CN219700095U - Hand-held coagulation puncture outfit - Google Patents

Abstract

The utility model discloses a hand-held coagulation puncture outfit, which comprises a shell and a puncture sleeve detachably connected with the shell; at least one pair of electrodes for electrifying to ablate tissues and stop bleeding are arranged in the puncture sleeve; the pair of electrodes includes a positive electrode and a negative electrode; the working end of the electrode extends out of the puncture sleeve; the shell is provided with a grab handle which is convenient to hold and a connector which is used for being connected with a host. The hand-held coagulation puncture outfit with the structure combines the electric knife with the puncture outfit, cuts and stops bleeding by utilizing the electric knife, penetrates the puncture outfit into tissues while cutting, reduces operation steps and shortens operation time.

Description

Hand-held coagulation puncture outfit

Technical Field

The utility model relates to a minimally invasive puncture outfit.

Background

The disposable minimally invasive puncture outfit is an important instrument in endoscopic surgery, is an external chest and external abdominal cavity matched surgical instrument, and is suitable for thoracic cavity and abdominal cavity endoscopic examination and instruments for establishing thoracic cavity and abdominal cavity surgical working channels in the surgical process. At the beginning of laparoscopic surgery, the skin epidermis is incised at a selected puncture site with a scalpel, and then penetrated through the skin and into a body cavity with a needle-penetrating portion of a puncture outfit and a puncture cannula.

The existing puncture mode has two problems, namely, the bleeding of a patient can be caused during cutting and puncture; secondly, the operation is complicated, and the operation needs to be performed by cutting with a scalpel and then puncturing with a puncture outfit.

Disclosure of Invention

In view of the above, the present utility model provides a hand-held coagulation puncture outfit, which can perform puncture once and stop bleeding.

In order to solve the technical problems, the technical scheme of the utility model is that the hand-held coagulation puncture outfit comprises a shell and a puncture sleeve detachably connected with the shell; at least one pair of electrodes for electrifying to ablate tissues and stop bleeding are arranged in the puncture sleeve; the pair of electrodes includes a positive electrode and a negative electrode; the working end of the electrode extends out of the puncture sleeve; the shell is provided with a grab handle which is convenient to hold and a connector which is used for being connected with a host.

As an improvement, the positive electrode and the negative electrode comprise an outer tube and a water inlet tube which are arranged in a sleeved mode, and a cavity is formed between the outer tube and the inner tube; the water inlet pipe, the cavity and the water return pipe are communicated.

As a further improvement, the joint comprises a cooling water joint which is connected with the water inlet pipe and the water return pipe of the electrode by hoses respectively.

As another still further improvement, the tab includes an electrical tab connected to the positive electrode and the negative electrode, respectively, with flexible wires.

As an improvement, the puncture cannula comprises a tube body, and the front end of the tube body is conical.

As an improvement, the puncture cannula is connected with the shell by a quick-release mechanism; the quick-dismantling mechanism comprises a fixed block and a fastening cover; the fixed block is conical, a mounting hole for accommodating the puncture sleeve is formed in the fixed block, threads are formed in the conical surface of the fixed block, and the fixed block is axially split into a plurality of blocks; the fastening cover is provided with a conical hole consistent with the appearance of the fixed block, and the inner wall of the conical hole is provided with internal threads.

As an improvement, a supporting piece extending into the puncture cannula is arranged in the shell, and the supporting piece is made of insulating materials; the positive electrode and the negative electrode are clamped on the supporting piece and separated by the supporting piece.

The utility model has the advantages that: the hand-held coagulation puncture outfit with the structure combines the electric knife with the puncture outfit, cuts and stops bleeding by utilizing the electric knife, penetrates the puncture outfit into tissues while cutting, reduces operation steps and shortens operation time.

Drawings

Fig. 1 is a schematic view of the appearance structure of the present utility model.

Fig. 2 is a schematic diagram of the internal structure of the present utility model.

Fig. 3 is a schematic structural view of an electrode.

Fig. 4 is a schematic view of a support.

The marks in the figure: 1 puncture sleeve, 2 shell, 3 positive electrode, 4 negative electrode, 5 grab handle, 6 switch, 8 cooling water joint, 9 electric joint, 10 quick detach mechanism, 11 support piece, 101 fastening lid, 102 fixed block, 31 outer tube, 32 inlet tube, 33 wet return.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the following specific embodiments.

As shown in fig. 1 and 2, the utility model comprises a shell 2 and a puncture cannula 1 detachably connected with the shell 2; the puncture cannula 1 comprises a tube body, the front end of which is conical. At least one pair of electrodes for electrifying to ablate tissues and stop bleeding are arranged in the puncture sleeve 1; the pair of electrodes includes one positive electrode 3 and one negative electrode 4; the working end of the electrode extends out of the puncture cannula 1; the housing 2 is provided with a handle 5 for easy holding and a connector for connection with a host.

The principle of the utility model is that the tissue is heated when the high-frequency high-voltage current generated by the electrode tip contacts with the organism, so as to separate and solidify the organism tissue, thereby achieving the purposes of cutting and hemostasis. The puncture cannula follows the electrode into the tissue to complete the puncture in one step while cutting.

As shown in fig. 3, in particular, in this embodiment, each of the positive electrode 3 and the negative electrode 4 includes an outer tube 31 and an inlet tube 32 that are disposed in a sleeved manner, and a cavity is formed between the outer tube 31 and the inner tube 32; and the water return pipe 33 is arranged on the outer pipe 31, and the water inlet pipe 31, the cavity and the water return pipe 33 are communicated.

The high temperature electrode can cause rapid drying and carbonization of tissues, and a phenomenon of 'sticking knife' appears, and more time is required for cleaning the electrode. The radio frequency energy density of the periphery of the electrode is far greater than that of the far distance, so that tissues around the electrode are more easily dehydrated and dried, if the tissues around the electrode are dehydrated and dried too early, the radio frequency energy cannot be transmitted to the tissues farther away, the far distance tissues cannot be stopped, and the hemostatic range is greatly reduced. Each electrode is hollow and provided with a cavity for cooling medium to flow; the cooling medium flows through the inside of the electrode to take away the heat of the electrode; the temperature of the electrode is not too high (kept at about 25 ℃), and the tissue around the electrode is not dried prematurely, and no occurrence of

The phenomenon of sticking the knife can transmit the radio frequency energy to make the remote tissues produce heat, dehydrate and stop bleeding. After the power is applied, the radio frequency energy can generate an approximately cuboid ablation area (or an ablation area with a quadrilateral/trapezoid cross section) in the tissue, and after multiple ablations, a three-dimensional solidification band is formed on the tissue, and each side or surface forming the solidification band is relatively straight (straight side and plane), so that the cutting is facilitated.

Since the cooling water is provided, the connector in this embodiment includes the electrical connector 9 and the cooling water connector 8. The electrical tabs 9 are connected to the positive electrode 3 and the negative electrode 4, respectively, with flexible wires. The cooling water joint 8 is connected with a water inlet pipe 31 and a water return pipe 33 of the electrode by hoses respectively. The corresponding hosts also comprise a radio frequency host for electrically cutting hemostasis and a cooling host for cooling water circulation. The host is in the prior art and is not the point of the utility model, so the structure is not repeated in the utility model.

In order to facilitate the disassembly and assembly of the puncture cannula 1, the puncture cannula 1 is connected with the shell 2 by utilizing a quick disassembly mechanism 10; the quick release mechanism 10 comprises a fixed block 102 and a fastening cover 101; the fixed block 102 is conical, a mounting hole for accommodating the puncture cannula 1 is formed in the fixed block 102, threads are formed in the conical surface of the fixed block 102, and the fixed block 102 is axially split into a plurality of blocks; the fastening cover 101 has a tapered hole conforming to the outer shape of the fixing block 102, and the inner wall of the tapered hole is provided with an internal thread. The fastening cap 101 and the conical surface of the fixing block 102 are matched with each other to clamp the puncture cannula 1.

As shown in fig. 4, in order to avoid contact short-circuiting between the positive electrode 3 and the negative electrode 4, a support 11 extending into the puncture cannula 1 is provided in the housing 2, the support 11 being made of an insulating material such as rubber; the positive electrode 3 and the negative electrode 4 are clamped on the support 11 and are separated by the support 11.

In the utility model, the electrodes can be arranged in a plurality of pairs, such as two pairs, in a cross shape. Or a pair of the two can be arranged side by side.

In addition, for convenient handling, a grip 5 may be provided on the side of the housing 2, shaped like a pistol for convenient handling. It is envisioned that a switch 6 may be provided on the housing 2 to facilitate control.

When the disposable puncture cannula 1 is used, the disposable puncture cannula 1 is connected with the shell 2 through the quick-release mechanism 10, the human tissue is cut by utilizing radio frequency generated between the positive electrode 3 and the negative electrode 4, and simultaneously, the blood vessel is atrophic by heat during cutting, so that hemostasis is achieved. The puncture cannula 1 follows the electrode to move in the human tissue to complete the puncture work. After the puncture is finished, the puncture cannula 1 is detached and left in the human body.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the utility model, and the scope of the utility model should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.

Claims (7)

1. A hand-held coagulation puncture outfit, characterized in that: comprises a shell and a puncture cannula detachably connected with the shell; at least one pair of electrodes for electrifying to ablate tissues and stop bleeding are arranged in the puncture sleeve; the pair of electrodes includes a positive electrode and a negative electrode; the working end of the electrode extends out of the puncture sleeve; the shell is provided with a grab handle which is convenient to hold and a connector which is used for being connected with a host.

2. The hand-held coagulation puncture device of claim 1, wherein: the positive electrode and the negative electrode comprise an outer tube and a water inlet tube which are arranged in a sleeved mode, and a cavity is formed between the outer tube and the inner tube; the water inlet pipe, the cavity and the water return pipe are communicated.

3. The hand-held coagulation puncture device of claim 2, wherein: the joint comprises a cooling water joint which is respectively connected with a water inlet pipe and a water return pipe of the electrode by utilizing a hose.

4. The hand-held coagulation puncture device of claim 1, wherein: the tabs include electrical tabs that are connected to positive and negative electrodes, respectively, with flexible wires.

5. The hand-held coagulation puncture device of claim 1, wherein: the puncture cannula comprises a cannula body, and the front end of the cannula body is conical.

6. The hand-held coagulation puncture device of claim 1, wherein: the puncture sleeve is connected with the shell by a quick-release mechanism; the quick-dismantling mechanism comprises a fixed block and a fastening cover; the fixed block is conical, a mounting hole for accommodating the puncture sleeve is formed in the fixed block, threads are formed in the conical surface of the fixed block, and the fixed block is axially split into a plurality of blocks; the fastening cover is provided with a conical hole consistent with the appearance of the fixed block, and the inner wall of the conical hole is provided with internal threads.

7. The hand-held coagulation puncture device of claim 1, wherein: a supporting piece extending into the puncture sleeve is arranged in the shell and made of an insulating material; the positive electrode and the negative electrode are clamped on the supporting piece and separated by the supporting piece.