff;

4. Through the use of limit sleeves, the common use of trocars of different brands is realized;

5. Reduce the height of the retainer protruding from the body surface, reducing the risk of accidental bending or even breaking of the trocar.

Description of drawings

Fig. 1 is a schematic diagram of a trocar in the background technology of the present application;

Fig. 2 is the overall structural representation of the fixer for intraosseous transfusion of the present application;

Fig. 3 is a partial structural sectional view of the fixer for intraosseous transfusion of the present application;

Fig. 4 is a cross-sectional view of the overall structure of the fixer for intraosseous infusion of the present application.

Explanation of reference signs: 1. Sealing cover; 2. Thread groove; 3. Infusion hole; 4. Ring fixing sticker; 5. Positive pressure joint; 7. Limiting ring groove; 8. Limiting sleeve; 9. Through hole; 10. The first trocar; 11. The second trocar.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 2-4.

The embodiment of the present application discloses a fixator for intraosseous transfusion.

2 and 3, a fixer for intraosseous transfusion includes a cylindrical sealing cover 1, one end of the sealing cover 1 in the axial direction is open, and the sealing cover 1 is set on the joint of the trocar. A limiting ring groove 7 is provided in the opening end of the sealing cover 1, and a threaded groove 2 communicating with the limiting ring groove 7 is provided in the middle part of the top wall of the inner cavity of the sealing cover 1. Inside the threaded groove 2.

When the first trocar 10 needs to be fixed, the sealing cover 1 is rotated so that the installation end of the first trocar 10 is installed in the thread groove 2, and the sealing cover 1 can be connected with the first trocar 10 . At the same time, the plastic joint of the first trocar 10 is adapted to be located in the limiting ring groove 7 , so as to limit and fix the first trocar 10 .

Referring to Figures 3 and 4, the sealing cover 1 is located in the limit ring groove 7 and is rotated and detachably installed with a limit sleeve 8. The outer wall of the limit sleeve 8 abuts against the inner wall of the seal cover 1 and is located in the limit ring groove 7, and the limit sleeve A through-hole 9 with a rectangular cross-section is opened in 8 along the axial direction of the sealing cover 1 .

When the second trocar 11 needs to be fixed, the limit sleeve 8 is sleeved on the alloy joint of the second trocar 11. At this time, the alloy joint is matched in the through hole 9, and then the sealing cover The 1 cover is arranged on the second trocar 11, so that the limit sleeve 8 enters the limit ring groove 7, and the sealing cover 1 is rotated so that the installation end of the second trocar 11 is installed in the thread groove 2, and the The sealing cover 1 is connected with the second trocar 11 . At the same time, the alloy joint of the second trocar 11 is adapted to be located in the through hole 9 , so as to limit and fix the second trocar 11 . Using the spacer sleeve 8 realizes the purpose that the fixer can be used for two kinds of puncture needles currently on the market.

The side of the outer wall of the sealing cover 1 close to the opening end is integrally fixed with an annular fixing patch 4, and the annular fixing patch 4 is attached to the patient's skin. In this application, the annular fixing patch 4 can be selected as a hypoallergenic polyurethane dressing. The dressing made of transparent polyurethane material has high plasticity, breathable and waterproof functions, and the hypoallergenic pressure-sensitive adhesive improves the patient's comfort while ensuring sufficient adhesiveness of the dressing. Use the sealing cover 1 and the ring-shaped fixing sticker 4 to seal and fix the trocar, so that the joint of the trocar is in a completely sealed state, thereby improving the sealing effect of the fixer and reducing the infection of the puncture point of the patient. The ring-shaped fixation sticker reduces the sliding degree between the patch and the trocar and improves the stability of the fixation.

Two infusion holes 3 are provided on the end of the sealing cover 1 away from the opening, and the two infusion holes 3 are opened along the diameter direction of the sealing cover 1 and communicate with the threaded groove 2 . In the present application, three or four or more infusion holes 3 can also be opened, and a plurality of infusion holes 3 are provided at equal intervals along the circumference of the sealing cover 1, and a plurality of infusion holes 3 are all communicated with the threaded groove 2, and the sealing The open end of the cover 1 located at each infusion hole 3 is sealed and fixed with a positive pressure joint 5 .

After the sealing cover 1 is sealed and fixed, multiple infusion tubes of the infusion tube are connected to a plurality of positive pressure connectors 5, and the liquid medicine flows into the infusion hole 3 from the positive pressure connector 5, and then flows into the trocar from the infusion hole 3, and finally into the patient's bone. Multiple infusion holes 3 are set up, so that multiple drugs can be injected at the same time, which improves the rescue efficiency, and the positive pressure joint 5 reduces the backflow of blood in the trocar, ensures the patency of the trocar, and reduces needle stick injuries for medical staff incidence. At the same time, the infusion tube is perpendicular to the axial direction of the trocar, which reduces the residual height of the infusion tube on the body surface, thereby reducing the risk of bending or even breaking the infusion tube.

The implementation principle of the embodiment of the present application is: when the first trocar 10 needs to be fixed, the sealing cover 1 can be rotated to connect the sealing cover 1 with the first trocar 10; When the needle 11 is fixed, first set the limit sleeve 8 on the alloy joint of the second trocar 11, and then cover the sealing cover 1 on the second trocar 11, so that the limit sleeve 8 enters the limit position. In the ring groove 7, the sealing cover 1 can be rotated to connect the sealing cover 1 with the second trocar 11 . After the trocar is fixed, the ring-shaped fixing sticker 4 is attached to the patient's skin, and the sealing cover 1 and the ring-shaped fixing sticker 4 are used to seal and fix the trocar, so that the joint of the trocar is in a completely sealed state, thereby improving the The sealing and fixing effects of the fixer reduce the infection of the puncture point of the patient.

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims (7)

1. A fixator for intraosseous infusion, characterized in that: comprise a sealing cover (1) that is located on the trocar joint, and a screw groove (2) is provided in the sealing cover (1), and the trocar The mounting end on the joint is detachably arranged in the threaded groove (2) of the sealing cover (1), and an infusion hole (3) communicating with the threaded groove (2) is provided on the sealing cover (1). The bottom of the sealing cover (1) is integrally provided with a ring-shaped fixing sticker (4), and the ring-shaped fixing sticker (4) is attached to the patient's skin. 2. A fixator for intraosseous infusion according to claim 1, characterized in that: the infusion hole (3) is opened along the diameter direction of the sealing cover (1). 3. A fixer for intraosseous infusion according to claim 1, characterized in that: said infusion hole (3) is provided with a plurality, and a plurality of said infusion holes (3) are arranged along the sealing cover (1) Circumferentially spaced. 4. The fixer for intraosseous infusion according to claim 1, characterized in that: the opening end of the sealing cover (1) located at the infusion hole (3) is integrally provided with a positive pressure joint (5). 5. A fixer for intraosseous infusion according to claim 1, characterized in that: a limiting ring groove (7) is opened in the sealing cover (1), and the plastic joint is located at the bottom of the sealing cover (1). Inside the limit ring groove (7). 6. A fixer for intraosseous infusion according to claim 5, characterized in that: the sealing cover (1) is located in the limiting ring groove (7) and is detachably provided with a limiting sleeve (8), the A through hole (9) is formed in the limit sleeve (8), and the alloy joint is located in the through hole (9) of the limit sleeve (8). 7. A fixator for intraosseous transfusion according to claim 1, characterized in that: said annular fixation patch (4) is a hypoallergenic polyurethane dressing.

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