CN220236982U - Two-in-one thoracentesis device - Google Patents

Abstract

The utility model relates to the field of medical equipment. A two-in-one thoracentesis device includes a cannula and a lancet. The cannula includes a front section of the cannula and a rear section of the cannula. The rear section of the cannula has a bar-shaped through groove and a limiting groove formed by connecting the arc-shaped through grooves; The tube also includes four support bars. The front part of the lancet is provided with a first stopper, which is pressed against the front section of the casing. The rear part of the needle is provided with a second stopper, and the second stopper is located in the limiting groove. ; The lancet includes a needle and a syringe. The needle is rotatably connected to the syringe. The interior of the syringe is hollow. The detection head of the pinhole endoscope is inserted into the hollow cavity of the syringe. The utility model combines a puncture device and a pinhole endoscope into one, and is more efficient when performing sympathetic nerve chain severing.

Description

2-in-1 thoracentesis device

Technical field

The utility model relates to the field of medical instruments, in particular to a thoracentesis device.

Background technique

When performing sympathotomy, a single hole of about 5-10mm needs to be cut in the patient's chest first; then a puncture device is inserted through the single hole; then a pinhole endoscope is inserted along the incision, and the puncture device is withdrawn; and then the puncture device is inserted along the incision. Insert the electric hook and linear suction device, quickly locate the 3rd and 4th ribs, cut off the T3 and T4 thoracic sympathetic nerve chains, and extend 2cm outward along the rib surface to cut off the bypass conduction; then withdraw from the pinhole endoscopic row After breathing out the gas, withdraw the electric hook and linear suction device, and suture the wound layer by layer. The operation is cumbersome and inconvenient.

Utility model content

The purpose of this utility model is to provide a two-in-one thoracentesis device to solve the above problems.

The technical problems solved by this utility model can be achieved by adopting the following technical solutions:

The two-in-one thoracentesis device includes a puncture cannula and a puncture needle inserted in the cannula. It is characterized in that the cannula includes a cylindrical front section of the cannula located at the front, a cannula at the rear and a puncture needle inserted into the cannula. The rear section of the casing is cylindrical. The rear section of the casing is provided with a line-shaped strip groove extending in the axial direction. The rear section of the casing is also provided with two radially extending strips. An arc-shaped through groove, with a gap between two arc-shaped through grooves, and the two arc-shaped through grooves are respectively connected with the strip-shaped through groove to form a limiting groove;

The casing also includes at least four strip-shaped support bars made of elastic material. The front end of each support bar is fixedly connected to the front section of the casing, and the rear end of each support bar is connected to the rear section of the casing. Each support bar is connected to the casing. The central axes are arranged at equal intervals in the center, and there is a gap between two adjacent support bars;

The front part of the lancet is provided with a ring-shaped first stopper, and the first stopper is pressed against the front section of the casing; the rear part of the needle is provided with a cylindrical second stopper. The second stopper is located in the limiting groove;

The lancet includes a needle and a syringe. The needle is rotatably connected to the syringe. The interior of the syringe is hollow. The detection head of the pinhole mirror is inserted into the hollow cavity of the syringe.

Usage method: This utility model combines a puncture device and a pinhole endoscope into one. When performing a sympathetic nerve chain cut-off, a single hole of about 5-10mm is first cut in the chest of the surgical patient; then the utility model is inserted through the single hole. ; Then pull the needle back until the second stopper snaps into the arc-shaped channel away from the front section of the sleeve. In this process, the first stopper drives the front section of the sleeve closer to the rear section of the sleeve, thus forcing the support bar to deform outwards. , prop up the chest to leave room for the pinhole endoscope to move; then push out the pinhole endoscope, push open the needle, and leak out of the needle barrel, and then push or rotate the pinhole endoscope to allow the pinhole endoscope to pass through to the location that needs to be observed.

Beneficial effects: First, the pinhole endoscope of the present invention enters the chest cavity with the puncture device, which is more efficient than the sequential insertion method in the background art. Secondly, the puncture cannula and puncture needle of the present invention do not need to be withdrawn during the sympathetic nerve chain cut-off operation. On the one hand, the efficiency can be further improved. On the other hand, the support strips on the puncture cannula can support the chest cavity. , providing a relatively stable operating space for the pinhole endoscope.

Preferably, a suction tube of a linear suction device is inserted into the hollow cavity of the syringe. This achieves a three-in-one system of puncture device, pinhole endoscope and linear aspirator.

Preferably, the operating head of the electric hook is also inserted into the hollow cavity of the syringe. This achieves a four-in-one system of puncture device, pinhole endoscope, electric hook, and linear suction device.

The casing also includes a connecting ring. The rear ends of each support bar are fixedly connected to the connecting ring. The connecting ring is threadedly connected to the rear section of the casing. The front end of the strip-shaped channel is connected to the casing. The front end of the rear section of the tube is flush. Therefore, the support bar can be detached from the rear section of the casing, so that the second stopper can be inserted into the strip-shaped channel from the front end of the rear section of the casing.

Description of drawings

Figure 1 is a partial structural diagram of the utility model;

Figure 2 is a schematic structural diagram of the sleeve in Figure 1;

Figure 3 is a schematic structural diagram of the lancet in Figure 1;

Figure 4 is a partial structural perspective view of the lancet;

Figure 5 is a schematic structural diagram of the utility model in one state;

Figure 6 is a schematic structural diagram of the utility model in another state.

Detailed ways

In order to make it easy to understand the technical means, creative features, objectives and effects of the present utility model, the present utility model will be further described below in conjunction with specific illustrations.

Referring to Figures 1, 2, 3, 4, 5 and 6, the purpose of this utility model is to integrate at least one of a pinhole endoscope, an electric hook and a linear suction device on a puncture device.

About the trocar

The puncture device includes a puncture cannula and a puncture needle inserted in the cannula. The casing includes a cylindrical front casing section 1 located at the front and a cylindrical casing rear section 2 located at the rear. The casing rear section 2 has a line-shaped strip extending along the axial direction. Through slot 5, there are two arc-shaped arc-shaped channels extending in the radial direction on the rear section 2 of the casing. There is a gap between the two arc-shaped channels. The two arc-shaped channels are connected with the strip channel respectively. The grooves 5 are connected to form a limiting groove. The casing also includes at least four strip-shaped support bars 3 made of elastic material. The front end of each support bar 3 is fixedly connected to the front section 1 of the casing, and the rear end of each support bar 3 is connected to the rear section 2 of the casing. 3 are arranged at equal intervals with the central axis of the casing as the center, and there is a gap between two adjacent support bars 3. The front part of the lancet needle is provided with an annular first stopper 8, which is pressed against the front section 1 of the casing; the rear part of the needle 14 is provided with a cylindrical second stopper 9, which is Located in the limit slot.

The arcuate channel close to the front section 1 of the casing is used as the first arcuate channel 6 , and the arcuate channel far away from the front section 1 of the casing is used as the second arcuate channel 7 . When the second stopper 9 is located in the first arc-shaped channel 6, the support bar 3 fits outside the lancet, that is, the support bar 3 is flat. When the second stopper 9 is located in the second arc-shaped channel 7, the support bar 3 bulges outward, that is, the support bar 3 is arc-shaped. The swollen support bars 3 can, on the one hand, avoid blocking other operating components, thereby facilitating operation; on the other hand, they can support the chest cavity, thereby facilitating the displacement of the operating components in the chest cavity, and at the same time, facilitating the discharge of air from the chest cavity.

About pinhole endoscopy

The pinhole endoscope includes a detection head 11, which is usually linear. The lancet includes a needle 14 and a syringe. The needle 14 is rotatably connected to the syringe. The interior of the syringe is hollow. The detection head 11 of the pinhole endoscope is inserted into the hollow cavity of the syringe.

About linear attractor

The linear suction device includes a suction tube 13. The suction tube 13 of the linear suction device is also inserted into the hollow cavity of the syringe.

Either one of the suction tube 13 and the detection head 11 is provided with an annular annular protrusion. The needle is connected to an annular slip ring through a connecting rope. The slip ring is sleeved on the suction tube 13 or the annular protrusion. on the detection head 11. In this way, after use, the suction tube 13 and the detection head 11 are withdrawn, and the suction tube 13 and the detection head 11 pull the needle to close on the syringe through the slip ring and the annular protrusion, thereby facilitating the withdrawal of the puncture device.

About electric hook

The electric hook includes an operating head 12. Although the operating head 12 has a certain hardness, it can be bent by hand. The operating head 12 of the electric hook is inserted into the hollow cavity of the syringe.

The name of this utility model is a two-in-one thoracentesis device, but it allows the puncture device, pinhole endoscope, and electric hook to be integrated into three into one. It can also integrate the puncture device, pinhole endoscope, electric hook, and linear suction device into four. Oneness.

Two-in-one thoracentesis device, preferably two integrated thoracentesis devices and pinhole endoscope. At this time, the usage method is as follows: first cut a single hole of about 5-10mm in the chest of the surgical patient; then insert the two-in-one thoracentesis device through the single hole; then pull the second stopper 9 and snap it into the second arc channel , during this process, the support bar 3 protrudes outward to support the chest; then push or rotate the pinhole endoscope until the pinhole endoscope passes through to the position that needs to be observed. Then insert the electric hook and linear suction device along the incision, quickly locate the 3rd and 4th ribs, cut off the T3 and T4 thoracic sympathetic nerve chains, and extend 2cm outward along the rib surface to cut off the bypass conduction; then withdraw the electric hook and a linear suction device, move the second stopper 9 into the first arc-shaped channel, reset the support bar 3, then exit the utility model, and suture the wound layer by layer.

When the puncture device, pinhole endoscope, electric hook, and linear aspirator are four-in-one, the method of use is as follows: first cut a single hole of about 5-10mm in the chest of the surgical patient; then insert the utility model through the single hole; Then pull the second stopper 9 and snap it into the second arc-shaped channel. During this process, the support bar 3 protrudes outward to support the chest; then push or rotate the detection head 11 of the pinhole endoscope to the pinhole endoscope. Pass to the position that needs to be observed, push or turn the operating head 12 of the electric hook, cut off the T3 and T4 thoracic sympathetic nerve chains, and extend 2cm outward along the rib surface to cut off the bypass conduction, push or turn the linear suction device The suction tube 13 is used to suck out blood congestion, fluid accumulation, and cut objects; then pull back the detection head 11, operating head 12, and suction tube 13 to the initial position, and move the second stopper 9 into the first arc-shaped channel, so that the support bar 3 Reset; then exit the utility model and suture the wound layer by layer.

In order to enable the hard second stopper 9 and the hard lancet to be in place, the sleeve is preferably of a split structure. That is, the casing also includes a connecting ring 4. The rear ends of each support bar 3 are fixedly connected to the connecting ring 4. The connecting ring 4 is threadedly connected to the rear section 2 of the casing, and the front end of the strip channel 5 is connected to the rear section 2 of the casing. The front end is flush. Thereby, the support bar 3 can be detached from the rear section 2 of the casing, so that the second stopper 9 can be inserted into the strip-shaped channel 5 from the front end of the rear section 2 of the casing.

In order to reduce the situation that the detection head 11, the operating head 12, and the suction tube 13 drive the cannula and the lancet to shake during the pulling process, it is preferable to provide a limiting piece 10 outside the connecting ring 4. Therefore, the limiting piece and the supporting strip are used to better fix the new device on the human body.

In order to facilitate pulling the lancet, an outwardly extending handle 15 can be provided on the outside of the end of the lancet away from the needle.

The basic principles and main features of the present utility model and the advantages of the present utility model are shown and described above. Those skilled in the industry should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model can be There will also be various changes and improvements in the new model, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. The two-in-one thoracic cavity puncture device comprises a puncture sleeve and a puncture needle inserted into the sleeve, and is characterized in that the sleeve comprises a front sleeve section which is in a cylindrical shape and positioned at the front part, and a rear sleeve section which is in a cylindrical shape and positioned at the rear part, a strip-shaped through groove which extends along the axial direction and is in a line segment shape is formed in the rear sleeve section, two arc-shaped through grooves which extend along the radial direction are formed in the rear sleeve section, a gap is reserved between the two arc-shaped through grooves, and a limiting groove is formed after the two arc-shaped through grooves are respectively communicated with the strip-shaped through grooves;

the sleeve also comprises at least four strip-shaped support bars made of elastic materials, the front ends of the support bars are fixedly connected with the front section of the sleeve, the rear ends of the support bars are connected with the rear section of the sleeve, the support bars are distributed at equal intervals by taking the central axis of the sleeve as the center, and a gap is reserved between two adjacent support bars;

the needle comprises a needle head and a needle cylinder, the needle head is rotatably connected with the needle cylinder, the interior of the needle cylinder is hollow, and the detection head of the pinhole endoscope is inserted into the hollow cavity of the needle cylinder;

the front part of the puncture needle is provided with a first annular blocking head which is propped against the front section of the sleeve; the rear part of the needle head is provided with a columnar second blocking head which is positioned in the limit groove.

2. The two-in-one thoracocentesis device according to claim 1, wherein the hollow cavity of the needle cylinder is further inserted with a suction tube of a linear suction device.

3. The two-in-one thoracocentesis device according to claim 1, wherein the hollow cavity of the needle cylinder is further inserted with an operating head of an electric hook.

4. The two-in-one chest puncture device according to any one of claims 1 to 3, wherein the sleeve further comprises a connecting ring, the rear ends of the supporting bars are fixedly connected to the connecting ring, the connecting ring is in threaded connection with the rear section of the sleeve, and the front ends of the strip-shaped through grooves are flush with the front ends of the rear section of the sleeve.

5. The two-in-one thoracocentesis device of claim 4, wherein the connector ring is externally provided with a stop tab.

6. The two-in-one pneumothorax puncture outfit according to any one of claims 1 to 3, wherein the needle is connected with a ring-shaped slip ring through a connecting rope, and the slip ring is sleeved on the detection head.

7. A two-in-one pneumothorax puncture outfit according to any one of claims 1-3, wherein a handle extending outwards is arranged outside the end of the puncture needle away from the needle.