CN211434149U

CN211434149U - Trocar convenient to safety is retrieved

Info

Publication number: CN211434149U
Application number: CN201922448733.2U
Authority: CN
Inventors: 刘蕊嘉; 鲍丙豪; 于旭东; 王俊梅; 徐薇薇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-08
Anticipated expiration: 2029-12-30

Abstract

The utility model belongs to the technical field of medical instrument, more specifically say, relate to a trocar convenient to safety is retrieved. The utility model discloses a trocar includes the needle body, and the needle body includes needle handle and nook closing member, still includes interior sleeve pipe and outer tube, outer tube and needle handle fixed connection, interior sleeve pipe set up in the outer tube and with outer tube sliding connection, its tip salient in the nook closing member when interior sleeve pipe stretches out from the outer tube. The utility model discloses a trocar, interior sleeve pipe can follow the outer tube inner wall when advancing the needle or pulling out the needle and stretch out and draw back, and interior sleeve pipe bottom contacts with the acupuncture point, can cover the nook closing member completely, and operating personnel's finger does not can realize advancing the needle, carry and insert and twist with fingers and move to reduce the probability that acupuncture process germ infects the propagation, promote the security of acupuncture in medical practice, guaranteed that the needle body recovery process is safe aseptic.

Description

Trocar convenient to safety is retrieved

Technical Field

The utility model belongs to the technical field of medical instrument, more specifically say, relate to a trocar convenient to safety is retrieved.

Background

Acupuncture is an important component of traditional Chinese medicine, and means that a needling instrument (usually a filiform needle) is inserted into a patient body at a certain angle under the guidance of the theory of traditional Chinese medicine, and specific parts of the human body are stimulated by applying needling techniques such as twirling, lifting and inserting, and the like, so as to achieve the purpose of treating diseases. The traditional medical technology of acupuncture has been developed in a long-term medical practice, and acupuncture and moxibustion, which has the unique advantages of simplicity, convenience, efficiency and low cost, is more and more popular with doctors and patients and is accepted worldwide since the modern times. With the increasing use of acupuncture and moxibustion, some safety problems also occur in the process of medical practice, among which the most prominent one is in the process of needle recovery.

The inventor of the application, as a student of the college of traditional Chinese medicine, finds that the recovery problem of the acupuncture needle generally exists in the process of medical experiments. Particularly, the condition that the needle is accidentally injured by the wrong puncture of the waste needle is often encountered in the process of recovering the needle after the acupuncture is finished, and the waste needle is remained in the body of a patient for a period of time, so that whether the waste needle carries infectious germs or not cannot be known, and therefore, the potential safety hazard is relatively large.

In view of the above problems, related technical solutions are disclosed in the prior art, such as patent application nos.: 2017213679768, filing date: in 2017, 10 and 23 months, the invention and creation name is as follows: an acupuncture needle of this application, the acupuncture needle of this application includes the needle body, is equipped with syringe needle, needle bar, needle handle, backshank and spring sleeve pipe on the needle body, and the syringe needle sets up at the needle body front end to with needle body coupling. One end of the needle rod is connected with the needle head, the other end of the needle rod is connected with the needle handle, the needle tail is arranged at the tail part of the needle body and is connected with the needle handle, and the spring sleeve wraps the periphery of the needle body. The spring sleeve has been increased in this scheme, and the practitioner directly contacts the spring sleeve to the operation process doctor finger, and does not contact the acupuncture needle, and the operation is aseptic, reduces the infection probability. However, the spring sleeve is easy to deform, an operator cannot easily hold the needle, and a gap is reserved between the upper spring and the lower spring when the springs are in an open state, so that the phenomenon that the hands touch the needle core and the infection chance still exists can not be effectively prevented, and therefore the scheme is worthy of further improvement.

Again as in patent application No.: 2008201419116, filing date: the invention and creation name is as follows on 9, 12 months in 2008: the utility model provides an aseptic flexible pipe needle is used in acupuncture, the aseptic flexible pipe needle of this application, includes the needle body and sets up the body in the needle body outside, the needle stalk portion of needle body and the inner wall rigid coupling of body, the outside cover of body is equipped with the outer tube. The device can carry out operations such as lifting, inserting, twisting and the like only by contacting the tube body and the sleeve outside the needle body without contacting the needle body with hands, thereby achieving the aim of aseptic treatment in the whole process.

The inventor of the application has tested the device, discover along with the needle body pierces the skin, the outer tube upwards contracts, after the outer tube contracts to a certain extent, can be held the position by the finger and block, it is the telescopic shrink that can be influenced to handheld position promptly, the position that the body was held to the needle carrying personnel is just restricted to the needle handle upper segment, and the acupuncture needle is usually more slender, to beginner, difficult grasp at this moment and carry and insert, professional action such as twirling, lead to this acupuncture needle utilization degree to be reduced, can't give full play to the function of acupuncture needle.

In view of the above, it is an urgent technical problem to solve in the prior art to overcome the disadvantages caused by the insufficient safety of the needle recovery process.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model provides a trocar convenient to safety is retrieved, interior sleeve pipe can follow the outer tube inner wall flexible and establish the nook closing member in order to cover when inserting the needle or pulling out the needle to reduce the probability that acupuncture process germ infects the propagation, guaranteed that needle body recovery process safety is aseptic.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a trocar convenient to safety is retrieved, including the needle body, the needle body includes needle handle and nook closing member, still includes interior sleeve pipe and outer tube, outer tube and needle handle fixed connection, interior sleeve pipe set up in the outer tube and with outer tube sliding connection, its tip salient in the nook closing member when interior sleeve pipe stretches out from the outer tube.

As a further improvement, the outer tube and the interior sleeve pipe are cylindrical structures, and the outer tube bottom is equipped with the constriction of radial contraction, and interior sleeve pipe top is equipped with the expansion portion of radial expansion, and the block of sleeve pipe and outer tube is realized through the cooperation of constriction and expansion portion.

As a further improvement, the bottom of the inner sleeve is further provided with positioning support legs, and the positioning support legs extend outwards along the radial direction of the inner sleeve.

As a further improvement, the inner side wall of the inner sleeve is also provided with a supporting part arranged along the circumferential direction of the inner side wall, and the supporting part is used for fixing the needle core.

As a further improvement, the supporting portion is disposed on the inner side wall of the bottom of the inner sleeve, and the supporting portion is of an annular structure concentric with the inner sleeve.

As a further improvement, the needle handle is arranged along the length direction of the outer sleeve tube in a protruding way to form a clamping part, and the top of the clamping part is also provided with a baffle.

As a further improvement of the utility model, the outer surface of the outer sleeve is also provided with an anti-skid part.

As a further improvement, the anti-skid part is an anti-skid salient point or an anti-skid line arranged along the circumferential direction of the outer sleeve.

As a further improvement of the utility model, the outer sleeve is made of hard material.

As a further improvement of the utility model, the inner sleeve is made of transparent material.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model discloses a trocar convenient to safety is retrieved, outer tube and needle handle fixed connection, interior sleeve pipe set up in the outer tube and with outer tube sliding connection, interior sleeve pipe can follow the outer tube inner wall when inserting the needle or pulling out the needle and stretch out and draw back and establish the nook closing member with the cover, operating personnel's finger can not realize inserting with the nook closing member contact, carry and insert and twist round operation etc. to reduce the probability that acupuncture process germ infects the propagation, promote the security of acupuncture in medical practice, it is aseptic to have guaranteed that needle body recovery process safety is retrieved.

(2) The utility model discloses a trocar convenient to safety is retrieved, interior sheathed tube bottom still is equipped with the location stabilizer blade, after professional doctor judges the point of stinging according to the painful position of patient, can be through the acupuncture point of location stabilizer blade assistance-localization real-time, then carries out the action of inserting the needle again, and the outside extension of sleeve pipe radial direction in the location stabilizer blade edge can enlarge interior sleeve pipe and the area of contact of skin, does benefit to people's eye and observes for the location is more convenient, and the felting needle is more accurate.

(3) The utility model discloses a trocar convenient to safety is retrieved still is equipped with the supporting part of arranging along its circumference on the interior sheathed tube inside wall, and the supporting part sets up on the inside wall of interior sleeve bottom, when twisting round the action, and the nook closing member takes place to warp, and the supporting part can carry out certain auxiliary stay effect to the nook closing member to concentrate the atress of nook closing member at the contact point between supporting part and the nook closing member, weakened the needle point to a certain extent and felt the tingling of human body, improved patient's impression.

(4) The utility model discloses a trocar convenient to safety is retrieved, the length direction of needle handle along the outer tube upwards outstanding setting in order to form the clamping part, and the clamping part top still is equipped with the baffle, and the clamping part can be used for connecting electric acupuncture appearance or needle warming apparatus to strengthen the acupuncture effect, the baffle can prevent that the needle clamp on the clamping part from upwards sliding and droing, plays spacing effect.

Drawings

FIG. 1 is a schematic structural view of a middle trocar according to the present invention;

fig. 2 is a schematic view of the trocar in use according to the present invention.

The reference numerals in the schematic drawings illustrate:

100. a needle handle; 110. a clamping portion; 111. a baffle plate; 200. a needle core; 300. an inner sleeve; 310. an expansion section; 311. positioning the supporting legs; 312. a support portion; 400. an outer sleeve; 410. a constriction; 411. and an anti-slip part.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Example 1

Referring to fig. 1, fig. 1 shows a state of the trocar before use in this embodiment, the trocar convenient for safe recovery in this embodiment includes a trocar body, the trocar body includes a needle handle 100 and a needle core 200, the needle handle 100 is fixedly connected with the needle core 200, the trocar further includes an inner cannula 300 and an outer cannula 400, the outer cannula 400 is fixedly connected with the needle handle 100, the inner cannula 300 is disposed in the outer cannula 400 and slidably connected with the outer cannula 400, and when the inner cannula 300 extends out of the outer cannula 400, an end portion thereof protrudes out of the needle core 200.

Specifically, in the present embodiment, the inner cannula 300 is used for covering the stylet 200, the outer cannula 400 is used for accommodating the inner cannula 300, and the cavity formed by the inner cannula 300 is sufficient for accommodating the needle handle 100, so that the inner cannula 300 is not obstructed by the needle handle 100 when being retracted towards the outer cannula 400; further, the outer sleeve 400 of the present embodiment is fixedly connected to the needle handle 100, so that the outer sleeve 400 also corresponds to the needle handle 100, and when the operator performs needle insertion, the operator can rotate the outer sleeve 400 with fingers to control the angle and direction of the insertion of the stylet 200 into the skin.

With reference to fig. 2, fig. 2 shows a state after the trocar is used and the stylet 200 is inserted into a body, in this embodiment, the outer cannula 400 and the inner cannula 300 are both cylindrical structures, a radially contracted contraction portion 410 is arranged at the bottom of the outer cannula 400, a radially expanded expansion portion 310 is arranged at the top of the inner cannula 300, and the inner cannula 300 and the outer cannula 400 are engaged through the cooperation of the contraction portion 410 and the expansion portion 310.

When the needle core 200 stays in the human body for a period of time, the needle is left, the operator needs to pull the needle, the operator holds the outer sleeve 400 or the needle handle 100 to pull the needle core 200 out of the human body, and the inner sleeve 300 slides downwards along the inner wall of the outer sleeve 400 to cover the needle core 200 in the needle pulling process, so that the fingers of the operator are isolated from the needle core 200, and the safety, the sterility, the convenience and the effectiveness of the needle body recovery process are ensured.

In this embodiment, the inner cannula 300 is slidably connected with the outer cannula 400, and the inner cannula 300 is retracted into the outer cannula 400 as the depth of the stylet 200 penetrating into the skin is gradually increased, so that the inner cannula 300 can play a guiding role, so that a beginner can better control the needle insertion direction and angle, ensure smooth needle insertion and facilitate operation by a novice hand; the inner sleeve 300 also plays a role of a protective cover, in the acupuncture process, the inner sleeve 300 is tightly attached to a acupuncture point, and along with the progress of the needle inserting or pulling process, the needle core 200 can freely stretch and retract in the inner sleeve 300, so that the fingers of an operator can realize the operations of needle inserting, needle lifting, twisting and the like without contacting with the needle core 200, thereby reducing the probability of germ infection propagation in the acupuncture process, improving the safety of acupuncture in medical practice, and protecting patients and doctors.

Preferably, in order to ensure the aseptic manipulation of the acupuncture process, the end of the inner cannula 300 protrudes from the outer cannula 400 to the needle tip of the needle core 200 in this embodiment, so that the inner cannula 300 completely covers the needle core 200. Further, in order to make the needle core 200 accurately penetrate the skin, the bottom of the inner sleeve 300 in this embodiment is further provided with positioning legs 311, and the positioning legs 311 extend outward in the radial direction of the inner sleeve 300. Location stabilizer blade 311 can play assistance-localization real-time's effect, after the point of stinging is judged according to the painful position of patient to professional doctor, can carry out acupuncture point through location stabilizer blade 311 assistance-localization real-time, carries out the action of inserting the needle this moment again, and location stabilizer blade 311 outwards extends along interior sleeve pipe 300 radial direction, can enlarge the area of contact of sleeve pipe 300 and skin, does benefit to people's eye and observes for the location is more convenient, and the felting needle is more accurate.

Example 2

The trocar for facilitating safe recovery in this embodiment has a structure substantially the same as that of embodiment 1, and further, in this embodiment, the inner sidewall of the inner cannula 300 is further provided with a support portion 312 disposed along the circumferential direction thereof, and the support portion 312 is used for fixing the stylet 200. Preferably, the support 312 is disposed on the inner sidewall of the bottom of the inner sleeve 300, and the support 312 is an annular structure concentric with the inner sleeve 300.

In this embodiment, the outer tube 400 is controlled to perform specialized operations such as insertion, lifting and inserting, twisting and the like, the core 200 is complicated in stress, and the core 200 of the acupuncture needle is a filiform needle having a relatively slender structure, so that after the needle point is inserted into the skin, the stress point is mainly concentrated at the acupuncture point where the needle point contacts the skin and the connection between the core 200 and the needle handle 100, and the dynamic change of the needle point in the human body will cause pain to the patient.

Therefore, in order to improve the feeling of the patient, in the embodiment, the supporting portion 312 is disposed on the inner side wall of the bottom of the inner sleeve 300, when the needle is inserted perpendicular to the skin, the supporting portion 312 does not directly contact with the stylet 200, but has a gap with the stylet 200, when the twisting action is performed, the stylet 200 shakes, and the supporting portion 312 can perform a certain auxiliary supporting function on the stylet 200, so that the stress of the stylet 200 is concentrated on the contact point between the supporting portion 312 and the stylet 200, and the pricking feeling of the needle point to the human body is weakened to a certain extent.

Example 3

The trocar for safe recovery of the embodiment has substantially the same structure as that of embodiment 1, and further, the needle handle 100 protrudes upwards along the length direction of the outer sleeve 400 to form a clamping portion 110, and the top of the clamping portion 110 is further provided with a baffle 111. The clamping portion 110 in this embodiment can be used for connecting an electric acupuncture apparatus or a needle warming apparatus to enhance the acupuncture effect, and the baffle 111 can prevent the needle clip on the clamping portion 110 from sliding upwards and falling off to play a limiting role.

Further, in the present embodiment, the outer sleeve 400 is made of a hard material, and the inner sleeve 300 is made of a transparent material. In this embodiment, the outer surface of the outer sleeve 400 is further provided with an anti-slip portion 411, and specifically, in this embodiment, the anti-slip portion 411 is an anti-slip bump or an anti-slip pattern disposed along the circumferential direction of the outer sleeve 400. Because the outer sleeve 400 in this embodiment is equivalent to a needle handle, the anti-slip part arranged on the surface of the outer sleeve can improve the friction between the fingers and the outer sleeve 400, which is beneficial for the needle operation of an operator, and in addition, the inner sleeve 300 is also provided with scale marks to facilitate the observation of the needle insertion depth by the operator.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A trocar convenient for safe recovery, comprising a needle body, wherein the needle body comprises a needle handle (100) and a needle core (200), and is characterized in that: the needle handle is characterized by further comprising an inner sleeve (300) and an outer sleeve (400), wherein the outer sleeve (400) is fixedly connected with the needle handle (100), the inner sleeve (300) is arranged in the outer sleeve (400) and is in sliding connection with the outer sleeve (400), and the end part of the inner sleeve (300) protrudes out of the needle core (200) when the inner sleeve (300) extends out of the outer sleeve (400).

2. A trocar to facilitate safe retrieval as recited in claim 1, wherein: the outer sleeve (400) and the inner sleeve (300) are both cylindrical structures, a contraction part (410) which contracts in the radial direction is arranged at the bottom of the outer sleeve (400), an expansion part (310) which expands in the radial direction is arranged at the top of the inner sleeve (300), and the inner sleeve (300) is clamped with the outer sleeve (400) through the matching of the contraction part (410) and the expansion part (310).

3. A trocar to facilitate safe retrieval as recited in claim 2, wherein: the bottom of the inner sleeve (300) is also provided with positioning support legs (311), and the positioning support legs (311) extend outwards along the radial direction of the inner sleeve (300).

4. A trocar to facilitate safe retrieval as recited in claim 2, wherein: the inner side wall of the inner sleeve (300) is also provided with a supporting part (312) arranged along the circumferential direction of the inner sleeve, and the supporting part (312) is used for fixing the stylet (200).

5. A trocar to facilitate safe retrieval as recited in claim 4, wherein: the supporting part (312) is arranged on the inner side wall of the bottom of the inner sleeve (300), and the supporting part (312) is of an annular structure concentric with the inner sleeve (300).

6. A trocar to facilitate safe retrieval as recited in claim 2, wherein: the needle handle (100) is arranged in a protruding mode upwards along the length direction of the outer sleeve (400) to form a clamping portion (110), and a baffle (111) is further arranged on the top of the clamping portion (110).

7. A trocar to facilitate safe retrieval as recited in claim 6, wherein: the outer surface of the outer sleeve (400) is also provided with an anti-skid part (411).

8. A trocar to facilitate safe retrieval according to claim 7, wherein: the anti-skid part (411) is an anti-skid convex point or an anti-skid line which is arranged along the circumferential direction of the outer sleeve (400).

9. The trocar for convenient safe recovery according to any one of claims 1 to 8, wherein: the outer sleeve (400) is made of a hard material.

10. A trocar to facilitate safe retrieval according to claim 9, wherein: the inner sleeve (300) is made of a transparent material.