CN201572081U

CN201572081U - Special cannula for non-blind area laparoscope

Info

Publication number: CN201572081U
Application number: CN2009202618713U
Authority: CN
Inventors: 郭秀琪; 李明伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-23
Filing date: 2009-12-23
Publication date: 2010-09-08
Anticipated expiration: 2019-12-23

Abstract

The utility model discloses a special cannula for a non-blind area laparoscope, which comprises a tube with an inclined surface at the front end and a converter connected to the rear end of the tube. A CO2 air inlet tube joint and a control valve are arranged on the converter; and the CO2 air inlet tube joint is communicated with a tube hole of the tube. The special cannula is characterized in that a longitudinal small hole passage, a thin and long circular rod and a tube cover are arranged on the tube wall of the upper portion of the tube; the longitudinal small hole passage is parallel to the center line of the tube; the circular rod rotatably and slidably penetrates into the small hole passage; the rear end of the circular rod extends out of the rear end surface of the converter; a handle is arranged at the tail end of the circular rod; the front portion of the tube cover is circular arc-shaped; the rear end of the tube cover is parallel to the inclined surface at the front end of the tube; the outer contour of the whole tube cover is equal to or slightly smaller than the outer diameter of the tube; a convex mirror is installed at the rear end of the tube cover; and the upper portion inside the tube cover is hinged to the front end of the circular rod into a whole. When in operation, the special cannula for the non-blind area laparoscope can be used for clearly seeing the front surface and the back surface of an operation target portion.

Description

Non-blind area peritoneoscope specialized barrel

Technical field

This utility model relates to a kind of medical surgical instrument accessory, especially a kind of laparoscopic cannula.

Background technology

Peritoneoscope puncture casing (Troca) is that American Hasson invented in late 1970s.This sleeve pipe comprises pipe and transducer that is connected this pipe rear end that one section front end is the inclined-plane; Wherein transducer is provided with CO ₂Air inlet pipe joint and control valve, CO ₂The air inlet pipe joint communicates with the pore of pipe.During operation, various operating theater instruments or peritoneoscope can be deep in patient's the abdominal cavity by the endoporus of pipe.But, endoscope-assistant surgery mostly is the plan view operation at present, in operation process, often running into needs from disconnected, excision, ligation target site, but the dissect physiology at the target site back side can not dissociate fully, may have vitals such as nerve, blood vessel, and it is difficult to cause the doctor to operate, operation might cause damage, so this sleeve pipe is necessary to improve.

Summary of the invention

The purpose of this utility model is the deficiency that overcomes prior art, and provide a kind of non-blind area peritoneoscope specialized barrel to surgeon, in this sleeve pipe, insert peritoneoscope and not only can see front, surgical target position clearly, can also see the back side at surgical target position clearly, operation can be implemented smoothly safely.

In order to realize above-mentioned purpose, can adopt following technical scheme: the non-blind area peritoneoscope specialized barrel of this programme is the same with prior art, comprises pipe and a transducer that is connected this pipe rear end that one section front end is the inclined-plane; Wherein transducer is provided with CO ₂Air inlet pipe joint and control valve, CO ₂The air inlet pipe joint communicates with the pore of pipe, and its improvement is:

The tube wall on described pipe top is provided with a vertical little hole path parallel with the pipe centrage; Also have,

An elongated round bar, what this round bar turned and slided is through in the above-mentioned little hole path, and rear end face and tail end that transducer is stretched out in its rear end have a hands handle;

A pipe lid, the front portion of this pipe lid is a circular arc, and its rear end is parallel with the inclined-plane of aforementioned pipe front end, and the gabarit of whole pipe lid is equal to or slightly less than the external diameter of pipe, face also is equipped with a convex mirror within it, and the top in this pipe lid is also held before hinged with aforesaid round bar.

During operation, non-blind area peritoneoscope specialized barrel is inserted patient's abdominal cavity, then by push-and-pull or rotation round bar, make the position of the convex mirror in the pipe lid move or rotate, neither front, surgical target position is seen in influence clearly; If desire to see clearly the back side at surgical target position, then can extend the pipe lid back side at surgical target position, by the reflection of convex mirror, just can see the back side of surgical target clearly.And, utilize the handling tongs from another telescopic pore, stretch in the patient abdominal cavity, can also rotate the angle between pipe lid and the round bar, make the back side at surgical target position get different parts and see more clearly.

The beneficial effects of the utility model are:

1, the front end of non-blind area peritoneoscope specialized barrel of the present utility model is provided with a pipe lid that shields, and the pipe lid is articulated in round bar again, utilizes the Movable joint of pin joint to realize that pipe covers adjustable angle.Round bar passes in transducer and pipe by its intrinsic passage, the terminal handle that connects, and rotation and drawing handle can realize managing the flexible and rotation of lid.When sleeve pipe penetrated the abdominal cavity, pipe was built protective effect, prevented to damage the intravital organ of patient.After entering the abdominal cavity, use handle to release and the roll tube lid, expose the pore of pipe, the turnover of tolerable abdominal cavity camera lens.When needs are seen blind area, the surgical target back side, can be by rotation and drawing handle, flexible and roll tube lid will be managed lid and be placed the surgical target back side, by direct reflection, observe the blind area, the back side of surgical target.The minute surface of over cap also can be adjusted angle by another handling tongs, to obtain the optimal viewing angle.

2, this utility model has the multi-angle viewing blind zone, and is simple in structure, easy to use, improves advantages such as operation safety.

In order to make this utility model be convenient to understand, it is described further below by drawings and Examples with more clear.

Description of drawings

Fig. 1 is the structural representation of embodiment of the present utility model.

Fig. 2 is the A-A section enlarged diagram of Fig. 1.

The specific embodiment

Embodiment is referring to Fig. 1 and Fig. 2.The non-blind area peritoneoscope specialized barrel 10 of present embodiment comprises pipe 13 and transducer 14 that is connected these pipe 13 rear ends that one section front end is the inclined-plane; Wherein transducer 14 is provided with CO ₂Air inlet pipe joint 12 and control valve 11, CO ₂Air inlet pipe joint 12 communicates with the pore 133 of pipe 13;

The tube wall on pipe 13 tops is provided with a vertical aperture passage 132 parallel with pipe 13 centrages; Also have in addition: an elongated round bar 20, what this round bar 20 turned and slided is through in the above-mentioned aperture passage 132, and rear end face and tail end that transducer 14 is stretched out in its rear end have a handle 21; A pipe covers 40, the front portion of this pipe lid 40 is a circular arc, its rear end is parallel with the inclined-plane of aforementioned pipe 13 front ends, the gabarit of whole pipe lid 40 is equal to or slightly less than the external diameter of pipe 13, a convex mirror 30 also is housed in its back-end, and the top in this pipe lid 40 is also held before hinged with aforesaid round bar 20.

Secondly, on the pipe 13 close tube walls of front end, also be provided with one and the vertical through hole 131 of its centrage.

Only be the preferred embodiment of this utility model below, but it does not limit practical range of the present utility model, the equivalent variations and the modification that promptly do not depart from claim of the present utility model and done must belong to the protection domain of this utility model.

Claims

1. a non-blind area peritoneoscope specialized barrel comprises pipe and a transducer that is connected this pipe rear end that one section front end is the inclined-plane; Wherein transducer is provided with CO ₂Air inlet pipe joint and control valve, CO ₂The air inlet pipe joint communicates with the pore of pipe, it is characterized in that:

A pipe lid, the front portion of this pipe lid is a circular arc, and its rear end is parallel with the inclined-plane of aforementioned pipe front end, and the gabarit of whole pipe lid is equal to or slightly less than the external diameter of pipe, a convex mirror also is housed in its back-end, and the top in this pipe lid is also held before hinged with aforesaid round bar.

2. non-blind area peritoneoscope specialized barrel according to claim 1 is characterized in that at described pipe near also being provided with one and the vertical through hole of its centrage on the tube wall of front end.