RU119990U1 - MEDICAL NEEDLE HOLDER - Google Patents

Abstract

A medical needle holder containing intersecting jaws with rings, a lock, in the form of a ratchet and pressing jaws, characterized in that the working part of the jaws is made beveled at an angle of 45 ° from left to right to the horizontal plane of the needle holder.

Description

The utility model relates to the field of medicine, namely to general surgical clamping tools and needle holders and can be used in general surgery for all types of sutures using different types of needles having different sizes and configurations (straight, curved).

The quality of the operation depends on the choice of a suitable and convenient needle holder. More than 30 types of medical needle holders are known. (http://bone-surgery.ru/view/igloderzhateli/).

The following are required for medical needle holders:

1. Ensuring the accuracy of the surgical needle at all stages of suturing.

2. Reliability of fixing the needle in the working part of the tool.

3. Ease of gripping and releasing the surgical needle.

4. The lack of "chopping effect" when fixing a surgical needle.

5. Universality, if necessary, combining tissues with different properties.

6. The stability of the position of the medical needle holder in the surgeon's hand.

7. Compliance with the ergonomics requirements of the medical needle holder.

8. Preservation by working surfaces of operational properties for a long time.

9. The ability to connect the edges of the wound not only on the surface, but also in the depths of the wound with the same medical needle holder.

10. The balance of the medical needle holder, eliminating the occurrence of a "lever" effect.

11. For reliable fixation, the working tips of the medical needle holder can be bent in a plane.

The Mayo-Geghara medical needle holder was selected as a prototype. ("Topographic anatomy and operative surgery", Lopukhin Yu.M. - M., "Geotar-Med", - 2001).

A well-known medical needle holder consists of intersecting branches with rings and a lock, in the form of a rack and clamping jaws with notches on the working side of the clamping jaws. The closure of the clamping lips of the needle holder is made at an angle of 90 degrees to the horizontal plane of the needle holder. The fixation of the needle also occurs at an angle of 90 degrees to the longitudinal axis of the tool.

Known medical needle holder works as follows.

The distal phalanges of the I and IV fingers are inserted into the rings of the medical needle holder, and the place near the axis of the intersecting branches is fixed with the tip of the II finger, allowing you to open and close the lock like a cremallera, while the III finger supports the “lower” jaw. Thus, the fingers form a shape in the form of a triangle, ensuring a stable position of the tool in the hand. (Semenov G.M., Petrishin V.L., Kovshova M.V. Surgically suture, 2002)

A well-known medical needle holder is considered a direct classic needle holder. It can be made with different lengths and widths of handles, as well as different notches on the lips.

The disadvantages of the known tool are:

1. In deep and narrow wounds, inconvenience is created during manipulations due to the fact that curved needles are used and due to its curvature, the needle is displaced in the holder, which leads to trauma to the operated and surrounding tissues during surgery.

2. The volume of rotational movements of the hand and forearm of the surgeon is limited by the physiological range of motion in the proximal and distal radiolactic joints ("Atlas of Human Anatomy", Sinelnikov RD, Volume I, - M., "Medicine", - 1978).

The objective of the proposed utility model is to reduce the trauma of surrounding tissues during stitching, improve the ergonomics of the medical needle holder and reduce the physical costs of the surgeon by reducing manipulations with the hand.

The problem is solved in that in the well-known medical needle holder containing intersecting branches with rings, a lock, in the form of a rack and clamping jaws, the working part of the jaws is made beveled at an angle of 45 degrees from left to right to the horizontal plane of the needle holder.

The proposed utility model meets the criterion of "novelty", as the patent information research conducted did not reveal the sources of scientific, technical and patent information that would discredit the novelty of the proposed model. The utility model meets the criterion of "industrial applicability", as it can be used widely in general.

The proposed medical needle holder allows you to get the following technical result.

1. The implementation of the working part of the clamping jaws beveled at an angle of 45 increases the angle and the range of possible movements during insertion and removal of the needle and reduces tissue trauma and surgical wound.

2. The implementation of the working part of the clamping jaws beveled at an angle of 45 increases the ease of use when stitching various tissues and reduces physical stress on the surgeon's hand.

3. The execution of the working part of the clamping jaws beveled at an angle of 45 increases the contact area of the needle in the clamping jaws, thereby reducing the risk of needle displacement in the needle holder and, accordingly, in the tissues, which also reduces the risk of tissue trauma during surgery.

The proposed medical needle holder meets all of the above requirements for needle holders: it ensures the accuracy of the surgical needle at all stages of suturing, reliably fixes the needle in the working part of the instrument, stabilizes the position of the needle holder in the surgeon's hand, allows you to use it if necessary to connect tissues with different properties., the ability to connect the edges of the wound not only on the surface, but also in the depth of the wound with the same medical needle holder, provides ease of grip Bani and release the surgical needle.

The proposed medical needle holder reduces tissue trauma during surgery, improves ergonomics and facilitates the work of the surgeon.

The utility model is illustrated by images (figures 1, 2, 3).

Figure 1 shows the proposed medical needle holder, General view; figure 2 is a comparison of the execution of the clamping jaws of the two needle holders of the proposed and prototype needle holder Mayo-Geghar; figure 3 is a view of the inner clamping jaws made at an angle of 45 degrees.

The proposed medical needle holder (figure 1) contains two intersecting branches 1 with rings 2 and a lock in the form of a rack and 3 clamping lips with working ends 4. The inner surfaces of the clamping jaws 5 are beveled at an angle of 45 degrees to the horizontal plane of the medical needle holder with a locking cutting 6 clamping jaws.

The proposed medical needle holder works as follows.

When stitching the tissues, a surgical needle is taken by the proposed medical needle holder. The needle is fixed with the clamping jaws of the proposed medical needle holder and is located in a plane at an angle of 45 ° to the horizontal plane.

An example of the use of the proposed needle holder is given in the form of an extract from the medical history.

Extract from the medical history No. 3372:

Patient V., 73 years old, was admitted to the Municipal Clinical Hospital "City Clinical Hospital No. 7" on a planned schedule 05.10.11 with a diagnosis of postoperative large hernia. 10/06/11 operation: the old postoperative scar was partially excised, a hernial sac was isolated and excised; the aponeurosis is prepared for plastic, the defect in the aponeurosis is about 7-8 cm in diameter, sutured with separate interrupted sutures; on top of the aponeurosis, a polypropylene mesh is fixed with two rows of seams; a suture of subcutaneous fatty tissue throughout with fixation to the endoprosthesis and the bottom of the wound; stitches on the skin. During the operation, the proposed needle holder was used. The total number of sutures imposed using the proposed medical needle holder was about 70. The use of the proposed needle holder made it possible to reduce the total physical load on the surgeon by reducing the range of motion of the wrist and forearm when applying each suture. Also, in the process of suturing, less tissue trauma was noted, which is important for hernia repair, when minimal surgical trauma to the tissues is required. The postoperative period was uneventful, no wound complications were noted, the patient was discharged in satisfactory condition for outpatient treatment on the 12th day.

Claims (1)

A medical needle holder containing intersecting branches with rings, a lock, in the form of a rack and clamping jaws, characterized in that the working part of the jaws is beveled at an angle of 45 ° from left to right to the horizontal plane of the needle holder.