CN221105968U - Arterial trocar - Google Patents

Abstract

The utility model relates to the technical field of medical treatment and discloses an arterial trocar which comprises a positive pressure joint, an extension pipe, a fixed valve and a three-way pipe, wherein the lower end of the positive pressure joint is communicated with the upper end of the extension pipe, the lower end of the extension pipe is communicated with the three-way pipe, the fixed valve sleeve is arranged on the extension pipe, a separation plug and a puncture needle are arranged in the three-way pipe, the puncture needle penetrates through the separation plug, a first fixed cap is arranged at one end of the separation plug far away from the three-way pipe, the first fixed cap is detachably connected with the separation plug, the first fixed cap is fixedly connected with one end of the puncture needle, a catheter is sleeved at one end of the puncture needle far away from the first fixed cap, a joint is arranged on the outer side wall of the three-way pipe, a second fixed cap is arranged on the fixed valve, and the joint is in threaded connection with the second fixed cap; after the patient finishes the infusion, the extension tube is wound on the hand, the fixed valve is slid, the second fixed cap on the fixed valve is sleeved on the joint on the three-way pipe, the extension tube can be stored, the extension tube is prevented from scattering, the sleeve is prevented from being offset, and the pain of the patient is increased.

Description

Arterial trocar

Technical Field

The utility model relates to the technical field of medical treatment, in particular to an arterial trocar.

Background

Neurology belongs to a medical system, mainly adopts drug treatment in treatment, and needs to use a trocar when delivering drugs. The trocar is composed of a puncture needle, a sleeve and an extension tube, when in use, a doctor holds the rear end of the trocar to puncture, the sleeve is separated from the puncture needle after the puncture is finished, and the liquid medicine flows into an arterial vessel through the extension tube on the sleeve.

The arterial trocar in the prior art has the defect that the extension tube is inconvenient to store, a doctor separates the infusion tube from the extension tube on the trocar after the infusion is finished for a patient, the extension tube is attached to the arm or the wrist of the patient by using double-sided adhesive tape, but the extension tube is easy to scatter due to the gradual weakening of the double-sided adhesive tape, so that the sleeve is offset, and the pain of the patient is increased, and therefore, the arterial trocar convenient for storing the extension tube is provided.

Disclosure of Invention

The utility model aims to provide an arterial trocar so as to solve the defect that an arterial trocar extension tube is inconvenient to store.

In order to achieve the above object, the basic scheme of the present utility model is as follows: an arterial trocar comprises a positive pressure joint, an extension tube, a fixed valve and a three-way tube, wherein the lower end of the positive pressure joint is communicated with the upper end of the extension tube, the lower end of the extension tube is communicated with the three-way tube, the fixed valve sleeve is arranged on the extension tube, the bottom of the three-way tube is provided with a needle holding handle, and the three-way tube and the needle holding handle are integrally arranged; be equipped with isolation plug, pjncture needle and pipe in the three-way pipe, pipe one end is fixed in the three-way pipe head, the pjncture needle runs through in the isolation plug, the one end that the three-way pipe was kept away from to the isolation plug is equipped with first fixed cap, and first fixed cap can dismantle with the isolation plug and be connected, first fixed cap and pjncture needle one end fixed connection, the pjncture needle is kept away from in the one end cover of first fixed cap locates the pipe, the three-way pipe lateral wall is equipped with the joint, the joint lateral wall is equipped with the external screw thread, be equipped with second fixed cap, circular slot and conical slot on the fixed valve, conical slot and circular slot an organic whole set up, second fixed cap inside wall is equipped with the internal screw thread.

After the scheme is adopted, the following beneficial effects are realized: when the trocar is used, a doctor pushes the first fixing cap forwards to drive the isolation plug and the puncture needle penetrating through the isolation plug to move forwards, the puncture needle penetrates through the catheter to puncture the skin of a patient, the first fixing cap is detached from the isolation plug, the puncture needle fixed on the first fixing cap can be pulled back by pulling the first fixing cap back, and the catheter is kept in a blood vessel of the patient; after the patient finishes liquid infusion, the extension tube is wound on the hand, the fixed valve is slid, the second fixed cap on the fixed valve is sleeved on the joint on the three-way pipe, the purpose of accommodating the extension tube can be achieved, the extension tube and the three-way pipe are connected more firmly through threaded connection, the extension tube is prevented from scattering, the sleeve is prevented from being offset, and pain of the patient is increased; the circular groove on the fixed valve is used for adjusting the length, so that patients with different wrist sizes can use the circular groove conveniently, the conical groove on the fixed valve not only can fix the position of the fixed valve, but also can prevent air from entering the catheter along the extension tube from the positive pressure connector when the positive pressure connector is separated from the infusion tube, and can also prevent blood from flowing back.

In a preferred embodiment of the present utility model, the positive pressure joint includes a first inlet and a second inlet, and the first inlet and the second inlet are integrally provided in a V-shape.

The beneficial effects are that: the positive pressure connector comprises the first inlet and the second inlet, so that the requirements of inputting different liquid medicines in different time periods can be met, and the second inlet can be used as a standby inlet to continuously convey the liquid medicines after the first inlet is polluted.

In a preferred embodiment of the present utility model, a positive pressure valve is provided at an upper end of the first inlet, and the first inlet is screwed to the positive pressure valve.

The beneficial effects are that: when the infusion tube is provided with a needle, the infusion tube can puncture rubber on the positive pressure valve to convey liquid medicine.

In a preferred embodiment of the present utility model, an end cap is provided at an upper end of the second inlet, and the second inlet is screwed to the end cap.

The beneficial effects are that: when the infusion tube is not provided with a needle, the end cap at the upper end of the second inlet can be detached, and the infusion tube is directly communicated with the second inlet to convey the liquid medicine.

In a preferred form of the utility model, the needle holder is butterfly-shaped.

The beneficial effects are that: the butterfly needle handle is more convenient for medical staff to hold, improves stability.

In a preferred form of the utility model, the needle holder is provided with rounded protruding pellets.

The beneficial effects are that: the needle holding handle is provided with the round protruding particles, so that medical staff can be prevented from sliding when using the needle holding handle, and the three-way pipe and the catheter are prevented from being deviated.

In a preferred form of the utility model, the catheter is provided with graduations.

The beneficial effects are that: the scale is arranged on the catheter, so that the length of the catheter entering the blood vessel can be conveniently observed, and discomfort of a patient caused by over-deep insertion of the catheter is avoided.

Drawings

Fig. 1 is an isometric view of an embodiment of the utility model.

FIG. 2 is a front view of a stationary valve according to an embodiment of the present utility model

Reference numerals in the drawings of the specification include: positive pressure connector 1, extension tube 2, fixed valve 3, tee 4, isolation plug 5, catheter 6, needle holder 7, puncture needle 8, end cap 11, positive pressure valve 12, second fixed cap 31, conical groove 32, circular groove 33, connector 41, first fixed cap 42, circular protruding particle 71.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "vertical," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model.

In the description of the present utility model, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.

The utility model provides an arterial trocar, as shown in figures 1 and 2, which comprises a positive pressure joint 1, an extension tube 2, a fixed valve 3 and a three-way tube 4, wherein the lower end of the positive pressure joint 1 is communicated with the upper end of the extension tube 2, the lower end of the extension tube 2 is communicated with the three-way tube 4, the fixed valve 3 is sleeved on the extension tube 2, the bottom of the three-way tube 4 is provided with a needle holding handle 7, and the three-way tube 4 and the needle holding handle 7 are integrally arranged; the three-way pipe 4 is internally provided with a separation plug 5, a puncture needle 8 and a guide pipe 6 which are in sliding fit with the three-way pipe 4, one end of the guide pipe 6 is fixed at the head of the three-way pipe 4, the puncture needle 8 penetrates through the separation plug 5 and is fixed with the separation plug 5, one end of the separation plug 5 far away from the three-way pipe 4 is provided with a first fixing cap 42, the first fixing cap 42 is detachably connected with the separation plug 5, the first fixing cap 42 is fixedly connected with one end of the puncture needle 8, one end of the puncture needle 8 far away from the first fixing cap 42 is sleeved in the guide pipe 6, a scale is arranged on the guide pipe 6, the outer side wall of the three-way pipe 4 is provided with a joint 41, the outer side wall of the joint 41 is provided with external threads, the fixing valve 3 is provided with a second fixing cap 31, a circular groove 33 and a conical groove 32, the conical groove 32 is integrally arranged with the circular groove 33, and the inner side wall of the second fixing cap 31 is provided with internal threads;

the positive pressure joint 1 comprises a first inlet and a second inlet, the first inlet and the second inlet are integrally arranged in a V shape, a positive pressure valve 12 is arranged at the upper end of the first inlet, the first inlet is in threaded connection with the positive pressure valve 12, an end cap 11 is arranged at the upper end of the second inlet, and the second inlet is in threaded connection with the end cap 11; the needle holding handle 7 is butterfly-shaped, and the needle holding handle 7 is provided with round protruding particles 71.

The scheme is as follows: after the blood vessel and the sterilized puncture part are selected to be dried, a medical staff holds the needle handle 7 by hand, the first fixing cap 42 is pushed towards the puncture part by using the thumb, the first fixing cap 42 drives the isolation plug 5 and the puncture needle 8 penetrating through the isolation plug 5 to move forwards, the puncture needle 8 penetrates through the catheter 6 and then punctures the skin of a patient, scales on the catheter 6 are observed in the puncturing process to determine the puncture depth, then the needle head of the infusion tube is inserted into the positive pressure valve 12, so that the liquid medicine enters the first introduction port and flows to the three-way tube 4 along the extension tube 2, then the first fixing cap 42 is detached from the isolation plug 5, the puncture needle 8 fixed on the first fixing cap 42 is pulled back, the catheter 6 is continuously left in the blood vessel of the patient, the liquid medicine flows into the blood vessel of the patient through the catheter 6 in the three-way tube 4, and the catheter 6 and the three-way tube 4 are fixed on the wrist of the patient through double-sided adhesion.

The needle holding handle 7 is butterfly-shaped, and the round protruding particles 71 arranged on the needle holding handle 7 are convenient for medical staff to hold, and meanwhile, the medical staff is prevented from sliding when using the needle holding handle 7, so that the three-way pipe 4 and the catheter 6 deviate, scales on the catheter 6 are observed in the puncturing process, and discomfort of a patient caused by too deep length of the catheter 6 entering a blood vessel can be avoided.

After the patient finishes transfusion, medical staff separates the infusion tube from the positive pressure valve 12, winds the extension tube 2 on the wrist, slides the fixed valve 3, can realize the purpose of accommodating the extension tube 2 by sleeving the second fixed cap 31 on the fixed valve 3 on the joint 41 on the three-way tube 4, and the threaded connection ensures that the connection between the extension tube 2 and the three-way tube 4 is firmer, so that the extension tube 2 is prevented from scattering to avoid sleeve deflection and the pain of the patient is increased; the circular groove 33 on the fixed valve 3 is used for adjusting the length, so that patients with different wrist sizes can use the device conveniently, the conical groove 32 on the fixed valve 3 not only can fix the position of the fixed valve 3, but also can prevent air from entering the catheter 6 from the positive pressure connector 1 along the extension tube 2 when the positive pressure connector 1 is separated from the infusion tube, and can also prevent blood from flowing back; the positive pressure connector 1 is provided with the second inlet, so that the requirements of inputting different liquid medicines in different time periods can be met, and the liquid medicines can be continuously conveyed by taking the second inlet as a standby inlet after the first inlet is polluted.

The foregoing is merely exemplary of the present utility model and the specific structures and/or characteristics of the present utility model that are well known in the art have not been described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (7)

1. The utility model provides an arterial trocar, includes malleation joint, extension pipe, fixed valve, three-way pipe, malleation joint lower extreme and extension pipe upper end intercommunication, extension pipe lower extreme and three-way pipe intercommunication, and fixed valve is established on the extension pipe, its characterized in that: the bottom of the three-way pipe is provided with a needle holding handle, and the three-way pipe and the needle holding handle are integrally arranged; be equipped with isolation plug and pjncture needle in the three-way pipe, the pjncture needle runs through in the isolation plug, the one end that the three-way pipe was kept away from to the isolation plug is equipped with first fixed cap, and first fixed cap can dismantle with the isolation plug and be connected, first fixed cap and pjncture needle one end fixed connection, the one end cover that the first fixed cap was kept away from to the pjncture needle is equipped with the pipe, the three-way pipe lateral wall is equipped with the joint, the joint lateral wall is equipped with the external screw thread, be equipped with second fixed cap, circular slot and toper groove on the fixed valve, toper groove and the integrative setting of circular slot, second fixed cap inside wall is equipped with the internal screw thread.

2. An arterial trocar as claimed in claim 1, wherein: the positive pressure joint comprises a first inlet and a second inlet, and the first inlet and the second inlet are integrally arranged in a V shape.

3. An arterial trocar as claimed in claim 2, wherein: the upper end of the first inlet is provided with a positive pressure valve, and the first inlet is in threaded connection with the positive pressure valve.

4. An arterial trocar as claimed in claim 3, wherein: the upper end of the second inlet is provided with an end cap, and the second inlet is in threaded connection with the end cap.

5. The arterial trocar of claim 4, wherein: the needle holding handle is butterfly-shaped.

6. An arterial trocar as claimed in claim 5, wherein: the needle holding handle is provided with round protruding grains.

7. The arterial trocar of claim 6, wherein: the guide tube is provided with scales.